PT-2023-29439 · Nextcloud · Nextcloud Talk

Nickvergessen · Published 2023-10-16 · Updated 2023-10-20 · CVE-2023-45149

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Talk versions prior to 15.0.8 Nextcloud Talk versions prior to 16.0.6 Nextcloud Talk versions prior to 17.1.1

Description The issue concerns the brute force protection of public talk conversation passwords in Nextcloud Talk, a chat module for the Nextcloud server platform. In affected versions, this protection can be bypassed due to an endpoint validating the conversation password without registering brute force attempts.

Recommendations For versions prior to 15.0.8, upgrade to version 15.0.8. For versions prior to 16.0.6, upgrade to version 16.0.6. For versions prior to 17.1.1, upgrade to version 17.1.1.

Exploit

Fix

Improper Restriction of Excessive Authentication Attempts

Weakness Enumeration

CWE-307

Related Identifiers

CVE-2023-45149

GHSA-7RF8-PQMJ-RPQV

Affected Products

Nextcloud Talk

References · 9

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45149.json · Exploit
• https://github.com/nextcloud/spreed/pull/10545 · Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7rf8-pqmj-rpqv · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-45149 · Security Note
• https://osv.dev/vulnerability/CVE-2023-45149 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1714051473921749087 · Twitter Post
• https://twitter.com/CVEnew/status/1713996723037556889 · Twitter Post
• https://hackerone.com/reports/2094473 · Note
• https://t.me/cibsecurity/72359 · Telegram Post