QID 150368

Date Published: 2021-09-27

QID 150368: Atlassian Confluence Server Webwork OGNL Injection RCE Vulnerability (CVE-2021-26084)

An OGNL injection vulnerability CVE-2021-26084 exists in Confluence Server that could allow an authenticated user, and in some instances unauthenticated user, to execute arbitrary code on a Confluence Server or Data Center instance.

Affected versions:
Confluence Server prior to version 6.13.23
Confluence Server version 6.14.0 to 7.4.11
Confluence Server version 7.5.0 to 7.11.6
Confluence Server version 7.12.0 to 7.12.5

QID Detection Logic (Unauthenticated) :
This QID sends a specially-crafted HTTP POST request to "pages/createpage-entervariables.action" and/or "pages/doenterpagevariables.action" with OGNL payload to check if the target is vulnerable.

Successful exploitation of the vulnerability will allow remote attacker to execute arbitrary code on the target system.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Customers are advised to upgrade to latest Atlassian Confluence Server or later versions to remediate this vulnerability.
    Vendor References

    CVEs related to QID 150368

    CVE-2021-26084 |
    Software Advisories
    Advisory ID Software Component Link
    CONFSERVER-67940 URL Logo jira.atlassian.com/browse/CONFSERVER-67940
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