CVE-2015-5189

pcs: Incorrect authorization when using pcs web UI

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Race condition in pcsd in PCS 0.9.139 and earlier uses a global variable to validate usernames, which allows remote authenticated users to gain privileges by sending a command that is checked for security after another user is authenticated.

Vulnerabilidad de condición de carrera de pcsd en PCS 0.9.139 y en versiones anteriores utiliza una variable global para validar nombres de usuarios, lo que permite a usuarios remotos autenticados para obtener privilegios mediante el envío de un comando que se comprueba por seguridad tras autenticarse otro usuario.

A race condition was found in the way the pcsd web UI backend performed authorization of user requests. An attacker could use this flaw to send a request that would be evaluated as originating from a different user, potentially allowing the attacker to perform actions with permissions of a more privileged user.

*Credits: N/A

CVSS Scores

NISTv2 4.9

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-01 CVE Reserved
2015-09-02 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-863: Incorrect Authorization

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2015-1700.html	2023-02-13
https://bugzilla.redhat.com/show_bug.cgi?id=1252805	2015-09-01
https://access.redhat.com/security/cve/CVE-2015-5189	2015-09-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pacemaker\/corosync Configuration System Project Search vendor "Pacemaker\/corosync Configuration System Project"		Pacemaker\/corosync Configuration System Search vendor "Pacemaker\/corosync Configuration System Project" for product "Pacemaker\/corosync Configuration System"				<= 0.9.139 Search vendor "Pacemaker\/corosync Configuration System Project" for product "Pacemaker\/corosync Configuration System" and version " <= 0.9.139"		-		Affected