Polycom BToE Connector up to 2.x plcmbtoesrv.exe, permission

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.
6.4$0-$5k0.00

A vulnerability classified as problematic was found in Polycom BToE Connector up to 2.x. Affected by this vulnerability is an unknown function of the file connector\plcmbtoesrv.exe,. 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:

Polycom BToE Connector before 3.0.0 uses weak permissions (Everyone: Full Control) for "Program Files (x86)\polycom\polycom btoe connector\plcmbtoesrv.exe," which allows local users to gain privileges via a Trojan horse file.

The bug was discovered 11/23/2015. The weakness was published 08/28/2017 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. This vulnerability is known as CVE-2015-8300 since 11/19/2015. An attack has to be approached locally. The successful exploitation requires a single authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 644 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 3.0.0 eliminates this vulnerability.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BToE Connector 3.0.0

Timelineinfo

11/19/2015 🔍
11/23/2015 +4 days 🔍
08/28/2017 +644 days 🔍
08/28/2017 +0 days 🔍
08/29/2017 +1 days 🔍
12/16/2022 +1935 days 🔍

Sourcesinfo

Advisory: 134523
Status: Not defined

CVE: CVE-2015-8300 (🔍)

Entryinfo

Created: 08/29/2017 09:04
Updated: 12/16/2022 18:35
Changes: 08/29/2017 09:04 (53), 11/10/2019 17:55 (7), 12/16/2022 18:35 (4)
Complete: 🔍

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