Discourse vulnerable to RCE via admins uploading maliciously zipped file
CVE-2022-36066

9.1CRITICAL

Key Information:

Vendor
Discourse
Status
Discourse
Vendor
CVE Published:
29 September 2022

Summary

Discourse is an open source discussion platform. In versions prior to 2.8.9 on the stable branch and prior to 2.9.0.beta10 on the beta and tests-passed branches, admins can upload a maliciously crafted Zip or Gzip Tar archive to write files at arbitrary locations and trigger remote code execution. The problem is patched in version 2.8.9 on the stable branch and version 2.9.0.beta10 on the beta and tests-passed branches. There are no known workarounds.

Affected Version(s)

discourse < 2.8.9 < 2.8.9

discourse >= 2.9.0.beta0, < 2.9.0.beta10 < 2.9.0.beta0, 2.9.0.beta10

References

https://github.com/discourse/discourse/security/advisorie...
x_refsource_CONFIRM
https://github.com/discourse/discourse/pull/18421
x_refsource_MISC
https://github.com/discourse/discourse/commit/b27d5626d20...
x_refsource_MISC

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.