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AUSCERT External Security Bulletin Redistribution
ESB-2020.3479
Cisco Nexus Data Broker Software Path Traversal Vulnerability
8 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Nexus Data Broker Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Modify Arbitrary Files -- Remote with User Interaction
Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3597
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ndb-path-traversal-wVDyXZPy
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Nexus Data Broker Software Path Traversal Vulnerability
Priority: Medium
Advisory ID: cisco-sa-ndb-path-traversal-wVDyXZPy
First Published: 2020 October 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvu98436
CVE-2020-3597
CWE-23
Summary
o A vulnerability in the configuration restore feature of Cisco Nexus Data
Broker software could allow an unauthenticated, remote attacker to perform
a directory traversal attack on an affected device.
The vulnerability is due to insufficient validation of configuration backup
files. An attacker could exploit this vulnerability by persuading an
administrator to restore a crafted configuration backup file. A successful
exploit could allow the attacker to overwrite arbitrary files that are
accessible through the affected software on an 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-ndb-path-traversal-wVDyXZPy
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco Nexus Data
Broker releases 3.9(0) and earlier.
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 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 Cisco would like to thank Lukasz Wierzbicki for reporting this
vulnerability.
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-ndb-path-traversal-wVDyXZPy
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2020-OCT-07 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------END INCLUDED TEXT--------------------
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