Published:
29 May 2019
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AUSCERT External Security Bulletin Redistribution
ESB-2019.1509.3
F5 Networks bulletin: Appliance mode
29 May 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP
Publisher: F5 Networks
Impact/Access: Overwrite Arbitrary Files -- Existing Account
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-6614 CVE-2019-6615 CVE-2019-6616
Original Bulletin:
https://support.f5.com/csp/article/K46524395
https://support.f5.com/csp/article/K87659521
https://support.f5.com/csp/article/K82814400
Revision History: May 29 2019: Added branch 15.x
May 7 2019: Heuristics noted for BIG-IP iHealth
May 2 2019: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
K46524395:Appliance mode vulnerability CVE-2019-6614
Security Advisory
Original Publication Date: 01 May, 2019
Latest Publication Date: 29 May, 2019
Security Advisory Description
On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, internal methods
used to prevent arbitrary file overwrites in Appliance Mode were not fully
effective. An authenticated attacker with a high privilege level may be able to
bypass protections implemented in appliance mode to overwrite arbitrary system
files. (CVE-2019-6614)
Note: Appliance mode is designed to meet the needs of customers in especially
sensitive sectors by limiting the BIG-IP system administrative access to match
that of a typical network appliance and not a multi-user UNIX device. When a
BIG-IP system is configured in Appliance mode, the Advanced Shell (bash) access
to the file system is restricted. For information about Appliance mode, refer
to K12815: Overview of Appliance mode.
Impact
BIG-IP
This vulnerability may allow unauthorized write privileges to system files on
systems configured in Appliance mode.
BIG-IQ, F5 iWorkflow, Enterprise Manager, and Traffix SDC
There is no impact; these F5 products are not affected by this vulnerability.
Security Advisory Status
F5 Product Development has assigned ID 698376 (BIG-IP) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H46524395 on the Diagnostics >
Identified > Medium page.
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 |None |15.0.0 | | | |
| +------+----------+----------+ | | |
| |14.x |14.0.0 - |14.1.0.2 | | | |
|BIG-IP (LTM, AAM, | |14.1.0 | | | | |
|AFM, Analytics, +------+----------+----------+ | | |
|APM, ASM, DNS, Edge|13.x |13.0.0 - |13.1.1.5 | | |Appliance |
|Gateway, FPS, GTM, | |13.1.1 | |Medium |6.0 |mode |
|Link Controller, +------+----------+----------+ | | |
|PEM, |12.x |12.1.0 - |12.1.4.1 | | | |
|WebAccelerator) | |12.1.4 | | | | |
| +------+----------+----------+ | | |
| |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
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 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
- --------------------------------------------------------------------------------------
K87659521:Appliance mode tmsh vulnerability CVE-2019-6615
Security Advisory
Original Publication Date: 01 May, 2019
Latest Publication Date: 29 May, 2019
Security Advisory Description
On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and
11.5.2-11.5.8, Administrator and Resource Administrator roles might exploit
TMSH access to bypass Appliance Mode restrictions on BIG-IP systems. (
CVE-2019-6615)
Impact
Attackers can gain access to an Advanced Shell (bash).
Security Advisory Status
F5 Product Development has assigned ID 702472 (BIG-IP) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H87659521 on the Diagnostics >
Identified > Medium page.
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.
