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CVE-2024-47070— authentik vulnerable to password authentication bypass via X-Forwarded-For HTTP header

Quick assessment

Affected
goauthentik authentik
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

authentik是authentik开源的一个开源身份提供应用程序。 authentik存在授权问题漏洞，该漏洞源于允许通过添加带有不可解析IP地址的X-Forwarded-For标头来绕过密码登录，从而可以使用已知登录名或电子邮件地址对任何帐户进行身份验证或授权。

CVSS 9.1 · Critical EPSS 0.57% · P45

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2024-47070

Vulnerability Information
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Vulnerability Title
authentik vulnerable to password authentication bypass via X-Forwarded-For HTTP header
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
authentik 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
authentik是authentik开源的一个开源身份提供应用程序。 authentik存在授权问题漏洞，该漏洞源于允许通过添加带有不可解析IP地址的X-Forwarded-For标头来绕过密码登录，从而可以使用已知登录名或电子邮件地址对任何帐户进行身份验证或授权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
goauthentik authentik >= 2024.8.0-rc1, < 2024.8.3 -

II. Public POCs for CVE-2024-47070

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Qwen3.6-35B-A3B · 9111 chars
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III. Intelligence Information for CVE-2024-47070

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Patches & Fixes for CVE-2024-47070 (2)

Vendor Advisories for CVE-2024-47070 (1)

IV. Related Vulnerabilities

Same product: authentik
Same vendor: goauthentik
Same weakness: CWE-287

V. Comments for CVE-2024-47070

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