Advisory Details

August 23rd, 2022

(Pwn2Own) Softing Secure Integration Server UnZipFolder Directory Traversal Remote Code Execution Vulnerability

ZDI-22-1156
ZDI-CAN-17255

CVE ID CVE-2022-1373
CVSS SCORE 7.2, (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Softing
AFFECTED PRODUCTS Secure Integration Server
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Softing Secure Integration Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the Zip::UnZipFolder method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

ADDITIONAL DETAILS Softing has issued an update to correct this vulnerability. More details can be found at:
https://industrial.softing.com/fileadmin/psirt/downloads/syt-2022-5.html
DISCLOSURE TIMELINE
  • 2022-05-09 - Vulnerability reported to vendor
  • 2022-08-23 - Coordinated public release of advisory
CREDIT Chris Anastasio (muffin) and Steven Seeley (mr_me) of Incite Team
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