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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4761.6 Security fixes for F5 BIG-IP products 19 June 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-19150 CVE-2019-6688 CVE-2019-6686 CVE-2019-6683 CVE-2019-6682 CVE-2019-6678 Original Bulletin: https://support.f5.com/csp/article/K37890841 https://support.f5.com/csp/article/K40452417 https://support.f5.com/csp/article/K55812535 https://support.f5.com/csp/article/K04897373 https://support.f5.com/csp/article/K76328112 https://support.f5.com/csp/article/K39604784 https://support.f5.com/csp/article/K25607522 Revision History: June 19 2020: Vendor updated K40452417 and K76328112 advisories February 13 2020: Vendor updated K25607522 advisory with updated fix details February 11 2020: Update Security Advisory Status table [K76328112,K37890841] January 10 2020: Vendor published additional mitigation steps for K04897373. January 2 2020: K04897373 - Elaboarted "Security Advisory Description" section. December 23 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- K37890841:BIG-IP APM logging disclosure vulnerability CVE-2019-19150 Security Advisory Original Publication Date: 21 Dec, 2019 Latest Publication Date: 10 Feb, 2020 Security Advisory Description The BIG-IP APM system logs the client-session-id when a per-session policy is attached to the virtual server with debug logging enabled. (CVE-2019-19150) Impact The BIG-IP APM system logs the client-session-id in the log files and is available to authenticated administrators of the system. Security Advisory Status F5 Product Development has assigned ID 779177 (BIG-IP) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following table. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |15.0.0 - |15.1.0 | | | | | | |15.0.1 | | | | | | +------+----------+----------+ | | | | | |14.1.0 - | | | | | | |14.x |14.1.2 |14.1.2.1 | | | | | | |14.0.0 - |14.0.1.1 | | | | | | |14.0.1 | | | | | | +------+----------+----------+ | | | | |13.x |13.1.0 - |13.1.3.2 | | |BIG-IP APM| |BIG-IP (APM) | |13.1.3 | |Low |3.7 |logging | | +------+----------+----------+ | | | | |12.x |12.1.0 - |12.1.5.1 | | | | | | |12.1.5 | | | | | | +------+----------+----------+ | | | | |11.6.x|11.6.1 - |None | | | | | | |11.6.5 | | | | | | +------+----------+----------+ | | | | |11.5.x|None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |14.x |None |Not | | | | |BIG-IP (LTM, AAM, | | |applicable| | | | |AFM, Analytics, +------+----------+----------+ | | | |ASM, DNS, FPS, GTM,|13.x |None |Not |Not |None |None | |Link Controller, | | |applicable|vulnerable| | | |PEM) +------+----------+----------+ | | | | |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ | |7.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IQ Centralized |6.x |None |Not |Not |None |None | |Management | | |applicable|vulnerable| | | | +------+----------+----------+ | | | | |5.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation None Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 15.x) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - ------------------------------------------------------------------------------------ K40452417:BIG-IP ASM memory exhaustion vulnerability CVE-2019-6682 Security Advisory Original Publication Date: 21 Dec, 2019 Latest Publication Date: 18 Jun, 2020 Security Advisory Description The BIG-IP ASM system may consume excessive resources when processing certain types of HTTP responses from the origin web server. This vulnerability is only known to affect resource-constrained systems in which the security policy is configured with response-side features, such as Data Guard or response-side learning. (CVE-2019-6682) Note: BIG-IP ASM systems experiencing this vulnerability log the following error message to the /var/log/asm file: 01310003:0: ASM out of memory error: <event code>. Impact A remote attacker may be able to exhaust provisioned memory, interrupting traffic processing and causing a denial-of-service (DoS). Security Advisory Status F5 Product Development has assigned ID 725551 (BIG-IP ASM) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following table. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +------------------+------+----------+----------+-----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +------------------+------+----------+----------+-----------+------+----------+ | |15.x |15.0.0 - |15.1.0^3 | | | | | | |15.0.1 | | | | | | +------+----------+----------+ | | | | |14.x |14.1.0 - |14.1.2.3^3| | | | | | |14.1.2 | | | | | | +------+----------+----------+ | | | |BIG-IP (ASM) |13.x |13.1.0 - |13.1.3.2^3|Medium |5.9 |bd process| | | |13.1.3 | | | | | | +------+----------+----------+ | | | | |12.x |12.1.0 - |12.1.5.1^3| | | | | | |12.1.5 | | | | | | +------+----------+----------+ | | | | |11.x |11.5.2 - |11.6.5.2^3| | | | | | |11.6.5 | | | | | +------------------+------+----------+----------+-----------+------+----------+ | |15.