Tenable Nessus 6.10.0/6.10.1/6.10.2/6.10.3/6.10.4 Agent Mode 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.
7.0$0-$5k0.00

A vulnerability has been found in Tenable Nessus 6.10.0/6.10.1/6.10.2/6.10.3/6.10.4 (Security Testing Software) and classified as critical. This vulnerability affects an unknown part of the component Agent Mode. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Nessus 6.10.x before 6.10.5 was found to be vulnerable to a local privilege escalation issue due to insecure permissions when running in Agent Mode.

The bug was discovered 04/11/2017. The weakness was published 04/11/2017 as TNS-2017-10 as confirmed advisory (Website). The advisory is shared for download at tenable.com. This vulnerability was named CVE-2017-7850 since 04/12/2017. The attack needs to be approached locally. A single authentication is necessary for exploitation. Technical details are unknown but a private exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100573 (Tenable Nessus Agent 6.10.x < 6.10.5 Multiple Vulnerabilities (TNS-2017-10)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context l.

Upgrading to version 6.10.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100573). Similar entry is available at VDB-99759.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Vendor Base Score (Tenable): 🔍
NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100573
Nessus Name: Tenable Nessus Agent 6.10.x < 6.10.5 Multiple Vulnerabilities (TNS-2017-10)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Nessus 6.10.5

Timelineinfo

04/05/2017 🔍
04/11/2017 +6 days 🔍
04/11/2017 +0 days 🔍
04/11/2017 +0 days 🔍
04/12/2017 +1 days 🔍
04/13/2017 +1 days 🔍
04/13/2017 +0 days 🔍
04/19/2017 +6 days 🔍
04/19/2017 +0 days 🔍
06/01/2017 +43 days 🔍
09/17/2020 +1204 days 🔍

Sourcesinfo

Advisory: TNS-2017-10
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7850 (🔍)
SecurityTracker: 1038251
SecurityFocus: 97952 - Nessus CVE-2017-7850 Local Privilege Escalation Vulnerability
OSVDB: - CVE-2017-7850 - Nessus - Privilege Escalation Issue

scip Labs: https://www.scip.ch/en/?labs.20091204
See also: 🔍

Entryinfo

Created: 04/13/2017 17:05
Updated: 09/17/2020 18:12
Changes: 04/13/2017 17:05 (86), 09/17/2020 18:12 (6)
Complete: 🔍
Cache ID: 18:A26:103

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