+------------------+------+----------+----------+-----------+------+----------+
| | |Versions |Fixes | |CVSSv3|Vulnerable|
|Product |Branch|known to |introduced|Severity |score^|component |
| | |be |in | |1 |or feature|
| | |vulnerable| | | | |
+------------------+------+----------+----------+-----------+------+----------+
| |15.x |None |15.0.0 | | | |
| +------+----------+----------+ | | |
| |14.x |14.0.0 - |14.1.0.2 | | | |
|BIG-IP (LTM, AAM, | |14.1.0 | | | | |
|AFM, Analytics, +------+----------+----------+ | | |
|APM, ASM, DNS, |13.x |13.0.0 - |13.1.1.5 | | | |
|Edge Gateway, | |13.1.1 | | | |Appliance |
|GTM, Link +------+----------+----------+Medium |6.7 |Mode |
|Controller, PEM, |12.x |12.1.0 - |12.1.4.1 | | | |
|WebAccelerator, | |12.1.4 | | | | |
|WebSafe) +------+----------+----------+ | | |
| | |11.6.1 - | | | | |
| |11.x |11.6.3 |11.6.4 | | | |
| | |11.5.2 - |11.5.9 | | | |
| | |11.5.8 | | | | |
+------------------+------+----------+----------+-----------+------+----------+
| | | |Not |Not | | |
|Enterprise Manager|3.x |None |applicable|vulnerable^|None |None |
| | | | |2 | | |
+------------------+------+----------+----------+-----------+------+----------+
| |5.x |None |Not | | | |
|BIG-IQ Centralized| | |applicable|Not | | |
|Management +------+----------+----------+vulnerable^|None |None |
| |4.x |None |Not |2 | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
|BIG-IQ Cloud and | | |Not |Not | | |
|Orchestration |1.x |None |applicable|vulnerable^|None |None |
| | | | |2 | | |
+------------------+------+----------+----------+-----------+------+----------+
| | | |Not |Not | | |
|F5 iWorkflow |2.x |None |applicable|vulnerable^|None |None |
| | | | |2 | | |
+------------------+------+----------+----------+-----------+------+----------+
| | | |Not |Not | | |
|LineRate |2.x |None |applicable|vulnerable^|None |None |
| | | | |2 | | |
+------------------+------+----------+----------+-----------+------+----------+
| |5.x |None |Not | | | |
| | | |applicable|Not | | |
|Traffix SDC +------+----------+----------+vulnerable^|None |None |
| |4.x |None |Not |2 | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
^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.
^2 The 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.
Note: For details about how Security Advisory articles are versioned, and what
versions are listed in the table, refer to K51812227: Understanding Security
Advisory versioning.
To determine the necessary upgrade path for your BIG-IQ system, you should
understand the BIG-IQ product offering name changes. For more information,
refer to K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems
.
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 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
- --------------------------------------------------------------------------------------
K82814400:Appliance mode tmsh vulnerability CVE-2019-6616
Security Advisory
Original Publication Date: 01 May, 2019
Latest Publication Date: 29 May, 2019
Security Advisory Description
On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and
11.5.2-11.5.8, administrative users with TMSH access can overwrite critical
system files on BIG-IP which can result in bypass of whitelist / blacklist
restrictions enforced by appliance mode. (CVE-2019-6616)
Impact
BIG-IP
This vulnerability allows a privilege escalation for authenticated
administrative users.
BIG-IQ, F5 iWorkflow, Enterprise Manager, and Traffix SDC
There is no impact; these F5 products are not affected by this vulnerability.
Security Advisory Status
F5 Product Development has assigned ID 703835 (BIG-IP) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H82814400 on the Diagnostics >
Identified > Medium page.
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.
+------------------+------+----------+----------+----------+------+-----------+
| | |Versions |Fixes | |CVSSv3|Vulnerable |
|Product |Branch|known to |introduced|Severity |score^|component |
| | |be |in | |1 |or feature |
| | |vulnerable| | | | |
+------------------+------+----------+----------+----------+------+-----------+
| |15.x |None |15.0.0 | | | |
| +------+----------+----------+ | | |
| |14.x |14.0.0 - |14.1.0.2 | | | |
| | |14.1.0 | | | | |
|BIG-IP (LTM, AAM, +------+----------+----------+ | |tmsh access|
|AFM, Analytics, |13.x |13.0.0 - |13.1.1.5 | | |on a BIG-IP|
|APM, ASM, DNS, | |13.1.1 | | | |system |
|Edge Gateway, FPS,+------+----------+----------+Medium |6.7 |configured |
|GTM, Link |12.x |12.1.0 - |12.1.4.1 | | |for |
|Controller, PEM, | |12.1.4 | | | |Appliance |
|WebAccelerator) +------+----------+----------+ | |mode |
| | |11.6.0 - | | | | |
| |11.x |11.6.3 |11.6.4 | | | |
| | |11.5.2 - |11.5.9 | | | |
| | |11.5.8 | | | | |
+------------------+------+----------+----------+----------+------+-----------+
|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
You should restrict tmsh access to only trusted administrative users on systems
configured in Appliance mode.
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 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
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