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AUSCERT External Security Bulletin Redistribution
ESB-2020.2921
BIG-IP Configuration utility vulnerability CVE-2020-5916
26 August 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP configuration utilities
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Cross-site Scripting -- Existing Account
Read-only Data Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-5927 CVE-2020-5916
Original Bulletin:
https://support.f5.com/csp/article/K29923912
https://support.f5.com/csp/article/K55873574
Comment: This bulletin contains two (2) F5 Networks security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
K29923912:BIG-IP Configuration utility vulnerability CVE-2020-5916
Security Advisory
Original Publication Date: 26 Aug, 2020
Security Advisory Description
The Certificate Administrator user role and higher privileged roles can perform
arbitrary file reads outside of the web root directory. (CVE-2020-5916)
Impact
Requests to the Configuration utility can result in arbitrary file reads
outside of the web root directory.
Security Advisory Status
F5 Product Development has assigned ID 830481 (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 or |
| | |be |in | |1 |feature |
| | |vulnerable| | | | |
+----------------+------+----------+----------+----------+------+-------------+
| |16.x |None |16.0.0 | | | |
| +------+----------+----------+ | | |
| | |15.1.0 |15.1.0.5 | | | |
| |15.x |15.0.0 - |15.0.1.4 | | | |
| | |15.0.1 | | | | |
|BIG-IP (LTM, +------+----------+----------+ | | |
|AAM, AFM, |14.x |None |Not | | | |
|Analytics, APM, | | |applicable| | |Configuration|
|ASM, DDHD, DNS, +------+----------+----------+Medium |4.3 |utility |
|FPS, GTM, Link |13.x |None |Not | | | |
|Controller, PEM,| | |applicable| | | |
|SSLO) +------+----------+----------+ | | |
| |12.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+----------------+------+----------+----------+----------+------+-------------+
| |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
Audit your role assignments to ensure that only trusted users have access to
Certificate Administrator and higher privileged user roles.
- --------------------------------------------------------------------------------
K55873574:BIG-IP ASM Configuration utility vulnerability CVE-2020-5927
Security Advisory
Original Publication Date: 26 Aug, 2020
Security Advisory Description
BIG-IP ASM Configuration utility stored cross-site scripting. (CVE-2020-5927)
Impact
An attacker may exploit this vulnerability by redirecting users to a malicious
page.
Security Advisory Status
F5 Product Development has assigned ID 888489 (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 or |
| | |be |in | |1 |feature |
| | |vulnerable| | | | |
+----------------+------+----------+----------+----------+------+-------------+
| |16.x |None |16.0.0 | | | |
| +------+----------+----------+ | | |
| | |15.1.0 |15.1.0.5 | | | |
| |15.x |15.0.0 - |15.0.1.4 | | | |
| | |15.0.1 | | | | |
| +------+----------+----------+ | | |
| |14.x |14.1.0 - |14.1.2.7 | | | |
|BIG-IP (ASM) | |14.1.2 | | | |BIG-IP ASM |
| +------+----------+----------+Medium |5.3 |Configuration|
| |13.x |None |Not | | |utility |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |12.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+----------------+------+----------+----------+----------+------+-------------+
| |16.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |15.x |None |Not | | | |
| | | |applicable| | | |
|BIG-IP (LTM, +------+----------+----------+ | | |
|AAM, AFM, |14.x |None |Not | | | |
|Analytics, APM, | | |applicable|Not | | |
|DNS, FPS, GTM, +------+----------+----------+vulnerable|None |None |
|Link Controller,|13.x |None |Not | | | |
|PEM) | | |applicable| | | |
| +------+----------+----------+ | | |
| |12.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+----------------+------+----------+----------+----------+------+-------------+
| |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
To mitigate this vulnerability for affected BIG-IP ASM system, you should only
permit management access to BIG-IP ASM system over a secure network and limit
shell access to trusted users. For more information about securing access to
BIG-IP systems, refer to K13309: Restricting access to the Configuration
utility by source IP address (11.x - 16.x) and K13092: Overview of securing
access to the BIG-IP system.
Acknowledgements
F5 would like to acknowledge Piyush Pandey and Krzysztof Przybylski Consulting
for bringing this issue to our attention and for following the highest
standards of coordinated disclosure.
- --------------------------END INCLUDED TEXT--------------------
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