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AUSCERT External Security Bulletin Redistribution
ESB-2020.3129.2
Apache Struts vulnerability CVE-2019-0233
17 September 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Apache Struts
Publisher: F5 Networks
Operating System: Windows
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-0233
Reference: ESB-2020.2803
Original Bulletin:
https://support.f5.com/csp/article/K35226442
Revision History: September 17 2020: Vendor updated Security Advisory Descroiption and Product Table
September 11 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
K35226442:Apache Struts vulnerabilities CVE-2019-0233 and CVE-2019-0230
Security Advisory
Original Publication Date: 11 Sep, 2020
Latest Publication Date: 17 Sep, 2020
Security Advisory Description
o CVE-2019-0233
An access permission override in Apache Struts 2.0.0 to 2.5.20 may cause a
Denial of Service when performing a file upload.
o CVE-2019-0230
Apache Struts 2.0.0 to 2.5.20 forced double OGNL evaluation, when evaluated
on raw user input in tag attributes, may lead to remote code execution.
Impact
o An attacker may be able to use these vulnerabilities to cause a denial of
service (DoS) during file uploads, and remotely run code.
Security Advisory Status
F5 Product Development has assigned ID 943921 (BIG-IP) to these
vulnerabilities.
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 |
| | |be |in | |1 |or feature|
| | |vulnerable| | | | |
+------------------+------+----------+----------+-----------+------+----------+
| |15.x |15.1.0 |None | | | |
| +------+----------+----------+ | | |
| |14.x |14.1.0 - |None | | | |
| | |14.1.2 | | | | |
| +------+----------+----------+ | | |
| |13.x |13.1.0 - |None | | |Apache |
|BIG-IP (AAM) | |13.1.3 | |Low |3.9 |Struts |
| +------+----------+----------+ | | |
| |12.x |12.1.0 - |None | | | |
| | |12.1.5 | | | | |
| +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
| |16.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |15.x |None |Not | | | |
| | | |applicable| | | |
|BIG-IP (LTM, +------+----------+----------+ | | |
|Advanced WAF, AFM,|14.x |None |Not | | | |
|Analytics, APM, | | |applicable|Not | | |
|ASM, DDHD, DNS, +------+----------+----------+vulnerable^|None |None |
|FPS, GTM, Link |13.x |None |Not |2 | | |
|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.
^2The 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 these vulnerabilities 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
CVE-2019-0230 / CVE-2019-0233: You can eliminate both vulnerabilities by
de-provisioning the AAM module.
CVE-2019-0230 only: Alternatively, if de-provisioning the AAM module is not
possible, you can eliminate this vulnerability by performing the following
steps:
1. Log in to the BIG-IP command line.
2. Use a text editor to add the following string to the /usr/local/www/waui/
WEB-INF/struts.xml file:
<constant name="struts.excludedPackageNames" value="java.io.,java.nio." />
3. Save the changes and exit the file.
4. Restart the tomcat service by running the following command:
tmsh restart sys service tomcat
Supplemental Information
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 - 16.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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