FreeIPA cert_revoke access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in FreeIPA and classified as problematic. This impacts an unknown function of the component cert_revoke. Performing a manipulation results in access control. This vulnerability was named CVE-2016-5404. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in FreeIPA (Directory Service Software) (the affected version unknown). This affects an unknown part of the component cert_revoke. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on availability. The summary by CVE is:

The cert_revoke command in FreeIPA does not check for the "revoke certificate" permission, which allows remote authenticated users to revoke arbitrary certificates by leveraging the "retrieve certificate" permission.

The weakness was presented 09/07/2016 with Red Hat (Website). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-5404 since 06/10/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. A authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 93205 (Fedora 23 : freeipa (2016-7898627d08)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236083 (Red Hat Update for ipa (RHSA-2016:1797)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (93205) and SecurityFocus (BID 92525†). See VDB-90720, VDB-91755, VDB-91756 and VDB-91758 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 93205
Nessus Name: Fedora 23 : freeipa (2016-7898627d08)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841815
OpenVAS Name: Fedora Update for freeipa FEDORA-2016-92a3655b70
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: git.fedorahosted.org

Timelineinfo

06/10/2016 🔍
08/17/2016 +68 days 🔍
08/29/2016 +12 days 🔍
08/30/2016 +1 days 🔍
09/07/2016 +8 days 🔍
09/07/2016 +0 days 🔍
09/08/2016 +1 days 🔍
09/26/2024 +2940 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-7898627d08
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5404 (🔍)
GCVE (CVE): GCVE-0-2016-5404
GCVE (VulDB): GCVE-100-91353
SecurityFocus: 92525 - FreeIPA CVE-2016-5404 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/08/2016 21:57
Updated: 09/26/2024 16:32
Changes: 09/08/2016 21:57 (60), 04/12/2019 00:32 (15), 09/15/2022 08:33 (5), 09/15/2022 08:35 (1), 09/26/2024 16:32 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you know our Splunk app?

Download it now for free!