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CVE-2023-23549— DoS via long hostnames

Quick assessment

Affected
Checkmk GmbH Checkmk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Checkmk是一个编辑器。 Checkmk存在安全漏洞，该漏洞源于存在不正确输入验证，允许特权攻击者通过太长的主机名导致UI部分拒绝服务。

CVSS 2.7 · Low EPSS 0.65% · P50

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2023-23549

Vulnerability Information
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Vulnerability Title
DoS via long hostnames
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Input Validation in Checkmk <2.2.0p15, <2.1.0p37, <=2.0.0p39 allows priviledged attackers to cause partial denial of service of the UI via too long hostnames.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1284
Source: CVE Program / CVE List V5
Vulnerability Title
Checkmk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Checkmk是一个编辑器。 Checkmk存在安全漏洞，该漏洞源于存在不正确输入验证，允许特权攻击者通过太长的主机名导致UI部分拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Checkmk GmbH Checkmk 2.2.0 ~ 2.2.0p15 -

II. Public POCs for CVE-2023-23549

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III. Intelligence Information for CVE-2023-23549

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Other References for CVE-2023-23549 (1)

IV. Related Vulnerabilities

Same product: Checkmk
Same vendor: Checkmk GmbH
Same weakness: CWE-1284