{"api_version":"1","generated_at":"2026-04-23T09:05:42+00:00","cve":"CVE-2018-0254","urls":{"html":"https://cve.report/CVE-2018-0254","api":"https://cve.report/api/cve/CVE-2018-0254.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-0254","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-0254"},"summary":{"title":"CVE-2018-0254","description":"A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435.","state":"PUBLIC","assigner":"psirt@cisco.com","published_at":"2018-04-19 20:29:00","updated_at":"2019-10-09 23:31:00"},"problem_types":["CWE-693"],"metrics":[],"references":[{"url":"http://www.securityfocus.com/bid/103940","name":"103940","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Cisco Firepower System Software CVE-2018-0254 Remote Security Bypass Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2","name":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"Cisco Firepower System Software Intelligent Application Bypass Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-0254","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0254","name":"NVD vulnerability 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Firepower System Software","version":{"version_data":[{"version_value":"Cisco Firepower System Software"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-693"}]}]},"references":{"reference_data":[{"name":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2","refsource":"CONFIRM","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2"},{"name":"103940","refsource":"BID","url":"http://www.securityfocus.com/bid/103940"}]}},"nvd":{"publishedDate":"2018-04-19 20:29:00","lastModifiedDate":"2019-10-09 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vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"254","Ordinal":"2","NoteData":"2018-04-19","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"254","Ordinal":"3","NoteData":"2018-04-24","Type":"Other","Title":"Modified"}]}}}