{"schemaVersion":3,"id":"CVE-2025-34323","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Nagios Log Server versions prior to 2026R1.0.1 are vulnerable to local privilege escalation due to a combination of sudo misconfiguration and group-writable application directories. The 'www-data' user is a member of the 'nagios' group, which has write access to '/usr/local/nagioslogserver/scripts', while several scripts in this directory are owned by root and may be executed via sudo without a password. A local attacker running as 'www-data' can move one of these root-owned scripts to a backup name and create a replacement script with attacker-controlled content at the original path, then invoke it with sudo. This allows arbitrary commands to be executed with root privileges, providing full compromise of the underlying operating system.","dates":{"published":"2025-11-17T17:48:28.973Z","modified":"2026-05-14T02:08:14.839Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.5,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00348,"percentile":0.27142,"severity":"low","asOf":"2026-10-22T00:00:00.000Z","change":{"pp":0.023000000000000017,"baselineDate":"2026-09-22T00:00:00.000Z","baselineScore":0.00325},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.00348,"percentile":0.27142}],"last30":[{"date":"2026-09-22T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00325,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-22T00:00:00.000Z","score":0.00348,"percentile":0.27142}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_076123B21512AC28","name":"Exploit Reference (theyhack.me)","source":"reference","url":"https://theyhack.me/Rooting-Nagios-Log-Server/","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-732","name":"Incorrect Permission Assignment for Critical Resource","description":"The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/732.html"}],"affected":[{"vendor":"nagios","product":"log_server","name":"log server","label":"log_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2026R1.0.1","noFixRecorded":false,"fixedIn":null},{"text":"< 2026","noFixRecorded":false,"fixedIn":null},{"text":"2026:r1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2026R1.0.1 | < 2026 | 2026:r1","eol":null,"hubHref":"/vendor/nagios/log_server"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.nagios.com/products/security/#log-server","label":"www.nagios.com/products/security/","hostname":"www.nagios.com","tags":["Vendor Advisory","Patch"]},{"url":"https://www.nagios.com/changelog/nagios-log-server/nagios-log-server-2026r1-0-1/","label":"www.nagios.com/changelog/nagios-log-server/nagios-log-server-2026r1-0-1/","hostname":"www.nagios.com","tags":["Release Notes","Patch"]},{"url":"https://www.vulncheck.com/advisories/nagios-log-server-local-privilege-escalation-via-writable-scripts-and-sudo-rules","label":"www.vulncheck.com/advisories/…","hostname":"www.vulncheck.com","tags":["Third Party Advisory"]},{"url":"https://theyhack.me/Rooting-Nagios-Log-Server/","label":"theyhack.me/Rooting-Nagios-Log-Server/","hostname":"theyhack.me","tags":["Technical Description","Exploit"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2025-11-17T17:48:28.973Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-05-14T02:08:14.839Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":44,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-22T14:57:45.574Z","stale":false,"partial":false}}