Ubiquiti UniFi Video 3.7.3 on Windows Directory Permission permission

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Ubiquiti UniFi Video 3.7.3 on Windows. The impacted element is an unknown function of the component Directory Permission Handler. This manipulation causes permission. The identification of this vulnerability is CVE-2016-6914. The attack can only be executed locally. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability has been found in Ubiquiti UniFi Video 3.7.3 on Windows and classified as problematic. Affected by this vulnerability is some unknown processing of the component Directory Permission Handler. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Ubiquiti UniFi Video before 3.8.0 for Windows uses weak permissions for the installation directory, which allows local users to gain SYSTEM privileges via a Trojan horse taskkill.exe file.

The bug was discovered 12/24/2017. The weakness was shared 12/22/2017 by Julien Ahrens (window) as [CVE-2016-6914] Ubiquiti UniFi Video v3.7.3 (Windows) Local Privileges Escalation via Insecure Directory Permissions as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The vendor cooperated in the coordination of the public release. This vulnerability is known as CVE-2016-6914 since 08/22/2016. Attacking locally is a requirement. Required for exploitation is a single authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

A public exploit has been developed by Julien Ahrens and been published immediately after the advisory. It is possible to download the exploit at seclists.org. It is declared as proof-of-concept. The code used by the exploit is:

c:\ProgramData>icacls unifi-video
unifi-video NT AUTHORITY\SYSTEM:(I)(OI)(CI)(F)
BUILTIN\Administrators:(I)(OI)(CI)(F)
CREATOR OWNER:(I)(OI)(CI)(IO)(F)
BUILTIN\Users:(I)(OI)(CI)(RX)
BUILTIN\Users:(I)(CI)(WD,AD,WEA,WA)

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

The vulnerability is also documented in the databases at Exploit-DB (43390) and SecurityFocus (BID 102278†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Researcher Base Score: 7.8
Researcher Vector: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Julien Ahrens
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

08/22/2016 🔍
12/22/2017 +487 days 🔍
12/22/2017 +0 days 🔍
12/22/2017 +0 days 🔍
12/24/2017 +2 days 🔍
12/24/2017 +0 days 🔍
12/27/2017 +3 days 🔍
05/17/2025 +2698 days 🔍

Sourcesinfo

Advisory: [CVE-2016-6914] Ubiquiti UniFi Video v3.7.3 (Windows) Local Privileges Escalation via Insecure Directory Permissions
Researcher: Julien Ahrens (window)
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2016-6914 (🔍)
GCVE (CVE): GCVE-0-2016-6914
GCVE (VulDB): GCVE-100-111019
SecurityFocus: 102278 - Ubiquiti UniFi Video CVE-2016-6914 Local Privilege Escalation Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/24/2017 17:37
Updated: 05/17/2025 21:37
Changes: 12/24/2017 17:37 (78), 12/17/2019 17:01 (4), 05/17/2025 21:37 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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