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |14.x |None |Not | | | | |BIG-IP (LTM, AAM, | | |applicable| | | | |AFM, Analytics, +------+----------+----------+Not | | | |APM, DNS, FPS, |13.x |None |Not |vulnerable^|None |None | |GTM, Link | | |applicable|2 | | | |Controller, PEM) +------+----------+----------+ | | | | |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +------------------+------+----------+----------+-----------+------+----------+ |Enterprise Manager|3.x |None |Not |Not |None |None | | | | |applicable|vulnerable | | | +------------------+------+----------+----------+-----------+------+----------+ | |7.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IQ Centralized|6.x |None |Not |Not |None |None | |Management | | |applicable|vulnerable | | | | +------+----------+----------+ | | | | |5.x |None |Not | | | | | | | |applicable| | | | +------------------+------+----------+----------+-----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable | | | +------------------+------+----------+----------+-----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. ^2The specified products contain the affected code. However, F5 identifies the vulnerability status as Not vulnerable because the attacker cannot exploit the code in default, standard, or recommended configurations. ^3The fix requires that you upgrade to a version listed in the Fixes introduced in column, and configure the max_total_responses_memory internal parameter. For more information, refer to the Security Advisory Recommended Actions section. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column and configuring the max_total_responses_memory internal parameter. Mitigation Eliminating the vulnerability To eliminate this vulnerability, you must upgrade to a BIG-IP version listed in the Fixes introduced in column, and perform the following procedure: Impact of action: Performing the following procedure causes a temporary traffic disruption while the BIG-IP ASM service restarts. In addition, setting the max_total_responses_memory parameter allocates around 1 MB for response-side accumulation. Limiting response-side accumulation may lead to false negative scenarios, as BIG-IP ASM ignores responses that exceed this memory size. As a result, you may observe the following behaviors for responses that exceed the 1 MB memory size: o If the response was collected for learning, no learning is performed. o If the response was collected for enforcement (for example, Data Guard or response side signatures), no enforcement is performed. 1. Log in to the BIG-IP ASM command line. 2. To specify the maximum memory for response-side accumulation, type the following command: /usr/share/ts/bin/add_del_internal add max_total_responses_memory 1048640 3. To restart the BIG-IP ASM process, type the following command: tmsh restart /sys service asm Mitigating the vulnerability If you are unable to upgrade to a version listed in the Fixes introduced in column, you may be able to mitigate this vulnerability by either lowering the value of the max_filtered_html_length internal parameter, or disabling select response-side features if appropriate. To lower the value of the max_filtered_html_length internal parameter, refer to K42301022: Configuring the BIG-IP ASM system to parse HTTP responses that are larger than 50 MB in length (11.x - 15.x). Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 15.x) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - ------------------------------------------------------------------------------------ K55812535:BIG-IP MRF Diameter vulnerability CVE-2019-6686 Security Advisory Original Publication Date: 21 Dec, 2019 Security Advisory Description The Traffic Management Microkernel (TMM) might stop responding after the total number of diameter connections and pending messages on a single virtual server has reached 32K. (CVE-2019-6686) Impact BIG-IP This vulnerability affects only virtual servers associated with the message routing diameter profile. When the vulnerability is exploited, the Traffic Management Microkernel (TMM) creates a core file and restarts. As a result, the BIG-IP system fails to process traffic and fails over to its high availability (HA) peer, if configured. BIG-IQ / Enterprise Manager / Traffix SDC There is no impact; these F5 products are not affected by this vulnerability. Security Advisory Status F5 Product Development has assigned ID 808525 (BIG-IP) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases or hotfixes that address the vulnerability, refer to the following table. