PT-2023-26565 · Unknown · Matrix-Appservice-Irc

Val Lorentz · Published 2023-08-04 · Updated 2023-08-11 · CVE-2023-38700

Positive Technologies (AI Summary)

CVSS v3.1

3.5

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions matrix-appservice-irc versions prior to 1.0.1

Description The issue allows an attacker to craft an event that leaks part of a targeted message event from another bridged room, requiring knowledge of an event ID to target.

Recommendations For versions prior to 1.0.1, upgrade to version 1.0.1. As a temporary workaround, consider setting the matrixHandler.eventCacheSize config value to 0, although this may impact performance.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2023-38700

GHSA-C7HH-3V6C-FJ4Q

Affected Products

Matrix-Appservice-Irc

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/38xxx/CVE-2023-38700.json · Exploit
• https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-c7hh-3v6c-fj4q · Vendor Advisory
• https://github.com/matrix-org/matrix-appservice-irc/commit/8bbd2b69a16cbcbeffdd9b5c973fd89d61498d75 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-38700 · Security Note
• https://osv.dev/vulnerability/CVE-2023-38700 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-c7hh-3v6c-fj4q · Vendor Advisory
• https://github.com/matrix-org/matrix-appservice-irc · Note
• https://github.com/matrix-org/matrix-appservice-irc/releases/tag/1.0.1 · Note
• https://t.me/cibsecurity/67794 · Telegram Post