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AUSCERT External Security Bulletin Redistribution
ESB-2020.1560.3
BIG-IP Edge Client for Windows vulnerability CVE-2020-5892
19 November 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP Products
Publisher: F5 Networks
Operating System: Network Appliance
Windows
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-5892
Original Bulletin:
https://support.f5.com/csp/article/K15838353
Revision History: November 19 2020: Vendor added additional fixes
June 19 2020: Vendor updated Security Advisory table
May 1 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
K15838353: BIG-IP Edge Client for Windows vulnerability CVE-2020-5892
Original Publication Date: 30 Apr, 2020
Latest Publication Date: 19 Nov, 2020
Security Advisory Description
The BIG-IP Edge Client components in BIG-IP APM, Edge Gateway, and FirePass
legacy allow attackers to obtain the full session ID from process memory.
(CVE-2020-5892)
Impact
An attacker with sufficient local privileges on a client machine running
Windows may be able to gain access to the full session ID.
Note: This vulnerability is limited to the BIG-IP Edge Client, F5 Access, and
FirePass legacy client for Windows only; it does not impact the BIG-IP or
FirePass host.
Security Advisory Status
F5 Product Development has assigned ID 773693 (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| | | | |
+------------------+------+----------+----------+----------+------+-----------+
| |16.x |16.0.0 - |None | | | |
| | |16.0.1^2 | | | | |
| +------+----------+----------+ | | |
| |15.x |15.0.0 - |15.1.2 | | | |
| | |15.1.1^2 | | | | |
| +------+----------+----------+ | | |
|BIG-IP (APM, Edge |14.x |14.0.0 - |None | | |BIG-IP Edge|
|Gateway) | |14.1.2^2 | | | |Client and |
| +------+----------+----------+Low |3.8 |F5 Access |
| |13.x |13.0.0 - |None | | |components |
| | |13.1.3^2 | | | | |
| +------+----------+----------+ | | |
| |12.x |12.1.0 - |None | | | |
| | |12.1.5 | | | | |
| +------+----------+----------+ | | |
| |11.x |11.6.1 - |11.6.5.2 | | | |
| | |11.6.5 | | | | |
+------------------+------+----------+----------+----------+------+-----------+
| | | | | | |BIG-IP Edge|
|BIG-IP APM Clients|7.1.x |7.1.5 - |7.1.9 |Low |3.8 |Client and |
| | |7.1.8 |7.1.8.4 | | |F5 Access |
| | | | | | |components |
+------------------+------+----------+----------+----------+------+-----------+
| |14.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
|BIG-IP (LTM, AAM, |13.x |None |Not | | | |
|AFM, Analytics, | | |applicable|Not | | |
|ASM, DNS, FPS, +------+----------+----------+vulnerable|None |None |
|GTM, Link |12.x |None |Not | | | |
|Controller, PEM) | | |applicable| | | |
| +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+----------+------+-----------+
| |6.x |None |Not | | | |
|BIG-IQ Centralized| | |applicable|Not | | |
|Management +------+----------+----------+vulnerable|None |None |
| |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.
^2In BIG-IP 13.1.0 and later, you can update APM client components
independently from BIG-IP software. To address this vulnerability, customers
running BIG-IP 13.1.0 and later can download and install an APM Clients version
listed in the Fixed introduced in column, and then redeploy the BIG-IP Edge
Client to end users.
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
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