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Fencer Intel
medium 4.3

CVE-2013-2157 json

OpenStack Keystone Folsom, Grizzly before 2013.1.3, and Havana, when using LDAP with Anonymous binding, allows remote attackers to bypass a…

published 2013-08-20 13 y ago modified 2026-06-16 4 mo ago also EUVD-2013-2122

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

OpenStack Keystone Folsom, Grizzly before 2013.1.3, and Havana, when using LDAP with Anonymous binding, allows remote attackers to bypass authentication via an empty password.

Patch / fix

  • openstack keystone 2013.1.3
  • keystone Debian 14, Debian 13, Debian 12 2013.1.2-1

debian advisories DEBIAN-CVE-2013-2157

  • openstack-keystone openstack 2 2012.2.4-3.el6ost
  • python-keystone openstack 2 2012.2.4-3.el6ost
  • openstack-keystone openstack 3 2013.1.2-2.el6ost
  • python-keystone openstack 3 2013.1.2-2.el6ost

red hat advisories RHSA-2013:1083RHSA-2013:0994

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-2157 updated cvss 5.0

openstack-keystone: Authentication bypass when using LDAP backend

  • Red Hat OpenStack Folsom python-keystone 2012.2.4-3.el6ost, openstack-keystone 2012.2.4-3.el6ost
    fixed: vendor fix RHSA-2013:1083
  • Red Hat Enterprise Linux OpenStack Platform 3.0 python-keystone 2013.1.2-2.el6ost, openstack-keystone 2013.1.2-2.el6ost
    fixed: vendor fix RHSA-2013:0994

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.13% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.