atlassian confluence CVE-2021-43940 vulnerability in Atlassian Products
Published on February 15, 2022

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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.

NVD

Vulnerability Analysis

CVE-2021-43940 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a DLL preloading Vulnerability?

The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.

CVE-2021-43940 has been classified to as a DLL preloading vulnerability or weakness.


Products Associated with CVE-2021-43940

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Atlassian Confluence
 
Atlassian Data Center
 

Affected Versions

Atlassian Confluence Server: Atlassian Confluence Data Center: atlassian confluence_data_center: atlassian confluence_server:

Exploit Probability

EPSS
0.16%
Percentile
36.06%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.