PT-2024-18916 · Unknown · Caddy-Security

David Pokora + 2 · Published 2024-02-16 · Updated 2024-12-05 · CVE-2024-21500

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions github.com/greenpau/caddy-security versions all

Description The issue concerns Improper Restriction of Excessive Authentication Attempts via the two-factor authentication (2FA) mechanism. Although the application blocks users after several failed attempts to provide 2FA codes, attackers can bypass this blocking mechanism by automating the application’s full multistep 2FA process.

Recommendations For all versions, consider temporarily disabling the two-factor authentication (2FA) mechanism until a patch is available. Restrict access to the 2FA process to minimize the risk of exploitation. Avoid using automated processes that could trigger the 2FA mechanism excessively until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Restriction of Excessive Authentication Attempts

Weakness Enumeration

CWE-307

Related Identifiers

CVE-2024-21500

GHSA-VFPH-HJFV-CPV2

GO-2024-2563

Affected Products

Caddy-Security

References · 11

• 🔥 https://blog.trailofbits.com/2023/09/18/security-flaws-in-an-sso-plugin-for-caddy · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-21500 · Security Note
• https://osv.dev/vulnerability/GO-2024-2563 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-vfph-hjfv-cpv2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-21500 · Vendor Advisory
• https://github.com/greenpau/caddy-security/issues/271 · Note
• https://github.com/advisories/GHSA-vfph-hjfv-cpv2 · Note
• https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMGREENPAUCADDYSECURITY-6249864 · Note
• https://t.me/cvenotify/103212 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1758743673456517412 · Twitter Post
• https://twitter.com/CVEnew/status/1758721374166884429 · Twitter Post