Shibboleth Service Provider up to 3.2.x LDAP Data Connector privileges management

HistoryDiffrelatejsonxmlCTI

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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Shibboleth Service Provider up to 3.2.x. This affects an unknown function of the component LDAP Data Connector. Performing a manipulation results in privileges management. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Shibboleth Service Provider up to 3.2.x. This affects some unknown functionality of the component LDAP Data Connector. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 10/27/2016 by Jeffrey Eaton as secadv_20161027.txt as confirmed advisory (Website). It is possible to read the advisory at shibboleth.net. The public release was coordinated in cooperation with Shibboleth. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 advisory points out:

A flaw in the implementation of the result cache in the LDAP data connector [1] in the attribute resolver can cause results for one search to be substituted for another search, including one associated with a different subject. Depending on the purpose of the search and the attributes involved, this can result in data associated with one user being substituted for another, with critical impact on connected systems, up to and including improper information disclosure.

Upgrading to version 3.3.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1037135†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Not Affected

Shibboleth Service Provider up to 2.x

Productinfo

Vendor

Shibboleth

Name

Service Provider

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Service Provider 3.3.0

Timelineinfo

10/27/2016 🔍
10/27/2016 +0 days 🔍
10/28/2016 +1 days 🔍
10/28/2016 +0 days 🔍
05/19/2019 +933 days 🔍

Sourcesinfo

Advisory: secadv_20161027.txt
Researcher: Jeffrey Eaton
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-93123
SecurityTracker: 1037135

Entryinfo

Created: 10/28/2016 17:04
Updated: 05/19/2019 17:08
Changes: 10/28/2016 17:04 (48), 05/19/2019 17:08 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.