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Fencer Intel
low 3.3

CVE-2013-4477 json

OpenStack Identity Keystone Privilege Escalation vulnerability

published 13y ago modified 4mo ago also GHSA-f889-wfwm-6p7m , PYSEC-2026-831 , EUVD-2022-3724

cvss
3.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

The LDAP backend in OpenStack Identity (Keystone) Grizzly and Havana, when removing a role on a tenant for a user who does not have that role, adds the role to the user, which allows local users to gain privileges.

Patch / fix

  • pypi keystone 8.0.0a0
  • keystone Debian 14, Debian 13, Debian 12 2013.2-2

debian advisories DEBIAN-CVE-2013-4477

  • openstack-keystone openstack 3 2013.1.4-2.el6ost
  • python-keystone openstack 3 2013.1.4-2.el6ost

red hat advisories RHSA-2014:0113

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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-2013-4477 updated cvss 4.9

openstack-keystone: unintentional role granting with Keystone LDAP backend

  • Red Hat OpenStack Platform 4 openstack-keystone
    affected: no fix available
  • Red Hat Enterprise Linux OpenStack Platform 3.0 python-keystone 2013.1.4-2.el6ost, openstack-keystone 2013.1.4-2.el6ost
    fixed: vendor fix RHSA-2014:0113

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

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugs.launchpad.net https://bugs.launchpad.net/keystone/+bug/1242855 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 3.3 AV:L/AC:M/Au:N/C:P/I:P/A:N

Affected packages

ecosystem package affected fixed in
pypi keystone
<8.0.0a0
8.0.0a0

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.