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |15.0.0 - |15.1.0 | | | | | | |15.0.1 | | | | | | +------+----------+----------+ | | | | | |14.1.0 - | | | | | | |14.x |14.1.2 |14.1.2.1 | | | | | | |14.0.0 - |14.0.1.1 | | | | | | |14.0.1 | | | |MRF | |BIG-IP (LTM) +------+----------+----------+High |5.3 |Diameter | | |13.x |13.1.0 - |13.1.3.2 | | |virtual | | | |13.1.3 | | | |server | | +------+----------+----------+ | | | | |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IP (AAM, AFM, |14.x |None |Not | | | | |Analytics, APM, | | |applicable| | | | |ASM, DNS, Edge +------+----------+----------+ | | | |Gateway, FPS, GTM, |13.x |None |Not |Not |None |None | |Link Controller, | | |applicable|vulnerable| | | |PEM, +------+----------+----------+ | | | |WebAccelerator) |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ | |6.x |None |Not | | | | |BIG-IQ Centralized | | |applicable|Not | | | |Management +------+----------+----------+vulnerable|None |None | | |5.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation To mitigate this vulnerability, you can create additional Message Routing Framework (MRF) Diameter virtual servers to distribute the traffic. For information about creating MRF Diameter virtual servers, refer to the following guides appropriate for your BIG-IP version: o BIG-IP 15.x: The Configuring Diameter Load Balancing and Message Routing chapter of the BIG-IP Service Provider: Diameter Administration guide o BIG-IP 13.x through 14.x: The Configuring Diameter Load Balancing and Message Routing chapter of the BIG-IP Service Provider: Message Routing Administration guide Note: For information about how to locate F5 product manuals, refer to K12453464: Tips for searching AskF5 and finding product documentation. Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 15.x) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - ------------------------------------------------------------------------------------ K04897373:BIG-IP TMM vulnerability CVE-2019-6678 Security Advisory Original Publication Date: 21 Dec, 2019 Latest Publication Date: 09 Jan, 2020 Security Advisory Description When the tm.minipfragsize BigDB variable is modified from the default value to a value less than 60 and the packet filter feature is enabled, specifically crafted fragmented TCP packets may cause the Traffic Management Microkernel (TMM) to fail and restart. (CVE-2019-6678) Impact TMM may restart and temporarily fail to process traffic. Security Advisory Status F5 Product Development has assigned ID 808301 (BIG-IP) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following table. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |15.0.0 - |15.1.0 | | | | | | |15.0.1 |15.0.1.1 | | | | | +------+----------+----------+ | | | | | |14.1.0 - | | | | | |BIG-IP (LTM, AAM, |14.x |14.1.2 |14.1.2.3 | | | | |AFM, Analytics, | |14.0.0 - |14.0.1.1 | | | | |APM, ASM, DNS, Edge| |14.0.1 | | | |Packet | |Gateway, FPS, GTM, +------+----------+----------+High |7.5 |filter | |Link Controller, |13.x |13.1.0 - |13.1.3.2 | | |feature | |PEM, | |13.1.3 | | | | | |WebAccelerator) +------+----------+----------+ | | | | |12.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | | |11.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ | |6.x |None |Not | | | | |BIG-IQ Centralized | | |applicable|Not | | | |Management +------+----------+----------+vulnerable|None |None | | |5.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation To mitigate this vulnerability, you can disable the packet filter feature or increase the value of the tm.minipfragsize variable to greater than 60. To do so, perform one of the following procedures: Disabling the packet filter feature Impact of action: All packet filtering capabilities will be disabled. 1. Log in to the Configuration utility. 2. Go to Network > Packet Filters > General. 3. Under Properties, for Packet Filtering, select Disabled 4. Select Update to save your changes. Note: If BIG-IP AFM is licensed and provisioned, you may be able to implement firewall rules in place of the packet filter functionality. Increasing the value of the tm.minipfragsize BigDB variable Impact of action: IP datagram payloads that are less than the value of the tm.minipfragsize variable and have the DF control flag set to 0 (May Fragment) or have the MF control flag set to 1 (More Fragments) are dropped unless it is the last fragment of the communication. Note: Changes to the tm.minipfragsize BigDB variable take effect immediately without requiring a restart of the BIG-IP system or a reload of the configuration. 1. Log in to the TMOS Shell (tmsh) by typing the following command: tmsh 2. List the current value of the tm.minipfragsize BigDB variable by typing the following command: list /sys db tm.minipfragsize all-properties Output should appear similar to the following example. In this example, the configured value is 40: sys db tm.minipfragsize { default-value "552" scf-config "true" value "40" value-range "unsigned integer min:1 max:65512" } 3. Increase the value of the tm.minipfragsize BigDB variable using the following syntax: modify /sys db tm.minipfragsize value <#> For example, to set the value to 552, type the following command: modify /sys db tm.minipfragsize value 552 - ------------------------------------------------------------------------------------ K76328112:BIG-IP TMM vulnerability CVE-2019-6683 