Vulnerability in Ginuerzh Gost
CVE-2023-32691
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`.
EPSS: 0.006 (44.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N.
Affected products
- Ginuerzh Gost — versions <= 2.11.5
- Go_simple_tunnel_project Go_simple_tunnel
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-32691?
- CVE-2023-32691 is a medium-severity vulnerability in Ginuerzh Gost, classified under Observable Discrepancy. CVSS score: 5.9/10. Published 2023-05-30.
- How severe is CVE-2023-32691?
- Medium severity. CVSS v3 base score is 5.9 out of 10.