CVE-2021-43940 Privilege escalation in Confluence Data Center
Authenticated local attackers can achieve elevated privileges on Windows systems via DLL hijacking in the Confluence installer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-43940?
CVE-2021-43940 is a high-severity vulnerability in Atlassian Confluence Data Center, published on 15 Feb 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-427
Which versions are affected by CVE-2021-43940?
It affects 2 products.
Products include Atlassian Confluence Data Center, Atlassian Confluence Server.
How do I fix CVE-2021-43940?
No fix has been published for CVE-2021-43940 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43940 being exploited?
There is no known exploitation of CVE-2021-43940 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Confluence Data Center
- CVE-2023-22527 Atlassian Confluence Data Center and Server Template Injection
- CVE-2023-22518 Atlassian Confluence Data Center and Server Improper Authorization
- CVE-2023-22515 Atlassian Confluence Data Center and Server Broken Access Control
- CVE-2022-26134 Atlassian Confluence Server and Data Center Remote Code Execution
- CVE-2021-26084 Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection
Sources
Also known as GHSA-fv2j-f74f-8cgr.