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AUSCERT External Security Bulletin Redistribution
ESB-2021.3596
Cisco Firepower Management Center Software multiple vulnerabilities
28 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firepower Management Center Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Create Arbitrary Files -- Existing Account
Cross-site Scripting -- Existing Account
Provide Misleading Information -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-34764 CVE-2021-34763 CVE-2021-34762
CVE-2021-34751 CVE-2021-34750
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dir-traversal-95UyW5tk
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-infodisc-Ft2WVmNU
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg
Comment: This bulletin contains three (3) Cisco Systems security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Firepower Management Center Software Authenticated Directory Traversal
Vulnerability
Priority: High
Advisory ID: cisco-sa-fmc-dir-traversal-95UyW5tk
First Published: 2021 October 27 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvy41771
CVE Names: CVE-2021-34762
CWEs: CWE-26
Summary
o A vulnerability in the web-based management interface of Cisco Firepower
Management Center (FMC) Software could allow an authenticated, remote
attacker to perform a directory traversal attack on an affected device. The
attacker would require valid device credentials.
The vulnerability is due to insufficient input validation of the HTTPS URL
by the web-based management interface. An attacker could exploit this
vulnerability by sending a crafted HTTPS request that contains directory
traversal character sequences to an affected device. A successful exploit
could allow the attacker to read or write arbitrary files on the 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-fmc-dir-traversal-95UyW5tk
This advisory is part of the October 2021 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: October 2021 Cisco
ASA, FMC, and FTD Software Security Advisory Bundled Publication .
Affected Products
o Vulnerable Products
This vulnerability affects devices that are running a vulnerable release of
Cisco FMC Software.
Note: The default configuration is vulnerable.
For information about which Cisco software releases are vulnerable, see the
Fixed Software section of this advisory.
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 Threat Defense (FTD)
Software.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o Cisco has released free software updates that address the vulnerability
described in this advisory. Customers may only install and expect support
for software versions and feature sets for which they have purchased a
license. By installing, downloading, accessing, or otherwise using such
software upgrades, customers agree to follow the terms of the Cisco
software license:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html
Additionally, customers may only download software for which they have a
valid license, procured from Cisco directly, or through a Cisco authorized
reseller or partner. In most cases this will be a maintenance upgrade to
software that was previously purchased. Free security software updates do
not entitle customers to a new software license, additional software
feature sets, or major revision upgrades.
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.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service
contract and customers who make purchases through third-party vendors but
are unsuccessful in obtaining fixed software through their point of sale
should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c
/en/us/support/web/tsd-cisco-worldwide-contacts.html
Customers should have the product serial number available and be prepared
to provide the URL of this advisory as evidence of entitlement to a free
upgrade.
Fixed Releases
In the following table(s), the left column lists Cisco software releases.
The center column indicates whether a release is affected by the
vulnerability described in this advisory and the first release that
includes the fix for this vulnerability. The right column indicates whether
a release is affected by any of the Critical or High SIR vulnerabilities
described in this bundle and which release includes fixes for those
vulnerabilities.
Cisco FMC Software
FMC First Fixed Release First Fixed Release for All
Software for This Vulnerability Vulnerabilities Described in the Bundle
Release of Advisories
6.2.2 and Migrate to a fixed Migrate to a fixed release.
earlier ^1 release.
6.2.3 Migrate to a fixed Migrate to a fixed release.
release.
6.3.0 ^1 Migrate to a fixed Migrate to a fixed release.
release.
6.4.0 6.4.0.13 (Nov 2021) 6.4.0.13 (Nov 2021)
6.5.0 ^1 Migrate to a fixed Migrate to a fixed release.
release.
6.6.0 6.6.5 6.6.5.1
6.7.0 6.7.0.3 (Jan 2022) 6.7.0.3 (Jan 2022)
7.0.0 7.0.1 7.0.1
1. Cisco FMC and FTD Software releases 6.0.1 and earlier, as well as
releases 6.2.0, 6.2.1, and 6.2.2, have reached end of software maintenance
. Customers are advised to migrate to a supported release that includes the
fix for this vulnerability.
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 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 by Brandon Sakai of Cisco 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: October 2021 Cisco ASA, FMC, and FTD Software
Security Advisory Bundled Publication
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dir-traversal-95UyW5tk
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-OCT-27 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------------------------------------------------------------
Cisco Firepower Management Center Software Configuration Information Disclosure
Vulnerabilities
Priority: Medium
Advisory ID: cisco-sa-fmc-infodisc-Ft2WVmNU
First Published: 2021 October 27 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvy69730 CSCvy72194
CVE Names: CVE-2021-34750 CVE-2021-34751
CWEs: CWE-317
Summary
o Multiple vulnerabilities in the administrative web-based GUI configuration
manager of Cisco Firepower Management Center (FMC) Software could allow an
authenticated, remote attacker to access sensitive configuration
information. The attacker would require low privilege credentials on an
affected device.
These vulnerabilities exist because of improper encryption of sensitive
information stored within the GUI configuration manager. An attacker could
exploit these vulnerabilities by logging into the GUI of Cisco FMC Software
and navigating to certain sensitive configurations. A successful exploit
could allow the attacker to view sensitive configuration parameters in
clear text.