Security Advisory Original Publication Date: 21 Dec, 2019 Latest Publication Date: 18 Jun, 2020 Security Advisory Description BIG-IP virtual servers with Loose Initiation enabled on a FastL4 profile may be subject to excessive flow usage under undisclosed conditions. (CVE-2019-6683) Impact This vulnerability is present only on BIG-IP Virtual Edition (VE) systems with limited bandwidth licenses. BIG-IP VE products with unlimited bandwidth are not affected. Memory usage increases and will trigger aggressive sweeper until exhaustion. In the /var/log/ltm file, affected systems log Inet port exhaustion log messages. Traffic processing is disrupted while the Traffic Management Microkernel (TMM) restarts. If the affected F5 device is configured as part of a device group, the system triggers a failover to the peer device. Security Advisory Status F5 Product Development has assigned ID 761112 (BIG-IP) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following table. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +-------------------+------+----------+----------+----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +-------------------+------+----------+----------+----------+------+----------+ | |15.x |15.0.0 - |15.1.0 | | | | |BIG-IP (LTM, AAM, | |15.0.1 | | | | | |AFM, Analytics, +------+----------+----------+ | | | |APM, ASM, DNS, Edge| |14.1.0 - | | | | | |Gateway, FPS, GTM, |14.x |14.1.2 |14.1.2.3 | | | | |Link Controller, | |14.0.0 - |14.0.1.1 | | | | |PEM, | |14.0.1 | | | | | |WebAccelerator) +------+----------+----------+Medium |5.9 |FastL4 | | |13.x |13.1.0 - |None | | |profile | |Note: This | |13.1.3 | | | | | |vulnerablility +------+----------+----------+ | | | |affects VEs with |12.x |12.1.0 - |12.1.5.1 | | | | |limited bandwidth | |12.1.5 | | | | | |licenses only. +------+----------+----------+ | | | | |11.x |11.5.2 - |11.6.5.2 | | | | | | |11.6.5 | | | | | +-------------------+------+----------+----------+----------+------+----------+ |Enterprise Manager |3.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ | |7.x |None |Not | | | | | | | |applicable| | | | | +------+----------+----------+ | | | |BIG-IQ Centralized |6.x |None |Not |Not |None |None | |Management | | |applicable|vulnerable| | | | +------+----------+----------+ | | | | |5.x |None |Not | | | | | | | |applicable| | | | +-------------------+------+----------+----------+----------+------+----------+ |F5 iWorkflow |2.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable| | | +-------------------+------+----------+----------+----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation None Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 15.x) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - ------------------------------------------------------------------------------------ K39604784:BIG-IP system incorrectly forwards VLAN-tagged frames with STP at Pass Through mode Security Advisory Original Publication Date: 21 Dec, 2019 Security Advisory Description The BIG-IP system incorrectly forwards VLAN-tagged frames, even if the VLAN is not defined on the ingress interface, when Spanning Tree Protocol (STP) is set to Pass Through mode. Note: The following BIG-IP platforms are not affected: o BIG-IP 2000s/2200s o BIG-IP 4000s/4200v o iSeries i850 o BIG-IP i2000 and i4000 Series o BIG-IP Virtual Edition (VE) This issue occurs when all of the following conditions are met: o The STP mode on the BIG-IP system is set to Pass Through. o The VLAN tag on the ingress packet is present on another port of the BIG-IP system (and not present on the ingress port). Impact BIG-IP system Ethernet frames in the network may not be delivered as expected. BIG-IQ, Enterprise Manager There is no impact on the data plane because the STP-related configuration is not enabled or used by default. The impact is strictly confined to the control plane and only is an issue when you use the TMOS shell (tmsh) to enable STP-related settings. Symptoms As a result of this issue, you may encounter the following symptom: o When inspecting packet captures, you observe that the BIG-IP system forwards VLAN-tagged frames, even if the VLAN is not defined on the ingress interface. Security Advisory Status F5 Product Development has assigned ID 758527 to this issue. F5 has confirmed that this issue exists in the products listed in the Applies to (see versions) box, located in the upper-right corner of this article. For information about releases, point releases, or hotfixes that resolve this issue, refer to the following table. +------------------+-----------------+----------------------------------------+ |Type of fix |Fixes introduced |Related articles | | |in | | +------------------+-----------------+----------------------------------------+ |Release |15.1.0 |K2200: Most recent versions of F5 | | |12.1.5 |software | +------------------+-----------------+----------------------------------------+ | |14.1.2.3 | | |Point release/ |14.0.0.5 |K9502: BIG-IP hotfix and point release | |hotfix |13.1.3.2 |matrix | | |11.6.5.1 | | +------------------+-----------------+----------------------------------------+ Security Advisory Recommended Actions Workaround To work around this issue, you can disable global STP. To do so, perform the following procedure: Impact of workaround: STP is enabled by default on all BIG-IP interfaces to help prevent bridge loops. F5 recommends testing any changes in an appropriate environment. 