SonicWALL NSv Authentication Bypass Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to bypass authentication on affected installations of SonicWALL NSv. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of Base64-encoded session cookies. The issue results from an incorrect implementation of an authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system.
Additional Details
SonicWALL has issued an update to correct this vulnerability. More details can be found at:
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0003
Disclosure Timeline
- 2024-11-05 - Vulnerability reported to vendor
- 2025-01-09 - Coordinated public release of advisory
- 2025-01-09 - Advisory Updated
Credit
Daan Keuper, Thijs Alkemade and Khaled Nassar of Computest Security