Cisco has released software updates that address these vulnerabilities.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-infodisc-Ft2WVmNU
This advisory is part of the October 2021 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: October 2021 Cisco
ASA, FMC, and FTD Software Security Advisory Bundled Publication .
Affected Products
o Vulnerable Products
At the time of publication, these vulnerabilities affected vulnerable
releases of Cisco FMC Software.
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 these vulnerabilities.
Cisco has confirmed that these vulnerabilities do not affect Cisco Adaptive
Security Appliance (ASA) Software or Cisco Firepower Threat Defense (FTD)
Software.
Workarounds
o There are no workarounds that address these vulnerabilities.
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 vulnerabilities described
in this advisory and which release included the fix for these
vulnerabilities.
Cisco FMC Software
Cisco FMC Software Release First Fixed Release for These Vulnerabilities
6.2.2 and earlier ^1 Migrate to a fixed release.
6.2.3 Migrate to a fixed release.
6.3.0 ^1 Migrate to a fixed release.
6.4.0 6.4.0.13
6.5.0 ^1 Migrate to a fixed release.
6.6.0 6.6.5.1 (Nov 2021)
6.7.0 6.7.0.3 (Jan 2022)
7.0.0 7.0.1
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 these vulnerabilities.
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 Cisco would like to thank Fabio Poloni from Compass Security for reporting
these vulnerabilities.
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: October 2021 Cisco ASA, FMC, and FTD Software
Security Advisory Bundled Publication
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-infodisc-Ft2WVmNU
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-OCT-27 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------------------------------------------------------------
Cisco Firepower Management Center Software Cross-Site Scripting and Open
Redirect Vulnerabilities
Priority: Medium
Advisory ID: cisco-sa-fmc-xss-openredir-TVPMWJyg
First Published: 2021 October 27 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvx32283 CSCvx55664
CVE Names: CVE-2021-34763 CVE-2021-34764
CWEs: CWE-601 CWE-79
Summary
o Multiple vulnerabilities in the web-based management interface of Cisco
Firepower Management Center (FMC) Software could allow an attacker to
execute a cross-site scripting (XSS) attack or an open redirect attack.
For more information about these vulnerabilities, see the Details section
of this advisory.
Cisco has released software updates that address these vulnerabilities.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg
This advisory is part of the October 2021 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: October 2021 Cisco
ASA, FMC, and FTD Software Security Advisory Bundled Publication .
Affected Products
o Vulnerable Products
At the time of publication, these vulnerabilities affected Cisco FMC
Software.
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 these vulnerabilities.
Cisco has confirmed that these vulnerabilities do not affect Cisco Adaptive
Security Appliance (ASA) Software or Cisco Firepower Threat Defense (FTD)
Software.
Details
o These vulnerabilities are not dependent on one another. Exploitation of one
of the vulnerabilities is not required to exploit the other vulnerability.
In addition, a software release that is affected by one of the
vulnerabilities may not be affected by the other vulnerability.
Details about the vulnerabilities are as follows:
CVE-2021-34763: Cisco FMC Software Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco FMC Software
could allow an authenticated, remote attacker to conduct a XSS attack
against a user of the interface.
This vulnerability is due to insufficient validation of user-supplied input
by the web-based management interface. An attacker could exploit this
vulnerability by persuading a user of the interface to click a crafted
link. A successful exploit could allow the attacker to execute arbitrary
script code in the context of the interface or access sensitive,
browser-based information.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvx55664
CVE ID: CVE-2021-34763
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CVE-2021-34764: Cisco FMC Software Open Redirect Vulnerability
A vulnerability in the web interface of Cisco FMC Software could allow an
unauthenticated, remote attacker to redirect a user to a malicious web
page.
This vulnerability is due to improper input validation of HTTP request
parameters. An attacker could exploit this vulnerability by intercepting
and modifying an HTTP request from a user. A successful exploit could allow
the attacker to redirect the user to a specific malicious web page.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvx32283
CVE ID: CVE-2021-34764
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.7
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Workarounds
o There are no workarounds that address these vulnerabilities.
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 vulnerabilities described
in this advisory and which release included the fix for these
vulnerabilities.
Cisco FMC Software
Cisco FMC Software Release First Fixed Release for These Vulnerabilities
6.2.2 and earlier ^1 Migrate to a fixed release.
6.2.3 Migrate to a fixed release.
6.3.0 ^1 Migrate to a fixed release.
6.4.0 6.4.0.13 (Nov 2021)
6.5.0 ^1 Migrate to a fixed release.
6.6.0 6.6.5
6.7.0 6.7.0.3 (Jan 2022)
7.0.0 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 these vulnerabilities.
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 These vulnerabilities were found by Sanmith Prakash of Cisco 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: October 2021 Cisco ASA, FMC, and FTD Software
Security Advisory Bundled Publication
Cross-Site Scripting
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-openredir-TVPMWJyg
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-OCT-27 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------END INCLUDED TEXT--------------------
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