Description
A flaw was found in pam_access, where certain rules in its configuration file are mistakenly treated as hostnames. This vulnerability allows attackers to trick the system by pretending to be a trusted hostname, gaining unauthorized access. This issue poses a risk for systems that rely on this feature to control who can access certain services or terminals.
Published: 2024-11-07
Score: 7.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Workaround

To reduce the risk, administrators should ensure that no DNS hostname matches local TTY or service names used in pam_access. Additionally, implement DNSSEC to prevent spoofing of DNS responses. For stronger protection, consider reconfiguring pam_access to only accept fully qualified domain names (FQDNs) in access.conf

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-33602 A flaw was found in pam_access, where certain rules in its configuration file are mistakenly treated as hostnames. This vulnerability allows attackers to trick the system by pretending to be a trusted hostname, gaining unauthorized access. This issue poses a risk for systems that rely on this feature to control who can access certain services or terminals.
Ubuntu USN Ubuntu USN USN-7761-1 PAM vulnerability
History

Tue, 11 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.18::el9
References

Tue, 24 Mar 2026 17:15:00 +0000

Type Values Removed Values Added
References

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00181}

 epss

{'score': 0.00185}

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00167}

 epss

{'score': 0.00181}

Sat, 05 Jul 2025 02:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10

Thu, 06 Feb 2025 05:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift Ai
CPEs cpe:/a:redhat:openshift:4 cpe:/a:redhat:enterprise_linux:9::appstream
cpe:/a:redhat:openshift_ai:2.16::el8
cpe:/a:redhat:rhel_eus:9.4::appstream
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:8::baseos
cpe:/o:redhat:enterprise_linux:9::baseos
cpe:/o:redhat:rhel_eus:9.4::baseos
Vendors & Products Redhat openshift Ai
References

Wed, 04 Dec 2024 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.16::el9

Wed, 04 Dec 2024 02:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:openshift:4.17::el9

Tue, 26 Nov 2024 06:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Eus
CPEs cpe:/a:redhat:enterprise_linux:9
cpe:/a:redhat:rhel_eus:9.4
Vendors & Products Redhat rhel Eus

Mon, 11 Nov 2024 18:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in pam_access due to the improper handling of tokens in access.conf, interpreted as hostnames. This flaw allows attackers to bypass access restrictions by spoofing hostnames, undermining configurations designed to limit access to specific TTYs or services. The flaw poses a risk in environments relying on these configurations for local access control. A flaw was found in pam_access, where certain rules in its configuration file are mistakenly treated as hostnames. This vulnerability allows attackers to trick the system by pretending to be a trusted hostname, gaining unauthorized access. This issue poses a risk for systems that rely on this feature to control who can access certain services or terminals.

Fri, 08 Nov 2024 14:45:00 +0000

Type Values Removed Values Added
Metrics threat_severity

Moderate

 threat_severity

Important

Fri, 08 Nov 2024 06:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}

 cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Thu, 07 Nov 2024 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 07 Nov 2024 16:15:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE. A vulnerability was found in pam_access due to the improper handling of tokens in access.conf, interpreted as hostnames. This flaw allows attackers to bypass access restrictions by spoofing hostnames, undermining configurations designed to limit access to specific TTYs or services. The flaw poses a risk in environments relying on these configurations for local access control.
Title pam: Improper Hostname Interpretation in pam_access Leads to Access Control Bypass Pam: improper hostname interpretation in pam_access leads to access control bypass
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References

Thu, 07 Nov 2024 13:30:00 +0000

Type Values Removed Values Added
Description No description is available for this CVE.
Title pam: Improper Hostname Interpretation in pam_access Leads to Access Control Bypass
Weaknesses CWE-287
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}

threat_severity

Moderate

Subscriptions

Redhat Enterprise Linux Openshift Openshift Ai Rhel Eus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-11T14:55:19.030Z

Reserved: 2024-11-07T07:29:13.250Z

Link: CVE-2024-10963

cve-icon Vulnrichment

Updated: 2024-11-07T18:27:37.229Z

cve-icon NVD

Status : Deferred

Published: 2024-11-07T16:15:17.150

Modified: 2026-08-11T16:17:15.063

Link: CVE-2024-10963

cve-icon Redhat

Severity : Important

Publid Date: 2024-11-07T00:00:00Z

Links: CVE-2024-10963 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses