Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability
In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 5 / 5
- KEV catalog (CISA)03 Nov 2021
- Exploited in EUVD (ENISA)03 Nov 2021
- Used by ransomwareyes
- EPSS above 10 %100.00%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply updates per vendor instructions.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.
Affected products
- 7.12.0 <unspecified
- unspecified <7.12.5
- 6.14.0 <unspecified
- unspecified <7.11.6
- unspecified <6.13.23
- 7.5.0 <unspecified
- unspecified <7.4.11
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
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EPSS peak: 100.00%
References
Other exploited vulnerabilities from the same vendor
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- CVE-2021-26086Atlassian Jira Server and Data Center Path Traversal Vulnerability7.5 · Background exploitation
- CVE-2023-22527Atlassian Confluence Data Center and Server Template Injection Vulnerability10.0 · Background exploitation
- CVE-2023-22518Atlassian Confluence Data Center and Server Improper Authorization Vulnerability10.0 · Background exploitation
- CVE-2023-22515Atlassian Confluence Data Center and Server Broken Access Control Vulnerability10.0 · Background exploitation
- CVE-2022-36804Atlassian Bitbucket Server and Data Center Command Injection Vulnerability8.3 · Background exploitation