Yubico PAM Module before 2.10 performed user authentication when 'use_first_pass' PAM configuration option was not used and the module was configured as 'sufficient' in the PAM configuration. A remote attacker could use this flaw to circumvent common authentication process and obtain access to the account in question by providing a NULL value (pressing Ctrl-D keyboard sequence) as the password string.
Advisories
Source ID Title
EUVD EUVD EUVD-2011-4068 Yubico PAM Module before 2.10 performed user authentication when 'use_first_pass' PAM configuration option was not used and the module was configured as 'sufficient' in the PAM configuration. A remote attacker could use this flaw to circumvent common authentication process and obtain access to the account in question by providing a NULL value (pressing Ctrl-D keyboard sequence) as the password string.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T00:01:50.367Z

Reserved: 2011-10-18T00:00:00

Link: CVE-2011-4120

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-11-26T05:15:13.130

Modified: 2024-11-21T01:31:53.250

Link: CVE-2011-4120

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses