MFA Bypass in SonicWall SSL-VPN Active Directory Authentication
CVE-2024-12802 is an authentication bypass vulnerability in SonicWall SSL-VPN appliances that occurs when the appliance is integrated with Microsoft Active Directory and handles User Principal Name (UPN) and SAM account-name logins separately. MFA can be configured independently for each login format rather than being enforced consistently for the underlying identity. In affected configurations, an attacker with valid credentials can authenticate using the alternative account-name format, particularly the UPN login path, and bypass MFA even though MFA appears to be enabled for the account. Reporting indicates this is especially relevant on SonicWall Gen6 SSL-VPN deployments, where firmware patching alone does not fully remediate the issue because the vulnerable LDAP configuration can persist unless six additional manual LDAP reconfiguration steps are completed.
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Recent activity
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An authentication bypass vulnerability in SonicWall SSLVPN appliances that allows attackers to bypass MFA. It is especially significant on Gen 6 devices because firmware patching alone does not fully remediate the issue and additional manual LDAP reconfiguration is required.
An MFA bypass vulnerability affecting SonicWall Gen6 SSL-VPN appliances that can allow attackers with valid VPN credentials to circumvent multi-factor authentication using a specific UPN login format, enabling rapid internal network access and follow-on intrusion activity.
An authentication bypass vulnerability in SonicWall SSL-VPN, particularly affecting Gen6 devices integrated with Microsoft Active Directory, where separate handling of UPN and SAM login formats can allow MFA bypass.
An authentication bypass vulnerability in SonicWall SSL VPN appliances that can silently bypass MFA by abusing an unprotected authentication path. On Gen6 devices, firmware patching alone is insufficient; six additional manual LDAP reconfiguration steps are required for full remediation.
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Cross-references every affected SKU, including bundled OEM variants.
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