CVE-2022-23527 Open Redirect in oidc_validate_redirect_url()

2022-12-1417:22:30

CWE-601

GitHub_M

www.cve.org

open redirect

oidc_validate_redirect_url

mod_auth_openidc

apache 2.x

http server

vulnerability

patch

oidcredirecturlsallowed

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.0%

JSON

mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.

CNA Affected

[
  {
    "vendor": "zmartzone",
    "product": "mod_auth_openidc",
    "versions": [
      {
        "version": "< 2.4.12.2",
        "status": "affected"
      }
    ]
  }
]