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AUSCERT External Security Bulletin Redistribution
ESB-2022.6364
K71522481: Java vulnerability CVE-2021-2163
7 December 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP (all modules)
BIG-IQ Centralized Management
Publisher: F5 Networks
Operating System: Network Appliance
Resolution: Mitigation
CVE Names: CVE-2021-2163
Original Bulletin:
https://support.f5.com/csp/article/K71522481
Comment: CVSS (Max): 5.3 CVE-2021-2163 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N)
CVSS Source: F5 Networks
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
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K71522481: Java vulnerability CVE-2021-2163
Original Publication Date: 07 Dec, 2022
Security Advisory Description
Vulnerability in the Java SE, Java SE Embedded, Oracle GraalVM Enterprise
Edition product of Oracle Java SE (component: Libraries). Supported versions
that are affected are Java SE: 7u291, 8u281, 11.0.10, 16; Java SE Embedded:
8u281; Oracle GraalVM Enterprise Edition: 19.3.5, 20.3.1.2 and 21.0.0.2.
Difficult to exploit vulnerability allows unauthenticated attacker with network
access via multiple protocols to compromise Java SE, Java SE Embedded, Oracle
GraalVM Enterprise Edition. Successful attacks require human interaction from a
person other than the attacker. Successful attacks of this vulnerability can
result in unauthorized creation, deletion or modification access to critical
data or all Java SE, Java SE Embedded, Oracle GraalVM Enterprise Edition
accessible data. Note: This vulnerability applies to Java deployments that load
and run untrusted code (e.g., code that comes from the internet) and rely on
the Java sandbox for security. CVSS 3.1 Base Score 5.3 (Integrity impacts).
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N). (CVE-2021-2163)
Impact
An attacker may be able to create, delete or modify access to critical data.
Security Advisory Status
F5 Product Development has assigned ID 1188917 (BIG-IP) and ID 1188917-6
(BIG-IQ) to this vulnerability. This issue has been classified as CWE-327: Use
of a Broken or Risky Cryptographic Algorithm
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 tables. You can
also use iHealth to diagnose a vulnerability for BIG-IP and BIG-IQ systems. For
more information about using iHealth, refer to K27404821: Using F5 iHealth to
diagnose vulnerabilities. For more information about security advisory
versioning, refer to K51812227: Understanding security advisory versioning.
In this section
o BIG-IP and BIG-IQ
o F5OS
o NGINX
o Other products
BIG-IP and BIG-IQ
Note: After a fix is introduced for a given minor branch, that fix applies to
all subsequent maintenance and point releases for that branch, and no
additional fixes for that branch will be listed in the table. For example, when
a fix is introduced in 14.1.2.3, the fix also applies to 14.1.2.4, and all
later 14.1.x releases (14.1.3.x., 14.1.4.x). For more information, refer to
K51812227: Understanding security advisory versioning.
+------------+------+--------------+----------+----------+------+-------------+
| | |Versions known|Fixes | |CVSSv3|Vulnerable |
|Product |Branch|to be |introduced|Severity |score^|component or |
| | |vulnerable^1 |in | |2 |feature |
+------------+------+--------------+----------+----------+------+-------------+
| |17.x |17.0.0 |None | | | |
| +------+--------------+----------+ | | |
| |16.x |16.1.0 - |None | | | |
| | |16.1.3 | | | | |
| +------+--------------+----------+ | | |
|BIG-IP (all |15.x |15.1.0 - |None | | | |
|modules) | |15.1.8 | |Medium |5.3 |OpenJDK |
| +------+--------------+----------+ | | |
| |14.x |14.1.0 - |None | | | |
| | |14.1.5 | | | | |
| +------+--------------+----------+ | | |
| |13.x |13.1.0 - |None | | | |
| | |13.1.5 | | | | |
+------------+------+--------------+----------+----------+------+-------------+
|BIG-IP SPK |All |None |Not |Not |None |None |
| | | |applicable|vulnerable| | |
+------------+------+--------------+----------+----------+------+-------------+
|BIG-IQ |8.x |8.0.0 - 8.2.0 |None | | | |
|Centralized +------+--------------+----------+Medium |5.3 |OpenJDK |
|Management |7.x |7.1.0 |None | | | |
+------------+------+--------------+----------+----------+------+-------------+
^1F5 evaluates only software versions that have not yet reached the End of
Technical Support (EoTS) phase of their lifecycle. For more information, refer
to the Security hotfixes section of K4602: Overview of the F5 security
vulnerability response policy.
