Vulnerability Report

CVE-2012-5571

Title: Openstack Essex

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2012-5571.

CWE Category CWE-255
Published Date Dec 18, 2012
Modified Date Apr 29, 2026
Exploit Status Not Found
Score 5.4 CVSS v2.0
Exploit Probability (EPSS)
0.15%

Vulnerability Summary

CVE-2012-5571: A flaw was found in OpenStack Keystone. This vulnerability allows remote authenticated users to bypass intended authorization restrictions. This occurs because OpenStack Keystone does not properly handle EC2 (Elastic Compute Cloud) tokens when a user's role has been removed from a tenant. An attacker can leverage a token associated with a removed user role to gain unauthorized access.

Impacted Vendors

O
openstack 2

Reference Links

http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html http://rhn.redhat.com/errata/RHSA-2012-1556.html http://rhn.redhat.com/errata/RHSA-2012-1557.html http://secunia.com/advisories/51423 http://secunia.com/advisories/51436 http://www.openwall.com/lists/oss-security/2012/11/28/5 http://www.openwall.com/lists/oss-security/2012/11/28/6 http://www.securityfocus.com/bid/56726 http://www.ubuntu.com/usn/USN-1641-1 https://bugs.launchpad.net/keystone/+bug/1064914 https://exchange.xforce.ibmcloud.com/vulnerabilities/80333 https://github.com/openstack/keystone/commit/37308dd4f3e33f7bd0f71d83fd51734d1870713b https://github.com/openstack/keystone/commit/8735009dc5b895db265a1cd573f39f4acfca2a19 https://github.com/openstack/keystone/commit/9d68b40cb9ea818c48152e6c712ff41586ad9653 http://lists.fedoraproject.org/pipermail/package-announce/2012-December/094286.html http://rhn.redhat.com/errata/RHSA-2012-1556.html http://rhn.redhat.com/errata/RHSA-2012-1557.html http://secunia.com/advisories/51423 http://secunia.com/advisories/51436 http://www.openwall.com/lists/oss-security/2012/11/28/5 http://www.openwall.com/lists/oss-security/2012/11/28/6 http://www.securityfocus.com/bid/56726 http://www.ubuntu.com/usn/USN-1641-1 https://bugs.launchpad.net/keystone/+bug/1064914 https://exchange.xforce.ibmcloud.com/vulnerabilities/80333 https://github.com/openstack/keystone/commit/37308dd4f3e33f7bd0f71d83fd51734d1870713b https://github.com/openstack/keystone/commit/8735009dc5b895db265a1cd573f39f4acfca2a19 https://github.com/openstack/keystone/commit/9d68b40cb9ea818c48152e6c712ff41586ad9653
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.4
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
3.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:S/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2012-5571 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected Stack

No specific products linked.