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AUSCERT External Security Bulletin Redistribution
ESB-2020.0606
Cisco Enterprise NFV Infrastructure Software Remote Code
Execution Vulnerability
21 February 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Enterprise NFV Infrastructure Software
Publisher: Cisco Systems
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3138
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-codex-shs4NhvS
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Cisco Enterprise NFV Infrastructure Software Remote Code Execution
Vulnerability
Priority: Medium
Advisory ID: cisco-sa-nfvis-codex-shs4NhvS
First Published: 2020 February 19 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvr73802
CVE-2020-3138
CWE-347
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 upgrade component of Cisco Enterprise NFV
Infrastructure Software (NFVIS) could allow an authenticated, local
attacker to install a malicious file when upgrading.
The vulnerability is due to insufficient signature validation. An attacker
could exploit this vulnerability by providing a crafted upgrade file. A
successful exploit could allow the attacker to upload crafted code to the
affected device.
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-nfvis-codex-shs4NhvS
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco NFVIS
releases 3.11.1 and earlier.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
o This vulnerability can be mitigated by manually verifying the upgrade
hashes with the published hashes on the official Cisco website before
upgrading.
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.
Fixed Releases
For information about fixed software releases, see the Details section in
the bug ID(s) at the top of 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 during the resolution of a Cisco TAC support
case.
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-nfvis-codex-shs4NhvS
Revision History
o +---------+-------------------------+---------+--------+------------------+
| Version | Description | Section | Status | Date |
+---------+-------------------------+---------+--------+------------------+
| 1.0 | Initial public release. | - | Draft | 2020-February-19 |
+---------+-------------------------+---------+--------+------------------+
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