Advisory Details

September 7th, 2023

Synology RT6600ax uistrings.cgi Path Traversal Information Disclosure Vulnerability

ZDI-23-1341
ZDI-CAN-19743

CVE ID CVE-2023-41740
CVSS SCORE 4.3, AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AFFECTED VENDORS Synology
AFFECTED PRODUCTS RT6600ax
VULNERABILITY DETAILS

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Synology RT6600ax routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the uistrings.cgi file. 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 disclose information in the context of the current process.

ADDITIONAL DETAILS Synology has issued an update to correct this vulnerability. More details can be found at:
https://www.synology.com/en-global/security/advisory/Synology_SA_23_10
DISCLOSURE TIMELINE
  • 2022-12-02 - Vulnerability reported to vendor
  • 2023-09-07 - Coordinated public release of advisory
CREDIT Discovered by: Claroty Research - Vera Mens, Noam Moshe, Uri Katz, Sharon Brizinov
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