1. Log in to the TMOS Shell (tmsh) by entering the following command: tmsh 2. To disable global STP, use the following command syntax: modify /net stp-globals mode disabled 3. Save the configuration by entering the following command: save /sys config Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of AskF5 Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K13123: Managing BIG-IP product hotfixes (11.x - 15.x) o K15106: Managing BIG-IQ product hotfixes o K15113: BIG-IQ hotfix matrix o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - ------------------------------------------------------------------------------------ K25607522:BIG-IP vulnerability CVE-2019-6688 Security Advisory Original Publication Date: 21 Dec, 2019 Latest Publication Date: 11 Feb, 2020 Security Advisory Description A user can obtain the secret used to encrypt a BIG-IP UCS backup file while sending an SNMP query to the BIG-IP or BIG-IQ system; however, the user cannot access the UCS files. (CVE-2019-6688) Impact BIG-IP and BIG-IQ The SNMP user can obtain the secret used to encrypt the BIG-IP UCS backup file. Enterprise Manager and Traffix SDC These products are not affected by this vulnerability. Security Advisory Status F5 Product Development has assigned ID 738236 (BIG-IP and BIG-IQ) to this vulnerability. To determine if your product and version have been evaluated for this vulnerability, refer to the Applies to (see versions) box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following table. For more information about security advisory versioning, refer to K51812227: Understanding Security Advisory versioning. +------------------+------+----------+----------+-----------+------+----------+ | | |Versions |Fixes | |CVSSv3|Vulnerable| |Product |Branch|known to |introduced|Severity |score^|component | | | |be |in | |1 |or feature| | | |vulnerable| | | | | +------------------+------+----------+----------+-----------+------+----------+ | |15.x |15.0.0 - |15.1.0 | | | | | | |15.0.1 | | | | | | +------+----------+----------+ | | | | | |14.1.0 - | | | | | |BIG-IP (LTM, AAM, |14.x |14.1.2 |14.1.2.3 | | | | |AFM, Analytics, | |14.0.0 - |14.0.1.1 | | | | |APM, ASM, DNS, | |14.0.1 | | | |Password | |Edge Gateway, FPS,+------+----------+----------+Low |3.1 |used for | |GTM, Link |13.x |13.1.0 - |13.1.3.2 | | |UCS | |Controller, PEM, | |13.1.3 | | | |backups | |WebAccelerator) +------+----------+----------+ | | | | |12.x |12.1.0 - |12.1.5.1 | | | | | | |12.1.5 | | | | | | +------+----------+----------+ | | | | |11.x |11.5.2 - |11.6.5.1 | | | | | | |11.6.5 | | | | | +------------------+------+----------+----------+-----------+------+----------+ | | | |Not |Not | | | |Enterprise Manager|3.x |None |applicable|vulnerable^|None |None | | | | | |2 | | | +------------------+------+----------+----------+-----------+------+----------+ | |7.x |None |7.0.0 | | | | | +------+----------+----------+ | |Password | |BIG-IQ Centralized|6.x |6.0.0 - |None | | |used for | |Management | |6.1.0 | |Low |3.1 |UCS | | +------+----------+----------+ | |backups | | |5.x |5.2.0 - |None | | | | | | |5.4.0 | | | | | +------------------+------+----------+----------+-----------+------+----------+ |Traffix SDC |5.x |None |Not |Not |None |None | | | | |applicable|vulnerable | | | +------------------+------+----------+----------+-----------+------+----------+ ^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is possible that the document may be removed without our knowledge. ^2The specified products contain the affected code. However, F5 identifies the vulnerability status as Not vulnerable because the attacker cannot exploit the code in default, standard, or recommended configurations. Security Advisory Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Fixes introduced in column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation To mitigate this vulnerability, you can disable all forms of user access by way of SNMP to the affected system, including the read-only access. Supplemental Information o K51812227: Understanding Security Advisory versioning o K41942608: Overview of Security Advisory articles o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K9502: BIG-IP hotfix and point release matrix o K15113: BIG-IQ hotfix and point release matrix o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM systems (11.4.x and later) o K167: Downloading software and firmware from F5 o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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