{"schemaVersion":3,"id":"CVE-2018-16153","aliases":["GHSA-hcxx-mp6g-6gr9"],"status":"published","duplicateOf":null,"title":null,"description":"An issue was discovered in Apereo Opencast 4.x through 10.x before 10.6. It sends system digest credentials during authentication attempts to arbitrary external services in some situations.","dates":{"published":"2023-12-12T00:00:00.000Z","modified":"2025-05-27T14:35:51.213Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Maven","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true}]},"epss":{"probability":0.00829,"percentile":0.57041,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00829},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00829,"percentile":0.57041}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00829,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00829,"percentile":0.57041}]},"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-522","name":"Insufficiently Protected Credentials","description":"The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/522.html"}],"affected":[{"vendor":"apereo","product":"opencast","name":"opencast","label":"opencast","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.0, < 10.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.0, < 10.6","eol":null,"hubHref":"/vendor/apereo/opencast"},{"vendor":"org.opencastproject","product":"opencast-common","name":"org.opencastproject:opencast-common","label":"opencast-common","ecosystem":"Maven","cpePart":null,"purl":"pkg:maven/org.opencastproject/opencast-common","purlType":"maven","versions":[{"text":"< 10.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 10.6","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.apereo.org/projects/opencast/news","label":"www.apereo.org/projects/opencast/news","hostname":"www.apereo.org","tags":["Release Notes","WEB"]},{"url":"https://github.com/advisories/GHSA-hcxx-mp6g-6gr9","label":"github.com/advisories/GHSA-hcxx-mp6g-6gr9","hostname":"github.com","tags":["Third Party Advisory","Advisory"]},{"url":"https://github.com/opencast/opencast/commit/776d5588f39c61eb04c03bb955416c4f77629d51","label":"github.com/opencast/opencast/commit/776d5588f39c61eb04c03bb955416c4f77629d51","hostname":"github.com","tags":["Patch","WEB"]},{"url":"https://docs.opencast.org/r/10.x/admin/#changelog","label":"docs.opencast.org/r/10.x/admin/","hostname":"docs.opencast.org","tags":["Release Notes","WEB"]},{"url":"https://github.com/opencast/opencast/security/advisories/GHSA-hcxx-mp6g-6gr9","label":"github.com/opencast/opencast/security/advisories/GHSA-hcxx-mp6g-6gr9","hostname":"github.com","tags":["WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-16153","label":"nvd.nist.gov/vuln/detail/CVE-2018-16153","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://docs.opencast.org/r/10.x/admin/#changelog/#opencast-106","label":"docs.opencast.org/r/10.x/admin/","hostname":"docs.opencast.org","tags":["WEB"]},{"url":"https://github.com/opencast/opencast","label":"github.com/opencast/opencast","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2025-54380"]},"timeline":[{"kind":"published","date":"2023-12-12T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-05-27T14:35:51.213Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T16:19:15.511Z","stale":false,"partial":false}}