CVE-2024-47070 (GCVE-0-2024-47070)

Vulnerability from cvelistv5 – Published: 2024-09-27 15:18 – Updated: 2024-09-27 17:55
VLAI
Title
authentik vulnerable to password authentication bypass via X-Forwarded-For HTTP header
Summary
authentik is an open-source identity provider. A vulnerability that exists in versions prior to 2024.8.3 and 2024.6.5 allows bypassing password login by adding X-Forwarded-For header with an unparsable IP address, e.g. `a`. This results in a possibility of logging into any account with a known login or email address. The vulnerability requires the authentik instance to trust X-Forwarded-For header provided by the attacker, thus it is not reproducible from external hosts on a properly configured environment. The issue occurs due to the password stage having a policy bound to it, which skips the password stage if the Identification stage is setup to also contain a password stage. Due to the invalid X-Forwarded-For header, which does not get validated to be an IP Address early enough, the exception happens later and the policy fails. The default blueprint doesn't correctly set `failure_result` to `True` on the policy binding meaning that due to this exception the policy returns false and the password stage is skipped. Versions 2024.8.3 and 2024.6.5 fix this issue.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-27 17:53 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
goauthentik authentik Affected: >= 2024.8.0-rc1, < 2024.8.3
Affected: < 2024.6.5
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goauthentik authentik Affected: 0 , < 2024.6.5 (custom)
Affected: 2024.8.0-rc1 , < 2024.8.3 (custom)
    cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*
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