8.1

CVE-2023-0284: checkmk Improper Input Validation

CVSS: 8.1v3.1HighModified
AliasesUBUNTU-CVE-2023-0284
Published 24-01-2023Last modified 27-03-2025
Open JSON

Vulnerability summary

CVE-2023-0284 is a high (CVSS 8.1) Improper Input Validation vulnerability in checkmk. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 60.1% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (NVD)
EPSS score
0.93%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-01-2023
    PublishedVulnerability first disclosed.
  2. 27-03-2025
    Last modifiedVulnerability information updated.

Description

Improper Input Validation of LDAP user IDs in Tribe29 Checkmk allows attackers that can control LDAP user IDs to manipulate files on the server. Checkmk <= 2.1.0p19, Checkmk <= 2.0.0p32, and all versions of Checkmk 1.6.0 (EOL) are affected.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.93%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

0.00 pp

From 0.93% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.93%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Checkmk1 product
  • checkmkEOL2.0.0 | 2.0.0:b1 | 2.0.0:b2 | 2.0.0:b3 | 2.0.0:b4 | 2.0.0:b5 | 2.0.0:b6 | 2.0.0:b7 | 2.0.0:b8 | 2.0.0:i1 | 2.0.0:p1 | 2.0.0:p10 | 2.0.0:p11 | 2.0.0:p12 | 2.0.0:p13 | 2.0.0:p14 | 2.0.0:p15 | 2.0.0:p16 | 2.0.0:p17 | 2.0.0:p18 | 2.0.0:p19 | 2.0.0:p2 | 2.0.0:p20 | 2.0.0:p21 | 2.0.0:p22 | 2.0.0:p23 | 2.0.0:p24 | 2.0.0:p25 | 2.0.0:p26 | 2.0.0:p27 | 2.0.0:p28 | 2.0.0:p29 | 2.0.0:p3 | 2.0.0:p30 | 2.0.0:p31 | 2.0.0:p32 | 2.0.0:p4 | 2.0.0:p5 | 2.0.0:p6 | 2.0.0:p7 | 2.0.0:p8 | 2.0.0:p9 | 2.1.0:b1 | 2.1.0:b2 | 2.1.0:b3 | 2.1.0:b4 | 2.1.0:b5 | 2.1.0:b6 | 2.1.0:b7 | 2.1.0:b8 | 2.1.0:b9 | 2.1.0:p1 | 2.1.0:p10 | 2.1.0:p11 | 2.1.0:p12 | 2.1.0:p13 | 2.1.0:p14 | 2.1.0:p15 | 2.1.0:p16 | 2.1.0:p17 | 2.1.0:p18 | 2.1.0:p19 | 2.1.0:p2 | 2.1.0:p3 | 2.1.0:p4 | 2.1.0:p5 | 2.1.0:p6 | 2.1.0:p7 | 2.1.0:p8 | 2.1.0:p9
Tribe291 product
  • checkmk≥ 2.0.0, ≤ 2.0.0p32 | ≥ 2.1.0, ≤ 2.1.0p19 | ≥ 1.6.0, ≤ 1.6.0p30 | ≥ 1.6.0, < 2.0.0
Ubuntu1 product
  • check-mkAll versions (No fix recorded)

3 vendors · 3 products

References

3 links