CVE-2016-9463
28.03.2017, 02:59
Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.1.2, 9.0.6, and 8.2.9 suffer from SMB User Authentication Bypass. Nextcloud/ownCloud include an optional and not by default enabled SMB authentication component that allows authenticating users against an SMB server. This backend is implemented in a way that tries to connect to a SMB server and if that succeeded consider the user logged-in. The backend did not properly take into account SMB servers that have any kind of anonymous auth configured. This is the default on SMB servers nowadays and allows an unauthenticated attacker to gain access to an account without valid credentials. Note: The SMB backend is disabled by default and requires manual configuration in the Nextcloud/ownCloud config file. If you have not configured the SMB backend then you're not affected by this vulnerability.Enginsight
| Vendor | Product | Version |
|---|---|---|
| nextcloud | nextcloud_server | 𝑥 < 9.0.54 |
| nextcloud | nextcloud_server | 10.0.0 ≤ 𝑥 < 10.0.1 |
| owncloud | owncloud | 8.2.0 ≤ 𝑥 < 8.2.9 |
| owncloud | owncloud | 9.0.0 ≤ 𝑥 < 9.0.4 |
| owncloud | owncloud | 9.1.0 ≤ 𝑥 < 9.1.2 |
𝑥
= Vulnerable software versions
Ubuntu Releases
Common Weakness Enumeration
- CWE-303 - Incorrect Implementation of Authentication AlgorithmThe requirements for the software dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
- CWE-287 - Improper AuthenticationWhen an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.
References