CVE-2024-21500
MEDIUMcaddy-security - Improper Restriction of Excessive Authentication Attempts via 2FA Bypass
Title source: llmDescription
All versions of the package github.com/greenpau/caddy-security are vulnerable to Improper Restriction of Excessive Authentication Attempts via the two-factor authentication (2FA). Although the application blocks the user after several failed attempts to provide 2FA codes, attackers can bypass this blocking mechanism by automating the application’s full multistep 2FA process.
References (3)
Core 3
Core References
Exploit, Third Party Advisory
https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy/
Issue Tracking
https://github.com/greenpau/caddy-security/issues/271
Third Party Advisory
https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249864
Scores
CVSS v3
4.8
EPSS
0.0053
EPSS Percentile
40.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-307
Status
published
Products (2)
authcrunch/caddy-security
greenpau/caddy-security
0Go
Published
Feb 17, 2024
Tracked Since
Feb 18, 2026