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AUSCERT External Security Bulletin Redistribution
ESB-2021.1470
Cisco Firepower Device Manager On-Box Software and products security update
29 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firepower Device Manager On-Box Software
Firepower 1000 Series Appliances
Firepower 2100 Series Appliances
Firepower 4100 Series Appliances
Firepower 9300 Series Appliances
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Overwrite Arbitrary Files -- Existing Account
Create Arbitrary Files -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1489 CVE-2021-1369
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-xxe-zR7sxPfs
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-dos-nFES8xTN
Comment: This bulletin contains two (2) Cisco Systems security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Firepower Device Manager On-Box Software XML External Entity
Vulnerability
Priority: Medium
Advisory ID: cisco-sa-fdm-xxe-zR7sxPfs
First Published: 2021 April 28 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvu74231
CVE Names: CVE-2021-1369
CWEs: CWE-611
Summary
o A vulnerability in the REST API of Cisco Firepower Device Manager (FDM)
On-Box Software could allow an authenticated, remote attacker to gain read
and write access to information that is stored on an affected device.
This vulnerability is due to the improper handling of XML External Entity
(XXE) entries when parsing certain XML files. An attacker could exploit
this vulnerability by sending malicious requests that contain references in
XML entities to an affected system. A successful exploit could allow the
attacker to retrieve files from the local system, resulting in the
disclosure of sensitive information or causing a partial denial of service
(DoS) condition on the affected device.
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-fdm-xxe-zR7sxPfs
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco FDM On-Box
Software releases earlier than 6.5.0.5, 6.6.3, and 6.7.0.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
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 Firepower Management Center
(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, Cisco FDM On-Box Software releases 6.5.0.5,
6.6.4, and 6.7.0 and later contained the fix for this vulnerability.
Note : The First Fixed Release for the 6.6.0 code train was 6.6.3; however,
due to upgrade issues associated with CSCvx86231 the recommended release is
6.6.4.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (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.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-xxe-zR7sxPfs
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-APR-28 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------------------------------------------------------------
Cisco Firepower Device Manager Software Filesystem Space Exhaustion Denial of
Service Vulnerability
Priority: Medium
Advisory ID: cisco-sa-fdm-dos-nFES8xTN
First Published: 2021 April 28 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvt11547 CSCvx30735
CVE Names: CVE-2021-1489
CWEs: CWE-400
CVSS Score:
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:X
Summary
o A vulnerability in filesystem usage management for Cisco Firepower Device
Manager (FDM) Software could allow an authenticated, remote attacker to
exhaust filesystem resources, resulting in a denial of service (DoS)
condition on an affected device.
This vulnerability is due to the insufficient management of available
filesystem resources. An attacker could exploit this vulnerability by
uploading files to the device and exhausting available filesystem
resources. A successful exploit could allow the attacker to cause database
errors and cause the device to become unresponsive to web-based management.
Manual intervention is required to free filesystem resources and return the
device to an operational state.
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-fdm-dos-nFES8xTN
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected the following Cisco
products if they were running a vulnerable release of Cisco FDM Software:
Firepower 1000 Series Appliances
Firepower 2100 Series Appliances
Firepower 4100 Series Appliances
Firepower 9300 Series Appliances
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.
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 the following
Cisco products:
Adaptive Security Appliance (ASA) Software
Firepower Management Center (FMC) Software
Firepower Threat Defense (FTD) Software (when running on platforms not
listed above)
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
Earlier than 6.2.21 Migrate to a fixed release.
6.2.2 Migrate to a fixed release.
6.2.3 Migrate to a fixed release.
6.3.0 Migrate to a fixed release.
6.4.0 6.4.0.12 (May 2021)
6.5.0 Migrate to a fixed release.
6.6.0 6.6.4 ^2
6.7.0 6.7.0.2
1. Cisco FMC and FTD Software releases 6.0.1 and earlier, as well as
releases 6.2.0 and 6.2.1, have reached end of software maintenance .
Customers are advised to migrate to a supported release that includes the
fix for this vulnerability.
2. The First Fixed Release for the 6.6.0 code train was 6.6.3; however, due
to upgrade issues associated with CSCvx86231 the recommended release is
6.6.4.
To upgrade to a fixed release of Cisco FTD Software, do one of the
following:
For devices that are managed by using Cisco Firepower Management Center
(FMC), use the FMC interface to install the upgrade. After installation
is complete, reapply the access control policy.
For devices that are managed by using Cisco Firepower Device Manager
(FDM), use the FDM interface to install the upgrade. After installation
is complete, reapply the access control policy.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (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.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fdm-dos-nFES8xTN
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-APR-28 |
+----------+---------------------------+----------+--------+--------------+
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