PT-2023-24615 · Briar · Briar

Kenny Paterson + 1 · Published 2023-05-24 · Updated 2025-01-16 · CVE-2023-33981

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:H/A:N

Name of the Vulnerable Software and Affected Versions Briar versions prior to 1.4.22

Description The issue allows attackers to spoof other users' messages in a blog, forum, or private group. However, each spoofed message would need to be an exact duplicate of a legitimate message displayed alongside the spoofed one.

Recommendations For versions prior to 1.4.22, update to version 1.4.22 or later to resolve the issue. As a temporary workaround, consider implementing additional message validation to detect and prevent spoofed messages. Restrict access to sensitive areas of the blog, forum, or private group to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-354

Related Identifiers

CVE-2023-33981

Affected Products

Briar

References · 7

• 🔥 https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf · Exploit
• https://briarproject.org/news/2023-three-security-issues-found-and-fixed · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-33981 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-33981 · Security Note
• https://t.me/cvenotify/107639 · Telegram Post
• https://t.me/cvenotify/51076 · Telegram Post
• https://t.me/cibsecurity/64713 · Telegram Post