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AUSCERT External Security Bulletin Redistribution
ESB-2022.1918
Cisco Firepower Threat Defense Software Local Malware
Analysis Denial of Service Vulnerability
29 April 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Firepower Threat Defense Software
Publisher: Cisco Systems
Operating System: Cisco
Resolution: Patch/Upgrade
CVE Names: CVE-2022-20748
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-amp-local-dos-CUfwRJXT
Comment: CVSS (Max): 5.3 CVE-2022-20748 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVSS Source: Cisco Systems
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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Cisco Firepower Threat Defense Software Local Malware Analysis Denial of
Service Vulnerability
Priority: Medium
Advisory ID: cisco-sa-ftd-amp-local-dos-CUfwRJXT
First Published: 2022 April 27 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvy33560
CVE Names: CVE-2022-20748
CWEs: CWE-664
Summary
o A vulnerability in the local malware analysis process of Cisco Firepower
Threat Defense (FTD) Software could allow an unauthenticated, remote
attacker to cause a denial of service (DoS) condition on the affected
device.
This vulnerability is due to insufficient error handling in the local
malware analysis process of an affected device. An attacker could exploit
this vulnerability by sending a crafted file through the device. A
successful exploit could allow the attacker to cause the local malware
analysis process to crash, which could result in a DoS condition.
Notes :
1. Manual intervention may be required to recover from this situation.
2. Malware cloud lookup and dynamic analysis will not be impacted.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-amp-local-dos-CUfwRJXT
This advisory is part of the April 2022 release of the Cisco ASA, FTD, and
FMC Security Advisory Bundled publication. For a complete list of the
advisories and links to them, see Cisco Event Response: April 2022 Cisco
ASA, FMC, and FTD Software Security Advisory Bundled Publication .
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco products if
they were running a vulnerable release of Cisco FTD Software and had a
Malware and File policy with Local Malware Analysis enabled.
For information about which Cisco software releases were vulnerable at the
time of publication, see the Fixed Software section of this advisory. See
the Details section in the bug ID(s) at the top of this advisory for the
most complete and current information.
Determine the Software Configuration
The Local Malware Analysis feature is enabled through Cisco Firepower
Management Center (FMC) Software and cannot be enabled in the Cisco
Firepower Device Manager (FDM) UI. This feature requires a Malware license.
To determine whether the Local Malware Analysis feature is enabled,
navigate to the Cisco FMC Software UI and select Policies > File Policy >
Rules . If any of the rules have Local Malware Analysis displayed in the
Action column, the feature is enabled. For more information, see the FMC
Configuration Guide .
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect Cisco Adaptive
Security Appliance (ASA) Software or Cisco FMC Software.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o When considering software upgrades , customers are advised to regularly
consult the advisories for Cisco products, which are available from the
Cisco Security Advisories page , to determine exposure and a complete
upgrade solution.
In all cases, customers should ensure that the devices to be upgraded
contain sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release.
If the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance
providers.
Fixed Releases
At the time of publication, the release information in the following table
(s) was accurate. See the Details section in the bug ID(s) at the top of
this advisory for the most complete and current information.
The left column lists Cisco software releases, and the right column
indicates whether a release was affected by the vulnerability described in
this advisory and which release included the fix for this vulnerability.
Cisco FTD Software Release First Fixed Release for This Vulnerability
6.2.2 and earlier ^1 Not vulnerable.
6.2.3 Not vulnerable.
6.3.0 ^1 Not vulnerable.
6.4.0 Not vulnerable.
6.5.0 ^1 Not vulnerable.
6.6.0 Not vulnerable.
6.7.0 Not vulnerable.
7.0.0 7.0.1
7.1.0 Not vulnerable.
1. Cisco FMC and FTD Software releases 6.2.2 and earlier, as well as
releases 6.3.0 and 6.5.0, have reached end of software maintenance .
Customers are advised to migrate to a supported release that includes the
fix for this vulnerability.
For instructions on upgrading your FTD device, see Cisco Firepower
Management Center Upgrade Guide .
The Cisco Product Security Incident Response Team (PSIRT) validates only
the affected and fixed release information that is documented in this
advisory.
Exploitation and Public Announcements
o The Cisco PSIRT is not aware of any public announcements or malicious use
of the vulnerability that is described in this advisory.
Source
o This vulnerability was found during internal security testing.
Cisco Security Vulnerability Policy
o To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy . This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
Related to This Advisory
o Cisco Event Response: April 2022 Cisco ASA, FMC, and FTD Software Security
Advisory Bundled Publication
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-amp-local-dos-CUfwRJXT
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2022-APR-27 |
+----------+---------------------------+----------+--------+--------------+
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