{"id":"CVE-2017-12479","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-12479","generatedAt":"2026-10-28T22:20:12.467Z","title":"It was discovered that an issue in the session logic in Unitrends Backup (UB) before 10.0.0 allowed using the LOGDIR environment variable during a web session to elevate an existing low-privilege user to root privileges.","description":"It was discovered that an issue in the session logic in Unitrends Backup (UB) before 10.0.0 allowed using the LOGDIR environment variable during a web session to elevate an existing low-privilege user to root privileges. A remote attacker with existing low-privilege credentials could then execute arbitrary commands with root privileges.","published":"2017-08-07T15:29:00.000Z","lastModified":"2026-06-17T01:03:23.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["kaseya/unitrends backup"],"epss":{"score":0.11811,"percentile":0.96063,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.10003,"percentile":0.95454},{"date":"2026-09-22","score":0.11811,"percentile":0.95892}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-08-08","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42959,"kind":"exploit","title":"Unitrends UEB 9.1 - Privilege Escalation","url":"https://www.exploit-db.com/exploits/42959","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/42959.py","file":"exploits/php/webapps/42959.py","published":"2017-08-08","added":"2017-10-06","updated":"2017-10-06","author":"Jared Arave","type":"webapps","platform":"php","port":null,"verified":true,"codes":["CVE-2017-12479"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.8%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://support.unitrends.com/UnitrendsBackup/s/article/000005757","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://support.unitrends.com/UnitrendsBackup/s/article/000005757","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-12479","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}