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AUSCERT External Security Bulletin Redistribution
ESB-2020.3034
Cisco Enterprise NFV Infrastructure Software Vulnerabilities
4 September 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Enterprise NFV Infrastructure Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Overwrite Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3478 CVE-2020-3365
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-file-overwrite-UONzPMkr
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-path-emy79OC2
Comment: This bulletin contains two (2) Cisco Systems security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Enterprise NFV Infrastructure Software File Overwrite Vulnerability
Priority: High
Advisory ID: cisco-sa-nfvis-file-overwrite-UONzPMkr
First Published: 2020 September 2 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvs54246
CVE-2020-3478
CWE-20
Summary
o A vulnerability in the REST API of Cisco Enterprise NFV Infrastructure
Software (NFVIS) could allow an authenticated, remote attacker to overwrite
certain files that should be restricted on an affected device.
The vulnerability is due to insufficient authorization enforcement on an
affected system. An attacker could exploit this vulnerability by uploading
a file using the REST API. A successful exploit could allow an attacker to
overwrite and upload files, which could degrade the functionality of the
affected system.
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-nfvis-file-overwrite-UONzPMkr
Affected Products
o Vulnerable Products
This vulnerability affects Cisco Enterprise NFVIS releases 3.5.1 through
4.1.2.
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 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
Cisco fixed this vulnerability in Cisco Enterprise NFVIS releases 4.2.1 and
later.
To download the software from the Software Center on Cisco.com , do the
following:
1. Click Browse all .
2. Choose Routers > Network Functions Virtualization > Enterprise NFV
Infrastructure Software > NFV Infrastructure Software .
3. Choose a release from the left pane of the Enterprise NFV
Infrastructure Software page.
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-nfvis-file-overwrite-UONzPMkr
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2020-SEP-02 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------------------------------------------------------------
Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability
Priority: Medium
Advisory ID: cisco-sa-nfvis-path-emy79OC2
First Published: 2020 September 2 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvs54248
CVE-2020-3365
CWE-22
Summary
o A vulnerability in the directory permissions of Cisco Enterprise NFV
Infrastructure Software (NFVIS) could allow an authenticated, remote
attacker to perform a directory traversal attack on a limited set of
restricted directories.
The vulnerability is due to a flaw in the logic that governs directory
permissions. An attacker could exploit this vulnerability by using
capabilities that are not controlled by the role-based access control
(RBAC) mechanisms of the software. A successful exploit could allow the
attacker to overwrite files on an 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-nfvis-path-emy79OC2
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco Enterprise
NFVIS releases 3.5.1 through 4.1.2.
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.
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.
Fixed Releases
At the time of publication, Cisco Enterprise NFVIS releases 4.2.1 and later
contained the fix for this vulnerability.
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-nfvis-path-emy79OC2
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2020-SEP-02 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------END INCLUDED TEXT--------------------
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