{"schemaVersion":3,"id":"CVE-2020-4555","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.","dates":{"published":"2020-12-21T17:50:28.202Z","modified":"2024-09-17T04:29:10.320Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.3,"severity":"medium","version":"3.0","versionLabel":"v3.0","source":"CVE.org","vector":"CVSS:3.0/S:U/UI:N/AV:N/PR:L/AC:L/I:L/C:L/A:L/E:U/RL:O/RC:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":6.3,"severity":"medium","vector":"CVSS:3.0/S:U/UI:N/AV:N/PR:L/AC:L/I:L/C:L/A:L/E:U/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":6.3,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5.5,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00764,"percentile":0.54881,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00764},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00755,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00764,"percentile":0.54881}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00764,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00764,"percentile":0.54881}]},"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-384","name":"Session Fixation","description":"Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.","type":"weakness","status":"Incomplete","abstraction":"Compound","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/384.html"}],"affected":[{"vendor":"ibm","product":"financial_transaction_manager","name":"financial transaction manager","label":"financial_transaction_manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"2.1.1","noFixRecorded":false,"fixedIn":null},{"text":"2.1.1.0","noFixRecorded":false,"fixedIn":null},{"text":"3.0.0","noFixRecorded":false,"fixedIn":null},{"text":"3.0.2","noFixRecorded":false,"fixedIn":null},{"text":"3.0.5","noFixRecorded":false,"fixedIn":null},{"text":"3.0.6","noFixRecorded":false,"fixedIn":null},{"text":"3.1.0","noFixRecorded":false,"fixedIn":null},{"text":"3.2.1","noFixRecorded":false,"fixedIn":null},{"text":"3.2.2","noFixRecorded":false,"fixedIn":null},{"text":"3.2.3","noFixRecorded":false,"fixedIn":null},{"text":"3.2.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"2.1.1 | 2.1.1.0 | 3.0.0 | 3.0.2 | 3.0.5 | 3.0.6 | 3.1.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.2.4","eol":null,"hubHref":"/vendor/ibm/financial_transaction_manager"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.ibm.com/support/pages/node/6388702","label":"www.ibm.com/support/pages/node/6388702","hostname":"www.ibm.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://www.ibm.com/support/pages/node/6388744","label":"www.ibm.com/support/pages/node/6388744","hostname":"www.ibm.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://www.ibm.com/support/pages/node/6388708","label":"www.ibm.com/support/pages/node/6388708","hostname":"www.ibm.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://www.ibm.com/support/pages/node/6388706","label":"www.ibm.com/support/pages/node/6388706","hostname":"www.ibm.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://www.ibm.com/support/pages/node/6388704","label":"www.ibm.com/support/pages/node/6388704","hostname":"www.ibm.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://www.ibm.com/support/pages/node/6388722","label":"www.ibm.com/support/pages/node/6388722","hostname":"www.ibm.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/183328","label":"exchange.xforce.ibmcloud.com/vulnerabilities/183328","hostname":"exchange.xforce.ibmcloud.com","tags":["VDB Entry","X Refsource XF","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-12-21T17:50:28.202Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-17T04:29:10.320Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":25,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T18:29:27.379Z","stale":false,"partial":false}}