Vulnerability · Published May 26, 2023 · Assigned by GitHub_M

CVE-2023-32319Basic auth header on WebDAV requests is not brute-force protected in Nextcloud

High 8.1

In plain English

A high-severity security flaw in security-advisories from nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.7%top 46.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nextcloud server is an open source personal cloud implementation. Missing brute-force protection on the WebDAV endpoints via the basic auth header allowed to brute-force user credentials when the provided user name was not an email address. Users from version 24.0.0 onward are affected. This issue has been addressed in releases 24.0.11, 25.0.5 and 26.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
nextcloud	security-advisories	>= 24.0.0, < 24.0.11>= 25.0.0, < 25.0.5

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

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mr7q-xf62-fw54 x_refsource_CONFIRM
https://github.com/nextcloud/server/pull/37227 x_refsource_MISC