VDB-98972 · CVE-2016-9460 · BID 97282

ownCloud Server up to 9.0.3 Files App access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ownCloud Server up to 9.0.3. It has been declared as critical. Impacted is an unknown function of the component Files App. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2016-9460. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in ownCloud Server up to 9.0.3 (Cloud Software). It has been rated as critical. Affected by this issue is some unknown processing of the component Files App. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, and integrity. CVE summarizes:

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are vulnerable to a content-spoofing attack in the files app. The location bar in the files app was not verifying the passed parameters. An attacker could craft an invalid link to a fake directory structure and use this to display an attacker-controlled error message to the user.

The bug was discovered 10/10/2016. The weakness was disclosed 03/28/2017 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2016-9460 since 11/19/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 168 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 9.0.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97282†). The entries VDB-98975, VDB-98974, VDB-98971 and VDB-98973 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Cloud Software

Name

ownCloud Server

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 801810
OpenVAS Name: nextCloud share.js Gallery Application XSS Vulnerability (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ownCloud Server 9.0.4
Patch: github.com

Timelineinfo

07/19/2016 🔍
10/10/2016 +83 days 🔍
11/19/2016 +40 days 🔍
03/27/2017 +128 days 🔍
03/28/2017 +1 days 🔍
03/28/2017 +0 days 🔍
11/22/2022 +2065 days 🔍

Sourcesinfo

Advisory: 2da43e3751576bbc838f238a09955c4dcdebee8e
Status: Not defined

CVE: CVE-2016-9460 (🔍)
GCVE (CVE): GCVE-0-2016-9460
GCVE (VulDB): GCVE-100-98972
SecurityFocus: 97282 - ownCloud and NextCloud CVE-2016-9460 Content Spoofing Vulnerability

See also: 🔍

Entryinfo

Created: 03/28/2017 22:14
Updated: 11/22/2022 16:14
Changes: 03/28/2017 22:14 (65), 12/29/2019 13:24 (3), 11/22/2022 16:14 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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