CVE-2023-32691

MEDIUM

go_simple_tunnel < 2.11.5 - Timing Side-Channel Attack via HTTP Header Comparison

Title source: llm
STIX 2.1

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`.

Scores

CVSS v3 5.9
EPSS 0.0057
EPSS Percentile 42.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-203
Status published
Products (2)
ginuerzh/gost 0Go
go_simple_tunnel_project/go_simple_tunnel < 2.11.5
Published May 30, 2023
Tracked Since Feb 18, 2026