Zip Slip with Mutual Tls

How Zip Slip Manifests in Mutual Tls

Zip Slip vulnerabilities in Mutual Tls environments exploit the trust established between client and server certificates to bypass security controls. When a Mutual Tls service processes zip archives from authenticated clients, attackers can leverage the trusted connection to upload malicious archives containing path traversal sequences.

 

Mutual Tls-Specific Detection

Detecting Zip Slip in Mutual Tls environments requires examining both the TLS handshake and file processing logic. The vulnerability exists when Mutual Tls authentication is used without proper input validation on extracted file paths.

middleBrick's scanning approach for Mutual Tls services includes: