Cisco WebEx Recording Format Player Memory Corruption Arbitrary Code Execution Vulnerability
Threat Type:
Unintended Weakness: Arbitrary Code Execution
IntelliShield ID:
26209
Version:
1
First Published:
2012 June 27 16:28 GMT
Last Published:
2012 June 27 16:28 GMT
Port:
Not Available
CVE:
CVE-2012-3056
Urgency:
Unlikely Use
Credibility:
Confirmed
Severity:
Moderate Damage
Version Summary:
Cisco WebEx Recording Format Player contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. Updates are available.
Description
Cisco WebEx Recording Format Player contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.
The vulnerability is due to improper memory operations performed by the affected software. An unauthenticated, remote attacker could exploit the vulnerability by convincing a user to view a website that is designed to pass a malicious WebEx Recording Format (.wrf ) file to the affected software. If successful, the attacker could execute arbitrary code on the system.
Cisco has confirmed the vulnerability in a security advisory and released software updates.
Warning Indicators
The following Cisco WebEx Recording Format players on Microsoft Windows, Apple Mac OS X, and Linux platforms are vulnerable:
Client builds T28 L 10N
Client builds T27 LD SP32 CP1 and prior
Client builds T27 LC SP25 EP10 and prior
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a file to the user and persuade the user to open or execute the file by using misleading language or instructions.
Users who are attending a WebEx meeting are not affected by this vulnerability.
Cisco indicates through the CVSS score that proof-of-concept exploit code exists; however, the code is not known to be publicly available.
An unauthenticated, remote attacker could exploit the vulnerability to execute arbitrary code on a targeted system with the privileges of the user. If the user holds elevated privileges, a successful exploit could result in a complete system compromise.
Technical Information
The vulnerability is due to improper memory operations performed when the affected software attempts to process malicious .wrf files.
An unauthenticated, remote attacker could exploit the vulnerability by convincing a user to view a website that is designed to pass malicious .wrf input to the affected software. When processed, the input could cause memory corruption errors in the affected software. The attacker could use the memory corruption to execute arbitrary code on the system with the privileges of the user.
Safeguards
Administrators are advised to apply the appropriate updates.
Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.
Administrators are advised to monitor critical systems.
Patches/Software
Cisco recommends that users upgrade to the current version of the WebEx WRF Player and Recording Editor, which is available at the following link: WebEx
Signatures
Cisco Systems Cisco Intrusion Prevention System (IPS) 6.0
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LEGAL DISCLAIMER The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
