Advisory Details

March 16th, 2021

Siemens Solid Edge Viewer CATPart File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-21-326
ZDI-CAN-11948

CVE ID CVE-2021-22647
CVSS SCORE 7.8, AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AFFECTED VENDORS Siemens
AFFECTED PRODUCTS Solid Edge Viewer
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens Solid Edge Viewer. 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 CATPart files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Siemens has issued an update to correct this vulnerability. More details can be found at:
https://us-cert.cisa.gov/ics/advisories/icsa-21-035-01
DISCLOSURE TIMELINE
  • 2020-10-21 - Vulnerability reported to vendor
  • 2021-03-16 - Coordinated public release of advisory
CREDIT rgod
BACK TO ADVISORIES