OpenStack Grizzly access control

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability has been found in OpenStack Grizzly (Cloud Software) (version now known) and classified as problematic. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

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.

The weakness was disclosed 11/02/2013 (oss-sec). It is possible to read the advisory at This vulnerability is known as CVE-2013-4477 since 06/12/2013. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 70789 (Fedora 19 : openstack-keystone-2013.1.4-2.fc19 (2013-20373)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (88333) and Tenable (70789). The entries VDB-63261, VDB-63633, VDB-64453 and VDB-64721 are pretty similar.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.1
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Access control
CWE: CWE-264

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 70789
Nessus Name: Fedora 19 : openstack-keystone-2013.1.4-2.fc19 (2013-20373)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867038
OpenVAS Name: Fedora Update for openstack-keystone FEDORA-2013-20373
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


06/12/2013 🔍
10/29/2013 +139 days 🔍
11/02/2013 +4 days 🔍
11/02/2013 +0 days 🔍
11/08/2013 +6 days 🔍
11/19/2013 +11 days 🔍
03/24/2015 +490 days 🔍
01/10/2022 +2484 days 🔍



Advisory: USN-2034-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-4477 (🔍)

X-Force: 88333
Vulnerability Center: 42331 - OpenStack Keystone Grizzly and Havana Local Security Bypass Vulnerability Regarding the LDAP Backend, Low
SecurityFocus: 63395

See also: 🔍


Created: 03/24/2015 03:54 PM
Updated: 01/10/2022 08:21 AM
Changes: 03/24/2015 03:54 PM (62), 05/15/2017 11:42 AM (3), 01/10/2022 08:17 AM (3), 01/10/2022 08:18 AM (1), 01/10/2022 08:21 AM (1)
Complete: 🔍
Cache ID: 34:D55:40


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