CVE-2010-2940 Auth bypass in n/a

What is CVE-2010-2940?

CVE-2010-2940 is a medium-severity authentication bypass vulnerability in n/a, published on 30 Aug 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The auth_send function in providers/ldap/ldap_auth.c in System Security Services Daemon (SSSD) 1.3.0, when LDAP authentication and anonymous bind are enabled, allows remote attackers to bypass the authentication requirements of pam_authenticate via an empty password.

Weakness: CWE-287

Which versions are affected by CVE-2010-2940?

It affects 1 product.

Products include Fedoraproject Sssd.

How do I fix CVE-2010-2940?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2010-2940 being exploited?

There is no known exploitation of CVE-2010-2940 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2022-4254 Other in SSSD High 8.8
• CVE-2012-3462 Auth bypass in sssd High 8.8
• CVE-2026-104048 Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation Medium 6.8
• CVE-2015-5292 Denial of service in n/a Medium 6.8
• CVE-2026-12610 Sssd: use-after-free crash in sssd' 'sssd_pam' process Medium 6.4

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2010-2940, GHSA-x9m9-3w3m-hrf4.