copyfail-rs

copyfail-rs is a cybersecurity tool that provides multi-vector proof-of-concept (PoC) exploitation and detection for CVE-2026-31431, specifically targeting vulnerabilities in PAM authentication systems. Its notable features include a unique PAM auth-bypass vector and a detection mechanism that identifies alterations in critical files that traditional file integrity monitoring solutions overlook, using a novel hashing approach that differentiates between actual disk state and memory cache mutations. This tool operates as a single static binary with no runtime dependencies, making it easily deployable across various Linux architectures.