VDB-250558 · CVE-2023-6740 · GCVE-0-2023-6740

Checkmk up to 2.0.0p38/2.1.0p36/2.2.0p16 jar_signature Agent Plugin uncontrolled search path

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.
8.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Checkmk up to 2.0.0p38/2.1.0p36/2.2.0p16. Affected by this vulnerability is an unknown functionality of the component jar_signature Agent Plugin. Executing a manipulation can lead to uncontrolled search path. This vulnerability appears as CVE-2023-6740. The attack requires local access. There is no available exploit. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Checkmk up to 2.0.0p38/2.1.0p36/2.2.0p16. It has been declared as critical. This vulnerability affects an unknown function of the component jar_signature Agent Plugin. The manipulation with an unknown input leads to a uncontrolled search path vulnerability. The CWE definition for the vulnerability is CWE-427. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Privilege escalation in jar_signature agent plugin in Checkmk before 2.2.0p17, 2.1.0p37 and 2.0.0p39 allows local user to escalate privileges

The weakness was presented 01/12/2024. The advisory is available at checkmk.com. This vulnerability was named CVE-2023-6740 since 12/12/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1574 by the MITRE ATT&CK project.

Applying the patch 2.0.0p39/2.1.0p37/2.2.0p17 is able to eliminate this problem.

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Productinfo

Name

Checkmk

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector (Checkmk GmbH): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Uncontrolled search path
CWE: CWE-427 / CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 2.0.0p39/2.1.0p37/2.2.0p17

Timelineinfo

12/12/2023 🔍
01/12/2024 +31 days 🔍
01/12/2024 +0 days 🔍
07/24/2024 +193 days 🔍

Sourcesinfo

Advisory: checkmk.com
Status: Confirmed

CVE: CVE-2023-6740 (🔍)
GCVE (CVE): GCVE-0-2023-6740
GCVE (VulDB): GCVE-100-250558

Entryinfo

Created: 01/12/2024 09:55
Updated: 07/24/2024 01:14
Changes: 01/12/2024 09:55 (48), 02/02/2024 08:47 (11), 07/24/2024 01:14 (15)
Complete: 🔍
Cache ID: 216::103