Vulnerability in Greenpau Caddy-Security
CVE-2024-21495
Versions of the package github.com/greenpau/caddy-security before 1.0.42 are vulnerable to Insecure Randomness due to using an insecure random number generation library which could possibly be predicted via a brute-force search. Attackers could use the potentially predictable nonce value used for authentication purposes in the OAuth flow to conduct OAuth replay attacks. In addition, insecure randomness is used while generating multifactor authentication (MFA) secrets and creating API keys in the database package.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Greenpau Caddy-Security
- Github.com/greenpau/caddy-Security — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6248275 (Third Party Advisory)
- github.com/greenpau/go-authcrunch/commit/ecd3725baf2683eb1519bb3c81ae41085fbf7d… (Patch)
- blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/ (Third Party Advisory)
- github.com/greenpau/caddy-security/issues/265 (Issue Tracking)
Frequently asked questions
- What is CVE-2024-21495?
- CVE-2024-21495 is a medium-severity vulnerability in Greenpau Caddy-Security, classified under Use of Insufficiently Random Values. CVSS score: 6.5/10. Published 2024-02-17.
- How severe is CVE-2024-21495?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2024-21495 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.