Boringproxy
Monthly
Newline injection in boringproxy 0.10.0 and earlier allows authenticated low-privileged users with tunnel-creation permission to write arbitrary entries into the server's SSH authorized_keys file, achieving persistent shell access to the host. By supplying a percent-encoded newline (%0a) in the domain parameter of the tunnel creation API endpoint, an attacker inserts an unrestricted public key, then SSHs directly into the server and reads plaintext credentials - including all user tokens, tunnel private keys, and TLS certificates - from the application's database file. A public proof-of-concept exploit is available via GitHub, and no patched release has been identified at time of analysis.
Newline injection in boringproxy 0.10.0 and earlier allows authenticated low-privileged users with tunnel-creation permission to write arbitrary entries into the server's SSH authorized_keys file, achieving persistent shell access to the host. By supplying a percent-encoded newline (%0a) in the domain parameter of the tunnel creation API endpoint, an attacker inserts an unrestricted public key, then SSHs directly into the server and reads plaintext credentials - including all user tokens, tunnel private keys, and TLS certificates - from the application's database file. A public proof-of-concept exploit is available via GitHub, and no patched release has been identified at time of analysis.