CVE-2013-4294 OpenStack Identity (Keystone) allows remote attackers to bypass intended access restrictions via revoked PKI token

What is CVE-2013-4294?

CVE-2013-4294 is a medium-severity authentication bypass vulnerability in n/a, published on 23 Sep 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The (1) mamcache and (2) KVS token backends in OpenStack Identity (Keystone) Folsom 2012.2.x and Grizzly before 2013.1.4 do not properly compare the PKI token revocation list with PKI tokens, which allow remote attackers to bypass intended access restrictions via a revoked PKI token.

Weakness: CWE-264

Which versions are affected by CVE-2013-4294?

3 open source packages ship an affected version, including keystone. It affects 1 product.

Products include Openstack Keystone.

How do I fix CVE-2013-4294?

Upgrade keystone to 2013.1.4 or later.

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

Is CVE-2013-4294 being exploited?

There is no known exploitation of CVE-2013-4294 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2020-12690 Insufficient Session Expiration in OpenStack Keystone High 8.8
• CVE-2019-19687 OpenStack Keystone Credential Leakage High 8.8
• CVE-2026-43001 OpenStack Keystone has an Incorrect Authorization Issue High 7.9
• CVE-2014-2828 OpenStack Identity (Keystone) DoS through V3 API authentication chaining High 7.8
• CVE-2021-38155 OpenStack Keystone allows information disclosure during account locking High 7.5

Sources

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

Also known as DEBIAN-CVE-2013-4294, GHSA-5qpp-v56f-mqfm, PYSEC-2013-42, RHSA-2013:1285.