CVE-2023-5847

Tenable Nessus Link Following Local Privilege Escalation Vulnerability

Severity Score

7.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

Under certain conditions, a low privileged attacker could load a specially crafted file during installation or upgrade to escalate privileges on Windows and Linux hosts.

Bajo ciertas condiciones, un atacante con pocos privilegios podría cargar un archivo especialmente manipulado durante la instalación o actualización para escalar privilegios en hosts de Windows y Linux.

This vulnerability allows local attackers to escalate privileges on affected installations of Tenable Nessus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the configuration of OpenSSL. The process loads an OpenSSL configuration file from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

*Credits: Xavier DANEST - Decathlon

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-10-30 CVE Reserved
2023-11-01 CVE Published
2024-07-13 EPSS Updated
2024-09-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-269: Improper Privilege Management

CAPEC

CAPEC-233: Privilege Escalation

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.tenable.com/security/tns-2023-37	2023-11-14
https://www.tenable.com/security/tns-2023-38	2023-11-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tenable Search vendor "Tenable"	Nessus Search vendor "Tenable" for product "Nessus"	< 10.6.2 Search vendor "Tenable" for product "Nessus" and version " < 10.6.2"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Tenable Search vendor "Tenable"	Nessus Search vendor "Tenable" for product "Nessus"	< 10.6.2 Search vendor "Tenable" for product "Nessus" and version " < 10.6.2"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Tenable Search vendor "Tenable"	Nessus Agent Search vendor "Tenable" for product "Nessus Agent"	< 10.4.3 Search vendor "Tenable" for product "Nessus Agent" and version " < 10.4.3"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Tenable Search vendor "Tenable"	Nessus Agent Search vendor "Tenable" for product "Nessus Agent"	< 10.4.3 Search vendor "Tenable" for product "Nessus Agent" and version " < 10.4.3"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe