PAN-OS: Authentication bypass vulnerability in GlobalProtect SSL VPN client certificate verification

An authentication bypass vulnerability exists in the GlobalProtect SSL VPN component of Palo Alto Networks PAN-OS software that allows an attacker to bypass all client certificate checks with an invalid certificate. A remote attacker can successfully authenticate as any user and gain access to restricted VPN network resources when the gateway or portal is configured to rely entirely on certificate-based authentication. Impacted features that use SSL VPN with client certificate verification are: GlobalProtect Gateway, GlobalProtect Portal, GlobalProtect Clientless VPN In configurations where client certificate verification is used in conjunction with other authentication methods, the protections added by the certificate check are ignored as a result of this issue. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.17; PAN-OS 9.0 versions earlier than PAN-OS 9.0.11; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

授权机制不恰当

Palo Alto Networks PAN-OS和GlobalProtect 授权问题漏洞

Palo Alto Networks PAN-OS和GlobalProtect都是美国Palo Alto Networks公司的产品。Palo Alto Networks PAN-OS是一套为其防火墙设备开发的操作系统。GlobalProtect是一套网络防护软件。该软件可提供防火墙监控及威胁预防等功能。 Palo Alto GlobalProtect SSL VPN组件存在授权问题漏洞，该漏洞源于存在一个认证绕过漏洞，攻击者可利用该漏洞绕过所有使用无效证书的客户端证书检查。当网关或门户被配置为完全依赖基

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