CVE-2021-43850

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Summary

CVECVE-2021-43850
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-01-04 20:15:00 UTC
Updated2022-01-14 02:50:00 UTC
DescriptionDiscourse is an open source platform for community discussion. In affected versions admins users can trigger a Denial of Service attack via the `/message-bus/_diagnostics` path. The impact of this vulnerability is greater on multisite Discourse instances (where multiple forums are served from a single application server) where any admin user on any of the forums are able to visit the `/message-bus/_diagnostics` path. The problem has been patched. Please upgrade to 2.8.0.beta10 or 2.7.12. No workarounds for this issue exist.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Discourse Discourse All All All All
Application Discourse Discourse 2.8.0 beta1 All All
Application Discourse Discourse 2.8.0 beta2 All All
Application Discourse Discourse 2.8.0 beta3 All All
Application Discourse Discourse 2.8.0 beta4 All All
Application Discourse Discourse 2.8.0 beta5 All All
Application Discourse Discourse 2.8.0 beta6 All All
Application Discourse Discourse 2.8.0 beta7 All All
Application Discourse Discourse 2.8.0 beta8 All All
Application Discourse Discourse 2.8.0 beta9 All All

References

ReferenceSourceLinkTags
SECURITY: Disable MessageBus::Diagnostics. · discourse/discourse@7a8ec12 · GitHub MISC github.com
MessageBus::Diagnostics route susceptible to DoS · Advisory · discourse/discourse · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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