CVE-2023-32691 Information

Description

gost (GO Simple Tunnel) is a simple tunnel written in golang. Sensitive secrets such as passwords token and API keys should be compared only using a constant-time comparison function. Untrusted input sourced from a HTTP header is compared directly with a secret. Since this comparison is not secure an attacker can mount a side-channel timing attack to guess the password. As a workaround this can be easily fixed using a constant time comparing function such as crypto/subtle’s ConstantTimeCompare.

Reference

https://github.com/ginuerzh/gost/blob/1c62376e0880e4094bd3731e06bd4f7842638f6a/auth.go#L46 https://github.com/ginuerzh/gost/security/advisories/GHSA-qjrq-hm79-49ww