CVE-2011-1758 Auth bypass in n/a

What is CVE-2011-1758?

CVE-2011-1758 is a low-severity authentication bypass vulnerability in n/a, published on 26 May 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The krb5_save_ccname_done function in providers/krb5/krb5_auth.c in System Security Services Daemon (SSSD) 1.5.x before 1.5.7, when automatic ticket renewal and offline authentication are configured, uses a pathname string as a password, which allows local users to bypass Kerberos authentication by listing the /tmp directory to obtain the pathname.

Weakness: CWE-287

Which versions are affected by CVE-2011-1758?

It affects 1 product.

Products include Fedoraproject Sssd.

How do I fix CVE-2011-1758?

Upgrade to a fixed version.

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

Is CVE-2011-1758 being exploited?

There is no known exploitation of CVE-2011-1758 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 GHSA-rqv8-76v6-fcx2.