Description
RustFS is a distributed object storage system built in Rust. From >= 1.0.0-alpha.1 to 1.0.0-alpha.79, invalid RPC signatures cause the server to log the shared HMAC secret (and expected signature), which exposes the secret to log readers and enables forged RPC calls. In crates/ecstore/src/rpc/http_auth.rs, the invalid signature branch logs sensitive data. This log line includes secret and expected_signature, both derived from the shared HMAC key. Any invalidly signed request triggers this path. The function is reachable from RPC and admin request handlers. This vulnerability is fixed in 1.0.0-alpha.80.
Problem types
CWE-532: Insertion of Sensitive Information into Log File
Product status
References
github.com/...rustfs/security/advisories/GHSA-333v-68xh-8mmq
github.com/...ommit/6b2eebee1d07399ef02c0863bd515b4412a5a560
github.com/...05786578aa/crates/ecstore/src/rpc/http_auth.rs