What’s Vulnerable › Vulnerabilities

CVE-2024-6592: WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-25 · updated 2026-08-08
• Weakness: CWE-306

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

• WatchGuard AuthPoint Authentication Gateway: through 12.10.2
• WatchGuard SSO Client: through 12.5.4; through 12.7

References

• https://psirt.watchguard.com/CVE-2024-6592
• https://www.redteam-pentesting.de/advisories/rt-sa-2024-006
• https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00014

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