Actively exploited · Published Jun 3, 2022 · Assigned by atlassian
CVE-2022-26134
Critical 9.8 Exploited Ransomware
In plain English
A critical-severity expression language injection in Confluence Data Center from Atlassian. Attackers are actively exploiting it in the wild (listed by CISA on June 2, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 100.0% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, Nuclei, public proof-of-concept code. Immediately block all internet traffic to and from affected products AND apply the update per vendor instructions [https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html] OR remove the affected products by the due date on the right. Note: Once the update is successfully deployed, agencies can reassess the internet blocking rules.
CISA guidance
Immediately block all internet traffic to and from affected products AND apply the update per vendor instructions [https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html] OR remove the affected products by the due date on the right. Note: Once the update is successfully deployed, agencies can reassess the internet blocking rules.
Federal agencies must remediate by Jun 6, 2022.
Official description
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 from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Atlassian | Confluence Data Center | next of 1.3.0 – before unspecifiedunspecified – before 7.4.177.13.0 – before unspecifiedunspecified – before 7.13.77.14.0 – before unspecifiedunspecified – before 7.14.37.15.0 – before unspecifiedunspecified – before 7.15.2 |
| Atlassian | Confluence Server | next of 1.3.0 – before unspecifiedunspecified – before 7.4.177.13.0 – before unspecifiedunspecified – before 7.13.77.14.0 – before unspecifiedunspecified – before 7.14.37.15.0 – before unspecifiedunspecified – before 7.15.2 |
Weakness: CWE-917 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://jira.atlassian.com/browse/CONFSERVER-79016 x_refsource_MISC
- http://packetstormsecurity.com/files/167432/Confluence-OGNL-Injection-Proof-Of-Concept.html x_refsource_MISC
- http://packetstormsecurity.com/files/167430/Confluence-OGNL-Injection-Remote-Code-Execution.html x_refsource_MISC
- http://packetstormsecurity.com/files/167431/Through-The-Wire-CVE-2022-26134-Confluence-Proof-Of-Concept.html x_refsource_MISC
- http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html x_refsource_MISC
- https://confluence.atlassian.com/doc/confluence-security-advisory-2022-06-02-1130377146.html x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26134 government-resource