What is the CVSS score of CVE-2016-9461?

CVE-2016-9461 has a CVSS 3.0 base score of 4.3 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.8%.

Is there a public PoC exploit available for CVE-2016-9461?

Yes, a public proof-of-concept exploit is available for CVE-2016-9461. Prioritise patching immediately. EPSS: 0.8%.

Is there a patch available for CVE-2016-9461?

Yes, a patch is available for CVE-2016-9461. Update the affected software to the latest version immediately.

Nextcloud CVE-2016-9461

MEDIUM

Permission Issues (CWE-275)

2017-03-28 support@hackerone.com

Nextcloud Information Disclosure Nextcloud Server Owncloud

4.3

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Mar 28, 2017 - 02:59 cve.org

MEDIUM 4.3

DescriptionCVE.org

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.

AnalysisAI

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-275. Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files. Affected products include: Nextcloud Nextcloud Server, Owncloud. Version information: before 9.0.52.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.