{"id":"CVE-2023-20215","state":"PUBLISHED","title":"A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowi","description":"A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked.\r\n\r This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device.","publishedAt":"2023-08-03T21:16:38.159Z","updatedAt":"2024-08-02T09:05:35.594Z","severity":{"score":5.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Secure Web Appliance"],"affected":[{"vendor":"Cisco","product":"Cisco Secure Web Appliance","versions":[{"version":"11.7.0-406","status":"affected"},{"version":"11.7.0-418","status":"affected"},{"version":"11.7.1-049","status":"affected"},{"version":"11.7.1-006","status":"affected"},{"version":"11.7.1-020","status":"affected"},{"version":"11.7.2-011","status":"affected"},{"version":"11.8.0-414","status":"affected"},{"version":"11.8.1-023","status":"affected"},{"version":"11.8.3-018","status":"affected"},{"version":"11.8.3-021","status":"affected"},{"version":"12.0.1-268","status":"affected"},{"version":"12.0.3-007","status":"affected"},{"version":"12.5.2-007","status":"affected"},{"version":"12.5.1-011","status":"affected"},{"version":"12.5.4-005","status":"affected"},{"version":"12.5.5-004","status":"affected"},{"version":"14.5.0-498","status":"affected"},{"version":"14.5.1-016","status":"affected"},{"version":"14.0.3-014","status":"affected"},{"version":"14.0.2-012","status":"affected"},{"version":"14.0.4-005","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj"],"weaknesses":["CWE-202"],"ingestedAt":"2026-10-29T20:05:36.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/20xxx/CVE-2023-20215.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-20215","state":"PUBLISHED","datePublished":"2023-08-03T21:16:38.159Z","dateUpdated":"2024-08-02T09:05:35.594Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2022-10-27T18:47:50.368Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked.\r\n\r This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device."}],"affected":[{"vendor":"Cisco","product":"Cisco Secure Web Appliance","versions":[{"version":"11.7.0-406","status":"affected"},{"version":"11.7.0-418","status":"affected"},{"version":"11.7.1-049","status":"affected"},{"version":"11.7.1-006","status":"affected"},{"version":"11.7.1-020","status":"affected"},{"version":"11.7.2-011","status":"affected"},{"version":"11.8.0-414","status":"affected"},{"version":"11.8.1-023","status":"affected"},{"version":"11.8.3-018","status":"affected"},{"version":"11.8.3-021","status":"affected"},{"version":"12.0.1-268","status":"affected"},{"version":"12.0.3-007","status":"affected"},{"version":"12.5.2-007","status":"affected"},{"version":"12.5.1-011","status":"affected"},{"version":"12.5.4-005","status":"affected"},{"version":"12.5.5-004","status":"affected"},{"version":"14.5.0-498","status":"affected"},{"version":"14.5.1-016","status":"affected"},{"version":"14.0.3-014","status":"affected"},{"version":"14.0.2-012","status":"affected"},{"version":"14.0.4-005","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj","name":"cisco-sa-wsa-bypass-vXvqwzsj"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","baseScore":5.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-202","lang":"en","description":"Exposure of Sensitive Information Through Data Queries","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2024-01-25T16:58:20.215Z"},"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-wsa-bypass-vXvqwzsj","discovery":"EXTERNAL","defects":["CSCwf60901","CSCwf55917","CSCwf94501"]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj","name":"cisco-sa-wsa-bypass-vXvqwzsj","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T09:05:35.594Z"}}]}}}