Advisory Details

September 8th, 2015

Moxa SoftCMS RTSPVIDEO.rtspvideoCtrl.1 AudioRecord Method ip Argument Remote Code Execution Vulnerability

ZDI-15-433
ZDI-CAN-2952

CVE ID CVE-2015-6458
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Moxa
AFFECTED PRODUCTS SoftCMS
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Moxa SoftCMS. 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 AudioRecord method in the RTSPVIDEO ActiveX control. The implementation copies the user-supplied string for the ip parameter to a fixed-size stack buffer without validating its size, which can lead to a stack buffer overflow. An attacker can leverage this vulnerability to execute arbitrary code under the context of the process.
ADDITIONAL DETAILS Moxa has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-15-239-01
DISCLOSURE TIMELINE
  • 2015-05-28 - Vulnerability reported to vendor
  • 2015-09-08 - Coordinated public release of advisory
CREDIT Carsten Eiram - Risk Based Security
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