Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2023-39953

user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available.

Published

2023-08-10T14:15:15.370

Last Modified

2024-11-21T08:16:06.377

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.8 (MEDIUM)

Weaknesses

Type: Primary
CWE-303

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	user_oidc	< 1.3.3	Yes

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j Patch, Vendor Advisory ([email protected])
https://github.com/nextcloud/user_oidc/pull/642 Patch ([email protected])
https://hackerone.com/reports/2021684 Permissions Required ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xx3h-v363-q36j Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/user_oidc/pull/642 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/2021684 Permissions Required (af854a3a-2127-422b-91ae-364da2661108)