Advisory Details

September 12th, 2018

Cisco WebEx Recorder and Player ATAS32 Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-18-1027
ZDI-CAN-5712

CVE ID
CVSS SCORE 2.6, AV:N/AC:H/Au:N/C:P/I:N/A:N
AFFECTED VENDORS Cisco
AFFECTED PRODUCTS WebEx
VULNERABILITY DETAILS


This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Cisco WebEx Recorder and Player. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the ATAS32.DLL module. Crafted data in a WRF file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

ADDITIONAL DETAILS


Fixed in WebEx Business Suite T31.23, T32.15 and T33.2, WebEx Meetings Server 3.0MR1, and WebEx Meetings 1.3.35.


DISCLOSURE TIMELINE
  • 2018-03-23 - Vulnerability reported to vendor
  • 2018-09-12 - Coordinated public release of advisory
  • 2018-09-12 - Advisory Updated
CREDIT Steven Seeley (mr_me) of Source Incite
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