CVE-2025-64998— Session hijacking via exposed session signing secret in distributed Checkmk setups
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I. Basic Information for CVE-2025-64998
Vulnerability Information
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Vulnerability Title
Session hijacking via exposed session signing secret in distributed Checkmk setups
Source: NVD (National Vulnerability Database)
Vulnerability Description
Exposure of session signing secret in Checkmk <2.4.0p23, <2.3.0p45 and 2.2.0 allows an administrator of a remote site with config sync enabled to hijack sessions on the central site by forging session cookies.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不充分的凭证保护机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Checkmk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Checkmk是Checkmk公司的一个 IT 监控平台。 Checkmk 2.4.0p23之前版本、2.3.0p45之前版本和2.2.0版本存在安全漏洞，该漏洞源于会话签名密钥泄露，可能导致远程站点管理员伪造会话Cookie。
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 | 2.4.0 ~ 2.4.0p23 | - |
II. Public POCs for CVE-2025-64998
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Werk #18954: Fix rogue remote site can hijack sessionsvendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-64998
IV. Related Vulnerabilities
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Livestatus injection in monitoring quicksearch - CVE-2025-39666
omd: Local privilege escalation when executing omd commands - CVE-2026-3466
Cross-site scripting in dashlet title
Same vendor: Checkmk GmbH
- CVE-2026-33457
Potential livestatus injection in prediction graph page - CVE-2026-33456
Potential livestatus injection in notification test - CVE-2026-33455
Livestatus injection in monitoring quicksearch - CVE-2025-39666
omd: Local privilege escalation when executing omd commands - CVE-2026-3466
Cross-site scripting in dashlet title
Same weakness: CWE-522
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Agent 2 Oracle plugin TNS connection string injection via th - CVE-2026-42367
GeoVision LPC2011/LPC2211 Web Interface / ssi.cgi privilege
V. Comments for CVE-2025-64998
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