Description
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. In affected Mbed TLS backend versions from 0.31.0 through 0.46.1 and wolfSSL backend versions from 0.33.0 through 0.46.1, when cpp-httplib is built with CPPHTTPLIB_MBEDTLS_SUPPORT or CPPHTTPLIB_WOLFSSL_SUPPORT and a client connects to an IP-literal host with server certificate verification enabled, SSLClient and Client in HTTPS mode skip certificate chain validation and WebSocketClient on the Mbed TLS backend skips verification altogether, allowing a man-in-the-middle attacker positioned to intercept traffic to present a crafted certificate and read or modify the traffic. This issue is fixed in version 0.47.0.
Problem types
CWE-295: Improper Certificate Validation
Product status
References
github.com/...ttplib/security/advisories/GHSA-8ffh-4p95-g3p2
github.com/...ommit/fa981cedae004ea9d946f1392b9dec22fac6fee6
github.com/yhirose/cpp-httplib/releases/tag/v0.47.0