PT-2022-16154 · Discourse · Discourse

Jomaxro · Published 2022-02-15 · Updated 2024-03-06 · CVE-2022-23641

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2.8.1 Discourse version 2.9.0.beta2

Description The issue allows users to trigger a Denial of Service attack by posting a streaming URL. Parsing Oneboxes in the background job triggers an infinite loop, which causes memory leaks.

Recommendations For versions prior to 2.8.1, update to version 2.8.1 or later. For version 2.9.0.beta2, update to a version later than 2.9.0.beta2. As a temporary workaround, consider disabling onebox in the admin panel completely or specify an allow list of domains that will be oneboxed.

Exploit

Fix

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

BIT-DISCOURSE-2022-23641

CVE-2022-23641

GHSA-22XW-F62V-CFXV

Affected Products

Discourse

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23641.json · Exploit
• https://github.com/discourse/discourse/pull/15927 · Patch
• https://github.com/discourse/discourse/commit/a34075d205a8857e29574ffd82aaece0c467565e · Patch
• https://osv.dev/vulnerability/CVE-2022-23641 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-discourse-2022-23641 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-23641 · Security Note
• https://github.com/discourse/discourse/security/advisories/GHSA-22xw-f62v-cfxv · Note
• https://t.me/cibsecurity/37546 · Telegram Post