{"id":"CVE-2025-20345","state":"PUBLISHED","title":"Cisco Duo Authentication Proxy Information Disclosure Vulnerability","description":"A vulnerability in the debug logging function of Cisco Duo Authentication Proxy could allow an authenticated, high-privileged, remote attacker to view sensitive information in a system log file.\r\n\r\nThis vulnerability is due to insufficient masking of sensitive information before it is written to system log files. An attacker could exploit this vulnerability by accessing logs on an affected system. A successful exploit could allow the attacker to view sensitive information that should be restricted. ","publishedAt":"2025-08-20T16:26:32.520Z","updatedAt":"2025-08-20T18:43:54.617Z","severity":{"score":4.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Duo Authentication Proxy"],"affected":[{"vendor":"Cisco","product":"Cisco Duo Authentication Proxy","defaultStatus":"unknown","versions":[{"version":"2.4.2","status":"affected"},{"version":"2.4.3","status":"affected"},{"version":"2.4.4","status":"affected"},{"version":"2.4.5","status":"affected"},{"version":"2.4.6","status":"affected"},{"version":"2.4.7","status":"affected"},{"version":"2.4.8","status":"affected"},{"version":"2.4.9","status":"affected"},{"version":"2.4.10","status":"affected"},{"version":"2.4.11","status":"affected"},{"version":"2.4.12","status":"affected"},{"version":"2.4.13","status":"affected"},{"version":"2.4.14","status":"affected"},{"version":"2.4.14.1","status":"affected"},{"version":"2.4.15","status":"affected"},{"version":"2.4.16","status":"affected"},{"version":"2.4.17","status":"affected"},{"version":"2.4.18","status":"affected"},{"version":"2.4.19","status":"affected"},{"version":"2.4.20","status":"affected"},{"version":"2.4.21","status":"affected"},{"version":"2.5.4","status":"affected"},{"version":"2.6.0","status":"affected"},{"version":"2.7.0","status":"affected"},{"version":"2.8.1","status":"affected"},{"version":"2.9.0","status":"affected"},{"version":"2.10.0","status":"affected"},{"version":"2.10.1","status":"affected"},{"version":"2.11.0","status":"affected"},{"version":"2.12.0","status":"affected"},{"version":"2.12.1","status":"affected"},{"version":"2.13.0","status":"affected"},{"version":"2.14.0","status":"affected"},{"version":"3.0.0","status":"affected"},{"version":"3.1.0","status":"affected"},{"version":"3.1.1","status":"affected"},{"version":"3.2.0","status":"affected"},{"version":"3.2.1","status":"affected"},{"version":"3.2.2","status":"affected"},{"version":"3.2.3","status":"affected"},{"version":"3.2.4","status":"affected"},{"version":"4.0.0","status":"affected"},{"version":"4.0.1","status":"affected"},{"version":"4.0.2","status":"affected"},{"version":"5.0.0","status":"affected"},{"version":"5.0.1","status":"affected"},{"version":"5.0.2","status":"affected"},{"version":"5.1.0","status":"affected"},{"version":"5.1.1","status":"affected"},{"version":"5.2.0","status":"affected"},{"version":"5.2.1","status":"affected"},{"version":"5.2.2","status":"affected"},{"version":"5.3.0","status":"affected"},{"version":"5.3.1","status":"affected"},{"version":"5.4.0","status":"affected"},{"version":"5.4.1","status":"affected"},{"version":"5.5.0","status":"affected"},{"version":"5.5.1","status":"affected"},{"version":"5.6.0","status":"affected"},{"version":"5.6.1","status":"affected"},{"version":"5.7.0","status":"affected"},{"version":"5.7.1","status":"affected"},{"version":"5.7.2","status":"affected"},{"version":"5.7.3","status":"affected"},{"version":"5.7.4","status":"affected"},{"version":"5.8.0","status":"affected"},{"version":"5.8.1","status":"affected"},{"version":"6.0.0","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-authproxlog-SxczXQ63","https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd36820","https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2","https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-66682"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/20xxx/CVE-2025-20345.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-20345","state":"PUBLISHED","datePublished":"2025-08-20T16:26:32.520Z","dateUpdated":"2025-08-20T18:43:54.617Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2024-10-10T19:15:13.256Z"},"containers":{"cna":{"title":"Cisco Duo Authentication Proxy Information Disclosure Vulnerability","descriptions":[{"lang":"en","value":"A vulnerability in the debug logging function of Cisco Duo Authentication Proxy could allow an authenticated, high-privileged, remote attacker to view sensitive information in a system log file.