CVE-2023-32691
MEDIUMgo_simple_tunnel < 2.11.5 - Timing Side-Channel Attack via HTTP Header Comparison
Title source: llmDescription
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`.
References (2)
Core 2
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/ginuerzh/gost/security/advisories/GHSA-qjrq-hm79-49ww
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