Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.0705.2
Cisco FXOS Software CLI Vulnerabilities
9 March 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco FXOS Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Modify Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3169 CVE-2020-3166
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-fxos-cli-file
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-fpwr-cmdinj
Revision History: March 9 2020: Added ASA releases to fixed software for advisory ID:
cisco-sa-20200226-fxos-cli-file
February 27 2020: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco FXOS Software CLI Arbitrary File Read and Write Vulnerability
Priority: Medium
Advisory ID: cisco-sa-20200226-fxos-cli-file
First Published: 2020 February 26 16:00 GMT
Last Updated: 2020 March 6 19:06 GMT
Version 1.1: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvo42637CSCvr09748
CVE-2020-3166
CWE-20
CVSS Score:
4.2 AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:X/RC:X
Summary
o A vulnerability in the CLI of Cisco FXOS Software could allow an
authenticated, local attacker to read or write arbitrary files on the
underlying operating system (OS).
The vulnerability is due to insufficient input validation. An attacker
could exploit this vulnerability by including crafted arguments to a
specific CLI command. A successful exploit could allow the attacker to read
or write to arbitrary files on the underlying OS.
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-20200226-fxos-cli-file
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 FXOS Software:
Firepower 1000 Series
Firepower 2100 Series
Firepower 4100 Series
Firepower 9300 Security 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:
MDS 9000 Series Multilayer Switches
Nexus 1000 Virtual Edge for VMware vSphere
Nexus 1000V Switch for Microsoft Hyper-V
Nexus 1000V Switch for VMware vSphere
Nexus 3000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Nexus 6000 Series Switches
Nexus 7000 Series Switches
Nexus 9000 Series Fabric Switches in Application Centric Infrastructure
(ACI) mode
Nexus 9000 Series Switches in standalone NX-OS mode
UCS 6200 Series Fabric Interconnects
UCS 6300 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
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 and Alerts 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.
Cisco FXOS Software
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.
Firepower 1000 Series and 2100 Series appliances use Cisco FXOS Software as
an underlying operating system, which is included in Cisco ASA Software
unified image bundles or in Cisco FTD Software unified image bundles.
ASA Software for Firepower 1000 Series and Firepower 2100 Series:
CSCvr09748
Cisco ASA Software Release First Fixed Release for This Vulnerability
9.8 Migrate to a fixed release.
9.9 9.9.2.66
9.10 Migrate to a fixed release.
9.12 Migrate to a fixed release.
9.13 9.13.1.7
FTD Software for Firepower 1000 Series and Firepower 2100 Series:
CSCvr09748
Cisco FTD Software Release First Fixed Release for This Vulnerability
6.2.2 Migrate to a fixed release.
6.2.3 6.2.3.16 (Apr 2020)
6.3.0 Migrate to a fixed release.
6.4.0 Migrate to a fixed release.
6.5.0 6.5.0.3
FXOS Software for Firepower 4100 Series and Firepower 9300 Security
Appliances: CSCvo42637
Cisco FXOS Software Release First Fixed Release for This Vulnerability
Earlier than 2.2 Migrate to a fixed release.
2.2 2.2.2.97
2.3 2.3.1.155
2.4 2.4.1.238
2.6 2.6.1.157
2.7 Not vulnerable.
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-20200226-fxos-cli-file
Revision History
o +---------+-----------------------+--------------+--------+---------------+
| Version | Description | Section | Status | Date |
+---------+-----------------------+--------------+--------+---------------+
| 1.1 | Added ASA releases. | Fixed | Final | 2020-March-06 |
| | | Software | | |
+---------+-----------------------+--------------+--------+---------------+
| 1.0 | Initial public | - | Final | 2020-FEB-26 |
| | release. | | | |
+---------+-----------------------+--------------+--------+---------------+
- --------------------------------------------------------------------------------
Cisco FXOS Software CLI Command Injection Vulnerability
Priority: Medium
Advisory ID: cisco-sa-20200226-fpwr-cmdinj
First Published: 2020 February 26 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvo42633
CVE-2020-3169
CWE-78
CVSS Score:
6.7 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Summary
o A vulnerability in the CLI of Cisco FXOS Software could allow an
authenticated, local attacker to execute arbitrary commands on the
underlying Linux operating system with a privilege level of root on an
affected device.
The vulnerability is due to insufficient validation of arguments passed to
a specific CLI command on the affected device. An attacker could exploit
this vulnerability by including malicious input as the argument of an
affected command. A successful exploit could allow the attacker to execute
arbitrary commands on the underlying Linux operating system with root
privileges. An attacker would need valid administrator credentials to
exploit this vulnerability.
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-20200226-fpwr-cmdinj
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco FXOS Software
running on the following Cisco devices:
Firepower 4100 Series
Firepower 9300 Security 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:
Firepower 1000 Series
Firepower 2100 Series
MDS 9000 Series Multilayer Switches
Nexus 1000 Virtual Edge for VMware vSphere
Nexus 1000V Switch for Microsoft Hyper-V
Nexus 1000V Switch for VMware vSphere
Nexus 3000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Nexus 6000 Series Switches
Nexus 7000 Series Switches
Nexus 9000 Series Fabric Switches in Application Centric Infrastructure
(ACI) mode
Nexus 9000 Series Switches in standalone NX-OS mode
UCS 6200 Series Fabric Interconnects
UCS 6300 Series Fabric Interconnects
UCS 6400 Series Fabric Interconnects
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 and Alerts 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.
Cisco FXOS Software
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.
Firepower 4100 Series and Firepower 9300 Security Appliances: CSCvo42633
Cisco FXOS Software First Fixed Release for This
Release Vulnerability
2.2 2.2.2.97
2.3 2.3.1.144
2.4 2.4.1.234
2.6 Not vulnerable
2.7 Not vulnerable
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-20200226-fpwr-cmdinj
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2020-FEB-26 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=QUsM
-----END PGP SIGNATURE-----