CVE-2014-0249 Auth bypass in n/a

Low 3.3 Published Updated

Local attackers can bypass access restrictions in SSSD due to improper group membership identification, leading to privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2014-0249?

CVE-2014-0249 is a low-severity authentication bypass vulnerability in Redhat Enterprise Linux, published on 11 Jun 2014. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The System Security Services Daemon (SSSD) 1.11.6 does not properly identify group membership when a non-POSIX group is in a group membership chain, which allows local users to bypass access restrictions via unspecified vectors.

Weakness: CWE-264

Which versions are affected by CVE-2014-0249?

It affects 2 products.

Linux distribution packages (40)
libipa_hbac Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libipa_hbac-devel Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libipa_hbac-python Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libsss_idmap Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libsss_idmap-devel Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libsss_nss_idmap Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libsss_nss_idmap-devel Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libsss_nss_idmap-python Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
python-sssdconfig Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-ad Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-client Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-common Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-common-pac Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-dbus Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-debuginfo Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-ipa Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-krb5 Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-krb5-common Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-ldap Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-proxy Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
sssd-tools Red Hat:enterprise_linux:6::clientAll versions0:1.11.6-30.el6
libipa_hbac Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libipa_hbac-devel Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libipa_hbac-python Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libsss_idmap Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libsss_idmap-devel Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libsss_nss_idmap Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libsss_nss_idmap-devel Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
libsss_nss_idmap-python Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
python-sssdconfig Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-ad Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-client Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-common Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-common-pac Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-dbus Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-debuginfo Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-ipa Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6
sssd-krb5 Red Hat:enterprise_linux:6::computenodeAll versions0:1.11.6-30.el6

Products include Fedoraproject Sssd, Redhat Enterprise Linux.

How do I fix CVE-2014-0249?

Apply the vendor's patch.

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

Is CVE-2014-0249 being exploited?

There is no known exploitation of CVE-2014-0249 in the wild and no public exploit code.

All Redhat Enterprise Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-0249, GHSA-2mgv-chq6-566c, RHBA-2014:1375, RHBA-2015:0441, SUSE-SU-2016:2579-1.

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