{"schemaVersion":3,"id":"CVE-2018-0134","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability in the RADIUS authentication module of Cisco Policy Suite could allow an unauthenticated, remote attacker to determine whether a subscriber username is valid. The vulnerability occurs because the Cisco Policy Suite RADIUS server component returns different authentication failure messages based on the validity of usernames. An attacker could use these messages to determine whether a valid subscriber username has been identified. The attacker could use this information in subsequent attacks against the system. Cisco Bug IDs: CSCvg47830.","dates":{"published":"2018-02-08T07:00:00.000Z","modified":"2024-12-02T21:09:18.747Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01436,"percentile":0.72697,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.01436},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01436,"percentile":0.72697}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01436,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01436,"percentile":0.72697}]},"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":[],"exploitCount":0,"weaknesses":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor","description":"The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/200.html"},{"id":"CWE-203","name":"Observable Discrepancy","description":"The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/203.html"}],"affected":[{"vendor":"cisco","product":"mobility_services_engine","name":"mobility services engine","label":"mobility_services_engine","ecosystem":null,"cpePart":"h","purl":null,"purlType":null,"versions":[{"text":"13.0.0","noFixRecorded":false,"fixedIn":null},{"text":"13.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"13.0.0 | 13.1.0","eol":null,"hubHref":"/vendor/cisco/mobility_services_engine"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securityfocus.com/bid/102954","label":"www.securityfocus.com/bid/102954","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-cps1","label":"tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-cps1","hostname":"tools.cisco.com","tags":["X Refsource CONFIRM","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-02-08T07:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-12-02T21:09:18.747Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":21,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T00:49:44.723Z","stale":false,"partial":false}}