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AUSCERT External Security Bulletin Redistribution
ESB-2017.2500
Cisco Meeting App Local Privilege Escalation Vulnerability Medium
5 October 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Meeting App
Publisher: Cisco Systems
Operating System: Windows
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12266
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-cma
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Cisco Meeting App Local Privilege Escalation Vulnerability Medium
Advisory ID:
cisco-sa-20171004-cma
First Published:
2017 October 4 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCvd77907
CVSS Score:
Base 4.2
CVE-2017-12266
CWE-264
Summary
A vulnerability in the routine that loads DLL files in Cisco Meeting App for
Windows could allow an authenticated, local attacker to run an executable file
with privileges equivalent to those of Cisco Meeting App.
The vulnerability is due to incomplete input validation of the path name for
DLL files before they are loaded. An attacker could exploit this vulnerability
by installing a crafted DLL file in a specific system directory. A successful
exploit could allow the attacker to execute commands on the underlying
Microsoft Windows host with privileges equivalent to those of Cisco Meeting
App. The attacker would need valid user credentials to exploit 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-20171004-cma
Affected Products
Vulnerable Products
This vulnerability affects Cisco Meeting App. For information about affected
software releases, consult the Cisco bug ID(s) at the top of this advisory.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
vulnerability.
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.
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.
Exploitation and Public Announcements
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
Cisco would like to thank a security researcher in ADLab of VenusTech for
finding and reporting this vulnerability
URL
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-cma
Revision History
Version Description Section Status Date
1.0 Initial public release. - Final 2017-October-04
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