Atlassian Confluence - Remote Code Execution (CVE-2021-26084)
- Severity
- CVSSv3 Score
- 9.8
- Vulnerability description
Atlassian Confluence is affected by a Remote Code Execution, located on the createpage-entervariables.action endpoint. Versions lower than 7.12.5 are vulnerable to this OGNL Injection vulnerability. This allows a malicious user to execute arbitrary code on the server.
- Risk description
The risk exists that a remote unauthenticated attacker can fully compromise the Confluence Server in order to steal confidential information, install ransomware or pivot to the internal network.
- Exploit capabilities
Sniper can gain unauthenticated Remote Code Execution on the target system and extract multiple artefacts as evidence.
- Recommendation
Upgrade the Confluence server to a version higher than 7.12.5.
- References
https://nvd.nist.gov/vuln/detail/CVE-2021-26084
https://confluence.atlassian.com/doc/confluence-security-advisory-2021-08-25-1077906215.html
- Codename
- Not available
- Detectable with
- Network Scanner
- Exploitable with Sniper
- Yes
- Vuln date
- Aug 2021
- Published at
- Updated at
- Software Type
- Collaboration software
- Vendor
- Atlassian
- Product
- Confluence