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Critical · 9.3 Public exploit CVE-2024-6592 EUVD-2024-47657GHSA-fgxf-657w-ggqj

WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass

Published Sep 25, 2024 · Updated Aug 7, 2026 · Assigned by WatchGuard

Vendor: WatchGuard Product: SSO Agent Product: SSO Client

Description

An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components.

In the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.

Affected products

VendorProductAffectedFixed
WatchGuard SSO Client 12.0 – ≤ 12.7, 12.0 – ≤ 12.5.4 —
WatchGuard SSO Agent 12.0 – ≤ 12.10.2 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • RedTeamPentesting/watchguard-sso-client ★ 3 · Sep 17, 2024

    Client Implementation for the WatchGuard SSO Agent Protocol used for Security Research (CVE-2024-6592, CVE-2024-6593, CVE-2024-6594)

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References