Advisory Details

January 3rd, 2018

Cisco WebEx ARF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-18-007
ZDI-CAN-4913

CVE ID CVE-2018-0103
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Cisco
AFFECTED PRODUCTS WebEx
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable 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 processing of ARF files. Crafted data in an ARF file can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code under the context of the current process.

VENDOR RESPONSE Cisco has issued an update to correct this vulnerability. More details can be found at:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180103-wnrp
DISCLOSURE TIMELINE
  • 2017-07-19 - Vulnerability reported to vendor
  • 2018-01-03 - Coordinated public release of advisory
CREDIT Steven Seeley (mr_me) of Offensive Security
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