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Checkmk CVE-2022-31258

MEDIUM
Improper Link Resolution Before File Access (CWE-59)
2022-05-20 cve@mitre.org
6.7
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Symlink resolution safety
Impact

CVSS score of 6.7 (MEDIUM). Attack characteristics: local attack vector, low complexity, high privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAI

In Checkmk before 1.6.0p29, 2.x before 2.0.0p25, and 2.1.x before 2.1.0b10, a site user can escalate to root by editing an OMD hook symlink. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-59. In Checkmk before 1.6.0p29, 2.x before 2.0.0p25, and 2.1.x before 2.1.0b10, a site user can escalate to root by editing an OMD hook symlink. Affected products include: Checkmk, Tribe29 Checkmk. Version information: before 1.6.0.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

In Checkmk before 1.6.0p29, 2.x before 2.0.0p25, and 2.1.x before 2.1.0b10, a site user can escalate to root by editing an OMD hook symlink.

Threat Intelligence Overview

EPSS Score
0.4%
Top 69% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.4%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Affected Products (CPE)NVD

cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b5:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:b9:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p10:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p11:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p12:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p13:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p14:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p15:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p16:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p19:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p20:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.6.0:p21:*:*:*:*:*:*
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