^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.
F5OS
+-------+------+----------------+----------+----------+-------+---------------+
| | |Versions known |Fixes | |CVSSv3 |Vulnerable |
|Product|Branch|to be vulnerable|introduced|Severity |score^2|component or |
| | |^1 |in | | |feature |
+-------+------+----------------+----------+----------+-------+---------------+
|F5OS-A |All |None |Not |Not |None |None |
| | | |applicable|vulnerable| | |
+-------+------+----------------+----------+----------+-------+---------------+
|F5OS-C |All |None |Not |Not |None |None |
| | | |applicable|vulnerable| | |
+-------+------+----------------+----------+----------+-------+---------------+
^1F5 evaluates only software versions that have not yet reached the End of
Technical Support (EoTS) phase of their lifecycle. For more information, refer
to the Security hotfixes section of K4602: Overview of the F5 security
vulnerability response policy.
^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.
NGINX
+---------+------+---------------+----------+----------+------+---------------+
| | |Versions known |Fixes | |CVSSv3|Vulnerable |
|Product |Branch|to be |introduced|Severity |score^|component or |
| | |vulnerable^1 |in | |2 |feature |
+---------+------+---------------+----------+----------+------+---------------+
|NGINX | | |Not |Not | | |
|(all |All |None |applicable|vulnerable|None |None |
|products)| | | | | | |
+---------+------+---------------+----------+----------+------+---------------+
^1F5 evaluates only software versions that have not yet reached the End of
Technical Support (EoTS) phase of their lifecycle. For more information, refer
to the Security hotfixes section of K4602: Overview of the F5 security
vulnerability response policy.
^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.
Other products
+-------+------+----------------+----------+----------+-------+---------------+
| | |Versions known |Fixes | |CVSSv3 |Vulnerable |
|Product|Branch|to be vulnerable|introduced|Severity |score^2|component or |
| | |^1 |in | | |feature |
+-------+------+----------------+----------+----------+-------+---------------+
|Traffix|All |None |Not |Not |None |None |
|SDC | | |applicable|vulnerable| | |
+-------+------+----------------+----------+----------+-------+---------------+
^1F5 evaluates only software versions that have not yet reached the End of
Technical Support (EoTS) phase of their lifecycle. For more information, refer
to the Security hotfixes section of K4602: Overview of the F5 security
vulnerability response policy.
^2The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.
Recommended Actions
If you are running a version listed in the Versions known to be vulnerable
column, you can eliminate this vulnerability by installing a version listed in
the Fixes introduced in column. If the Fixes introduced in column does not list
a version for your branch, then no update candidate currently exists for that
branch and F5 recommends that you upgrade to a version with the fix (refer to
the tables).
If the Fixes introduced in column lists a version prior to the one you are
running, in the same branch, then your version should have the fix.
Mitigation
BIG-IP or BIG-IQ admins or any high-privileged user with local access should
not click on any malicious links or accept inputs from unknown sources.
Supplemental Information
o K41942608: Overview of security advisory articles
o K12201527: Overview of Quarterly Security Notifications
o K51812227: Understanding security advisory versioning
o K4602: Overview of the F5 security vulnerability response policy
o K4918: Overview of the F5 critical issue hotfix policy
o K8986: F5 product support policies
o K9502: BIG-IP hotfix and point release matrix
o K13123: Managing BIG-IP product hotfixes (11.x - 17.x)
o K15106: Managing BIG-IQ product hotfixes
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
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