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AUSCERT External Security Bulletin Redistribution
ESB-2020.3478
Cisco SD-WAN vManage Cross-Site Scripting Vulnerability
8 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco SD-WAN vManage Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Cross-site Scripting -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-3536
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-xss-xXeLFpC3
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco SD-WAN vManage Cross-Site Scripting Vulnerability
Priority: Medium
Advisory ID: cisco-sa-sdwan-xss-xXeLFpC3
First Published: 2020 October 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds availableCisco Bug IDs: CSCvt77659
CVE-2020-3536
CWE-79
CVSS Score:
6.4 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
Summary
o A vulnerability in the web-based management interface of Cisco SD-WAN
vManage Software could allow an authenticated, remote attacker to conduct a
cross-site scripting (XSS) attack against a user of the interface.
The vulnerability exists because the web-based management interface does
not properly validate user-supplied input. An attacker could exploit this
vulnerability by inserting malicious data into a specific data field in an
affected interface. A successful exploit could allow the attacker to
execute arbitrary script code in the context of the affected interface.
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-sdwan-xss-xXeLFpC3
Affected Products
o Vulnerable Products
At the time of publication, this vulnerability affected Cisco vManage
Software releases earlier than releases 20.1.2 and 20.3.1.
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
At the time of publication, Cisco vManage Software releases 20.1.2 and
later and releases 20.3.1 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 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.
Related to This Advisory
o Cross-Site Scripting
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-sdwan-xss-xXeLFpC3
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2020-OCT-07 |
+----------+---------------------------+----------+--------+--------------+
- --------------------------END INCLUDED TEXT--------------------
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