ESB-2019.0346 - [Appliance] F5 products: Modify arbitrary files - Remote with user interaction 2019-02-06
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0346 A vulnerability has been identified in F5 products 6 February 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Modify Arbitrary Files -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-6110 Reference: ESB-2019.0164.2 Original Bulletin: https://support.f5.com/csp/article/K42531048 - --------------------------BEGIN INCLUDED TEXT-------------------- K42531048: OpenSSH vulnerability CVE-2019-6110 Security Advisory Original Publication Date: Jan 18, 2019 Updated Date: Feb 06, 2019 Applies to (see versions): o Product: BIG-IQ, BIG-IQ Centralized Management - 6.1.0, 6.0.1, 6.0.0, 5.4.0, 5.3.0, 5.2.0, 5.1.0, 5.0.0 o Product: BIG-IP, BIG-IP AAM, BIG-IP AFM, BIG-IP Analytics, BIG-IP APM, BIG-IP ASM, BIG-IP DNS, BIG-IP Edge Gateway, BIG-IP FPS, BIG-IP GTM, BIG-IP Link Controller, BIG-IP LTM, BIG-IP PEM, BIG-IP WebAccelerator - 14.1.0, 14.0.0, 13.1.1, 13.1.0, 13.0.1, 13.0.0, 12.1.4, 12.1.3, 12.1.2, 12.1.1, 12.1.0, 11.6.3, 11.6.2, 11.6.1, 11.5.8, 11.5.7, 11.5.6, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1 o Product: Enterprise Manager - 3.1.1 o Product: F5 iWorkflow - 2.3.0 o Product: Traffix SDC - 5.1.0, 5.0.0, 4.4.0 Security Advisory Description In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred. (CVE-2019-6110) Impact Acceptance and display of arbitrary stderr allows for spoofing of OpenSSH SCP client output. For products with None in the Versions known to be vulnerable column, there is no impact. For products with ** in the various columns, F5 is still researching the issue and will update this article after confirming the required information. F5 Technical Support has no additional information about this issue. Security Advisory Status F5 Product Development has assigned ID 757604 (BIG-IP), ID 757604-8 (BIG-IQ), CPF-25054 and CPF-25055 (Traffix) 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| | | | | +---------------------+------+----------+----------+--------+------+----------+ | |14.x |14.0.0 - |None | | | | | | |14.1.0 | | | | | |BIG-IP (LTM, AAM, +------+----------+----------+ | | | |AFM, Analytics, APM, |13.x |13.0.0 - |None | | | | |ASM, DNS, Edge | |13.1.1 | | | |OpenSSH | |Gateway, FPS, +------+----------+----------+Low |3.1 |(SCP | |GTM, Link Controller,|12.x |12.1.0 - |None | | |client) | |PEM, WebAccelerator) | |12.1.4 | | | | | | +------+----------+----------+ | | | | |11.x |11.5.1 - |None | | | | | | |11.6.3 | | | | | +---------------------+------+----------+----------+--------+------+----------+ |Enterprise Manager |3.x |** |** |** |** |** | +---------------------+------+----------+----------+--------+------+----------+ | |6.x |6.0.0 - |None | | | | |BIG-IQ Centralized | |6.1.0 | | | |OpenSSH | |Management +------+----------+----------+Low |3.1 |(SCP | | |5.x |5.0.0 - |None | | |client) | | | |5.4.0 | | | | | +---------------------+------+----------+----------+--------+------+----------+ |F5 iWorkflow |2.x |** |** |** |** |** | +---------------------+------+----------+----------+--------+------+----------+ | |5.x |5.0.0 - | | | |OpenSSH | |Traffix SDC | |5.1.0 | |Low |3.1 |(SCP | | +------+----------+----------+ | |client) | | |4.x |4.4.0 |None | | | | +---------------------+------+----------+----------+--------+------+----------+ ^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. **Confirmation of vulnerability or non-vulnerability is not presently available. F5 is still researching the issue for the products indicated and will update this article with the most current information as soon as it has been confirmed. F5 Technical Support has no additional information on this issue. 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 There is no mitigation for a man-in-the-middle attack. You can mitigate the vulnerability from a malicious server by verifying the host key fingerprint when connecting to systems with the SCP client. 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 K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents o K31781390: January 2019 OpenSSH security vulnerabilities - --------------------------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. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. 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