Vulnerability · Published Oct 16, 2023 · Assigned by GitHub_M

CVE-2023-45149Password of talk conversations can be bruteforced in Nextcloud

Medium 4.3

In plain English

A medium-severity security flaw in security-advisories from nextcloud. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.6%top 51.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Nextcloud talk is a chat module for the Nextcloud server platform. In affected versions brute force protection of public talk conversation passwords can be bypassed, as there was an endpoint validating the conversation password without registering bruteforce attempts. It is recommended that the Nextcloud Talk app is upgraded to 15.0.8, 16.0.6 or 17.1.1. There are no known workarounds for this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 15.0.0, < 15.0.8>= 16.0.0, < 16.0.6>= 17.0.0, < 17.1.1

Weakness: CWE-307 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7rf8-pqmj-rpqv x_refsource_CONFIRM
https://github.com/nextcloud/spreed/pull/10545 x_refsource_MISC
https://hackerone.com/reports/2094473 x_refsource_MISC