{"id":"CVE-2017-9978","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-9978","generatedAt":"2026-10-28T20:08:07.339Z","title":"An attacker could leverage this information to fine-tune and enumerate valid accounts on the system by searching for common usernames.","description":"On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, a flaw was found with the error message sent as a response for users that don't exist on the system. An attacker could leverage this information to fine-tune and enumerate valid accounts on the system by searching for common usernames.","published":"2017-08-28T19:29:01.000Z","lastModified":"2026-06-17T01:29:19.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-200"],"affected":["osnexus/quantastor"],"epss":{"score":0.04746,"percentile":0.91823,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-08-18","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42517,"kind":"exploit","title":"QuantaStor Software Defined Storage < 4.3.1 - Multiple Vulnerabilities","url":"https://www.exploit-db.com/exploits/42517","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/xml/webapps/42517.txt","file":"exploits/xml/webapps/42517.txt","published":"2017-08-18","added":"2017-08-18","updated":"2017-08-18","author":"VVVSecurity","type":"webapps","platform":"xml","port":null,"verified":false,"codes":["CVE-2017-9979","CVE-2017-9978"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB, so the technical barrier is gone even though the severity is medium and EPSS is 4.7%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/143780/OSNEXUS-QuantaStor-4-Information-Disclosure.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://seclists.org/fulldisclosure/2017/Aug/23","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.vvvsecurity.com/advisories/vvvsecurity-advisory-2017-6943.txt","tags":["Exploit","Third Party Advisory","URL Repurposed"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/42517/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://packetstormsecurity.com/files/143780/OSNEXUS-QuantaStor-4-Information-Disclosure.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2017/Aug/23","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vvvsecurity.com/advisories/vvvsecurity-advisory-2017-6943.txt","tags":["Exploit","Third Party Advisory","URL Repurposed"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42517/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-9978","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."}