VDB-250556 · CVE-2023-31211 · GCVE-0-2023-31211

Checkmk up to 2.0.0p38/2.1.0p36/2.2.0p16 Authentication insufficient control flow management

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.
7.6	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Checkmk up to 2.0.0p38/2.1.0p36/2.2.0p16. This impacts an unknown function of the component Authentication. Such manipulation leads to insufficient control flow management. This vulnerability is documented as CVE-2023-31211. The attack needs to be performed locally. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Checkmk up to 2.0.0p38/2.1.0p36/2.2.0p16 and classified as critical. Affected by this issue is an unknown code block of the component Authentication. The manipulation with an unknown input leads to a insufficient control flow management vulnerability. Using CWE to declare the problem leads to CWE-691. The code does not sufficiently manage its control flow during execution, creating conditions in which the control flow can be modified in unexpected ways. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Insufficient authentication flow in Checkmk before 2.2.0p17, 2.1.0p37 and 2.0.0p39 allows attacker to use locked credentials

The weakness was released 01/12/2024. The advisory is shared for download at checkmk.com. This vulnerability is handled as CVE-2023-31211 since 04/25/2023. There are neither technical details nor an exploit publicly available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Checkmk

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

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

NVD Base Score: 6.5
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: Insufficient control flow management
CWE: CWE-691
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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

04/25/2023 🔍
01/12/2024 +262 days 🔍
01/12/2024 +0 days 🔍
07/24/2024 +193 days 🔍

Sourcesinfo

Advisory: checkmk.com
Status: Confirmed

CVE: CVE-2023-31211 (🔍)
GCVE (CVE): GCVE-0-2023-31211
GCVE (VulDB): GCVE-100-250556

Entryinfo

Created: 01/12/2024 09:53
Updated: 07/24/2024 01:14
Changes: 01/12/2024 09:53 (48), 02/02/2024 08:40 (11), 07/24/2024 01:14 (17)
Complete: 🔍
Cache ID: 216::103