Advisory Details

August 21st, 2023

SonicWALL GMS Virtual Appliance HttpDigestAuthenticator Authentication Bypass Vulnerability

ZDI-23-1155
ZDI-CAN-21221

CVE ID CVE-2023-34124
CVSS SCORE 6.5, AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
AFFECTED VENDORS SonicWALL
AFFECTED PRODUCTS GMS Virtual Appliance
VULNERABILITY DETAILS

This vulnerability allows remote attackers to bypass authentication on affected installations of SonicWALL GMS Virtual Appliance. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the HttpDigestAuthenticator class. The issue results from a predictable digest credential in the authentication mechanism. 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-2023-0010
DISCLOSURE TIMELINE
  • 2023-06-13 - Vulnerability reported to vendor
  • 2023-08-21 - Coordinated public release of advisory
CREDIT Alex Birnberg of Zymo Security
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