Advisory Details

May 26th, 2021

Cisco WebEx Network Recording Player ARF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID
CVSS SCORE	3.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
AFFECTED VENDORS	Cisco
AFFECTED PRODUCTS	WebEx
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on affected installations of Cisco WebEx Network Recording 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 parsing of ARF files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
ADDITIONAL DETAILS	https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx79362 https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx82628
DISCLOSURE TIMELINE	2021-03-24 - Vulnerability reported to vendor 2021-05-26 - Coordinated public release of advisory
CREDIT	Mat Powell of Trend Micro Zero Day Initiative

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