CVE-2015-1796

Java: PKIX Trust Engines Exhibit Critical Flaw In Trusted Names Evaluation

Severity Score

4.3

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.

Los motores de confianza PKIX en Shibboleth Identity Provider anterior a 2.4.4 y OpenSAML Java (OpenSAML-J) anterior a 2.6.5 confían en los certificados X.509 de candidatos cuando nombres no confiables están disponibles para el identificador de entidad, lo que permite a atacantes remotos suplantar una entidad a través de un certificado emitido por una ancla de confianza shibmd:KeyAuthority.

It was found that PKIX trust components allowed an X.509 credential to be trusted if no trusted names were available for the entityID. An attacker could use a certificate issued by a shibmd:KeyAuthority trust anchor to impersonate an entity within the scope of that keyAuthority.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-02-17 CVE Reserved
2015-06-23 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-254: 7PK - Security Features

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/75370	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2015-1176.html	2016-11-30
http://rhn.redhat.com/errata/RHSA-2015-1177.html	2016-11-30
https://shibboleth.net/community/advisories/secadv_20150225.txt	2016-11-30
https://access.redhat.com/security/cve/CVE-2015-1796	2015-06-23
https://bugzilla.redhat.com/show_bug.cgi?id=1196619	2015-06-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Shibboleth Search vendor "Shibboleth"		Identity Provider Search vendor "Shibboleth" for product "Identity Provider"				<= 2.4.3 Search vendor "Shibboleth" for product "Identity Provider" and version " <= 2.4.3"		-		Affected
Shibboleth Search vendor "Shibboleth"		Opensaml Java Search vendor "Shibboleth" for product "Opensaml Java"				<= 2.6.4 Search vendor "Shibboleth" for product "Opensaml Java" and version " <= 2.6.4"		-		Affected