Tenable Nessus up to 6.10.4 Agent Mode access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Tenable Nessus 6.10.0/6.10.1/6.10.2/6.10.3/6.10.4. Affected by this issue is some unknown functionality of the component Agent Mode. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2017-7850. The attack needs to be launched locally. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

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 databases at Tenable (100573), SecurityFocus (BID 97952†) and SecurityTracker (ID 1038251†). Similar entry is available at VDB-99759. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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: 🔍

Physical: Partially
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 (🔍)
GCVE (CVE): GCVE-0-2017-7850
GCVE (VulDB): GCVE-100-99760
SecurityFocus: 97952 - Nessus CVE-2017-7850 Local Privilege Escalation Vulnerability
OSVDB: - CVE-2017-7850 - Nessus - Privilege Escalation Issue
SecurityTracker: 1038251

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: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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