mod_auth_openidc up to 2.4.13.1 Cookie OIDCStripCookies null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in mod_auth_openidc up to 2.4.13.1 and classified as problematic. Impacted is an unknown function of the component Cookie Handler. The manipulation of the argument OIDCStripCookies leads to null pointer dereference. This vulnerability is documented as CVE-2023-28625. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in mod_auth_openidc up to 2.4.13.1. It has been rated as problematic. This issue affects an unknown part of the component Cookie Handler. The manipulation of the argument OIDCStripCookies with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

mod_auth_openidc is an authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. In versions 2.0.0 through 2.4.13.1, when `OIDCStripCookies` is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk. Version 2.4.13.2 contains a patch for this issue. As a workaround, avoid using `OIDCStripCookies`.

The weakness was released 04/04/2023 as GHSA-f5xw-rvfr-24qr. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-28625 since 03/20/2023. Technical details are known, but no exploit is available.

Upgrading to version 2.4.13.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch c0e1edac3c4c19988ccdc7713d7aebfce6ff916a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2023-2853). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Open Source CentOS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Gentoo Linux
  • Red Hat OpenShift
  • Meinberg LANTIME

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: mod_auth_openidc 2.4.13.2
Patch: c0e1edac3c4c19988ccdc7713d7aebfce6ff916a

Timelineinfo

03/20/2023 🔍
04/04/2023 +14 days 🔍
04/04/2023 +0 days 🔍
12/31/2025 +1002 days 🔍

Sourcesinfo

Advisory: GHSA-f5xw-rvfr-24qr
Status: Confirmed

CVE: CVE-2023-28625 (🔍)
GCVE (CVE): GCVE-0-2023-28625
GCVE (VulDB): GCVE-100-224801
CERT Bund: WID-SEC-2023-2853 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 04/04/2023 08:29
Updated: 12/31/2025 07:29
Changes: 04/04/2023 08:29 (54), 02/14/2025 04:03 (26), 12/31/2025 07:29 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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