CVE-2021-43940

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

Affected versions of Atlassian Confluence Server and Data Center allow authenticated local attackers to achieve elevated privileges on the local system via a DLL Hijacking vulnerability in the Confluence installer. This vulnerability only affects installations of Confluence Server and Data Center on Windows. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.

Las versiones afectadas de Atlassian Confluence Server y Data Center permiten a los atacantes locales autentificados conseguir privilegios elevados en el sistema local a través de una vulnerabilidad de DLL Hijacking en el instalador de Confluence. Esta vulnerabilidad sólo afecta a las instalaciones de Confluence Server y Data Center en Windows. Las versiones afectadas son anteriores a la versión 7.4.10, y desde la versión 7.5.0 hasta la versión7.12.3

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-11-16 CVE Reserved
2022-02-15 CVE Published
2024-10-08 CVE Updated
2024-10-31 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-427: Uncontrolled Search Path Element

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://jira.atlassian.com/browse/CONFSERVER-66550	2022-07-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Atlassian Search vendor "Atlassian"	Confluence Data Center Search vendor "Atlassian" for product "Confluence Data Center"	< 7.4.10 Search vendor "Atlassian" for product "Confluence Data Center" and version " < 7.4.10"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Atlassian Search vendor "Atlassian"	Confluence Data Center Search vendor "Atlassian" for product "Confluence Data Center"	>= 7.5.0 < 7.12.3 Search vendor "Atlassian" for product "Confluence Data Center" and version " >= 7.5.0 < 7.12.3"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Atlassian Search vendor "Atlassian"	Confluence Server Search vendor "Atlassian" for product "Confluence Server"	< 7.4.10 Search vendor "Atlassian" for product "Confluence Server" and version " < 7.4.10"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Atlassian Search vendor "Atlassian"	Confluence Server Search vendor "Atlassian" for product "Confluence Server"	>= 7.5.0 < 7.12.3 Search vendor "Atlassian" for product "Confluence Server" and version " >= 7.5.0 < 7.12.3"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe