VDB-87388 · CVE-2016-2016 · Qualys 185123

Base-VxFS/VxFS ACL Inheritance 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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Base-VxFS and VxFS. This issue affects some unknown processing of the component ACL Inheritance Handler. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2016-2016. There is no available exploit.

Detailsinfo

A vulnerability was found in Base-VxFS and VxFS (version unknown). It has been declared as problematic. This vulnerability affects an unknown function of the component ACL Inheritance Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Base-VxFS-50 B.05.00.01 through B.05.00.02, Base-VxFS-501 B.05.01.0 through B.05.01.03, and Base-VxFS-51 B.05.10.00 through B.05.10.02 on HPE HP-UX 11iv3 with VxFS 5.0, VxFS 5.0.1, and VxFS 5.1SP1 mishandles ACL inheritance for default:class: entries, default:other: entries, and default:user: entries, which allows local users to bypass intended access restrictions by leveraging the configuration of a parent directory.

The weakness was presented 05/14/2016 (Website). The advisory is shared for download at h20564.www2.hpe.com. This vulnerability was named CVE-2016-2016 since 01/22/2016. The exploitation appears to be easy. The attack needs to be approached locally. The successful exploitation requires a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 185123 (HP-UX VxFS Local Unauthorized Files Access Vulnerability (HPSBUX03577)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/22/2016 🔍
05/14/2016 +113 days 🔍
05/14/2016 +0 days 🔍
05/16/2016 +2 days 🔍
10/11/2024 +3070 days 🔍

Sourcesinfo

Advisory: h20564.www2.hpe.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2016 (🔍)
GCVE (CVE): GCVE-0-2016-2016
GCVE (VulDB): GCVE-100-87388
SecurityTracker: 1035816

Entryinfo

Created: 05/16/2016 09:40
Updated: 10/11/2024 12:33
Changes: 05/16/2016 09:40 (53), 11/26/2018 10:09 (2), 08/19/2022 12:52 (3), 10/11/2024 12:33 (16)
Complete: 🔍
Cache ID: 216:29D:103