Advisory Details

January 10th, 2022

Siemens syngo DCM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-22-021
ZDI-CAN-15097

CVE ID CVE-2021-40367
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 syngo fastView
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens syngo. 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 DCM files. Crafted data in a DCM file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS

https://www.siemens-healthineers.com/support-documentation/cybersecurity/shsa-688797
https://www.cisa.gov/uscert/ics/advisories/icsa-21-350-16


DISCLOSURE TIMELINE
  • 2021-09-01 - Vulnerability reported to vendor
  • 2022-01-10 - Coordinated public release of advisory
CREDIT Tran Van Khang - khangkito (VinCSS)
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