\r\n\r\nThis vulnerability is due to insufficient masking of sensitive information before it is written to system log files. An attacker could exploit this vulnerability by accessing logs on an affected system. A successful exploit could allow the attacker to view sensitive information that should be restricted. "}],"affected":[{"vendor":"Cisco","product":"Cisco Duo Authentication Proxy","defaultStatus":"unknown","versions":[{"version":"2.4.2","status":"affected"},{"version":"2.4.3","status":"affected"},{"version":"2.4.4","status":"affected"},{"version":"2.4.5","status":"affected"},{"version":"2.4.6","status":"affected"},{"version":"2.4.7","status":"affected"},{"version":"2.4.8","status":"affected"},{"version":"2.4.9","status":"affected"},{"version":"2.4.10","status":"affected"},{"version":"2.4.11","status":"affected"},{"version":"2.4.12","status":"affected"},{"version":"2.4.13","status":"affected"},{"version":"2.4.14","status":"affected"},{"version":"2.4.14.1","status":"affected"},{"version":"2.4.15","status":"affected"},{"version":"2.4.16","status":"affected"},{"version":"2.4.17","status":"affected"},{"version":"2.4.18","status":"affected"},{"version":"2.4.19","status":"affected"},{"version":"2.4.20","status":"affected"},{"version":"2.4.21","status":"affected"},{"version":"2.5.4","status":"affected"},{"version":"2.6.0","status":"affected"},{"version":"2.7.0","status":"affected"},{"version":"2.8.1","status":"affected"},{"version":"2.9.0","status":"affected"},{"version":"2.10.0","status":"affected"},{"version":"2.10.1","status":"affected"},{"version":"2.11.0","status":"affected"},{"version":"2.12.0","status":"affected"},{"version":"2.12.1","status":"affected"},{"version":"2.13.0","status":"affected"},{"version":"2.14.0","status":"affected"},{"version":"3.0.0","status":"affected"},{"version":"3.1.0","status":"affected"},{"version":"3.1.1","status":"affected"},{"version":"3.2.0","status":"affected"},{"version":"3.2.1","status":"affected"},{"version":"3.2.2","status":"affected"},{"version":"3.2.3","status":"affected"},{"version":"3.2.4","status":"affected"},{"version":"4.0.0","status":"affected"},{"version":"4.0.1","status":"affected"},{"version":"4.0.2","status":"affected"},{"version":"5.0.0","status":"affected"},{"version":"5.0.1","status":"affected"},{"version":"5.0.2","status":"affected"},{"version":"5.1.0","status":"affected"},{"version":"5.1.1","status":"affected"},{"version":"5.2.0","status":"affected"},{"version":"5.2.1","status":"affected"},{"version":"5.2.2","status":"affected"},{"version":"5.3.0","status":"affected"},{"version":"5.3.1","status":"affected"},{"version":"5.4.0","status":"affected"},{"version":"5.4.1","status":"affected"},{"version":"5.5.0","status":"affected"},{"version":"5.5.1","status":"affected"},{"version":"5.6.0","status":"affected"},{"version":"5.6.1","status":"affected"},{"version":"5.7.0","status":"affected"},{"version":"5.7.1","status":"affected"},{"version":"5.7.2","status":"affected"},{"version":"5.7.3","status":"affected"},{"version":"5.7.4","status":"affected"},{"version":"5.8.0","status":"affected"},{"version":"5.8.1","status":"affected"},{"version":"6.0.0","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-authproxlog-SxczXQ63","name":"cisco-sa-authproxlog-SxczXQ63"},{"url":"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd36820","name":"CSCvd36820"},{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2","name":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2"},{"url":"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-66682","name":"Cisco Event Response: March 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","baseScore":4.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"Exposure of Sensitive Information to an Unauthorized Actor","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2025-08-20T16:26:32.520Z"},"exploits":[{"lang":"en","value":"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-authproxlog-SxczXQ63","discovery":"INTERNAL","defects":["CSCwq57269"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-08-20T18:43:44.741643Z","id":"CVE-2025-20345","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-08-20T18:43:54.617Z"}}]}}}