{"id":"CVE-2018-15454","published":"2018-11-01T13:00:00Z","modified":"2024-11-26T14:23:11Z","title":"Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software Denial of Service Vulnerability","vendor":"Cisco","product":"Cisco Adaptive Security Appliance (ASA) Software","tier":"core","eol":null,"affectedVersions":[{"vendor":"Cisco","product":"Cisco Adaptive Security Appliance (ASA) Software","versions":["9.4"]}],"description":{"text":"A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload or trigger high CPU, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device. Software updates that address this vulnerability are not yet available.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":8.6,"severity":"HIGH","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.04269,"percentile":0.91051,"date":"2026-10-28","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2018-10-31","exploitedFirstSeen":"2018-10-31","ransomware":false,"evidence":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181031-asaftd-sip-dos","date":"2018-10-31"}],"evidenceTotal":1,"provenance":"source"},"exploited":true,"otx":{"pulseCount":1,"pulses":[{"name":"Attempted Administrator Privilege Gain","url":"https://otx.alienvault.com/pulse/625f382c638b44b686f58520","created":"2022-04-19"}],"provenance":"machine"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"references":[{"url":"http://www.securityfocus.com/bid/105768","tags":["vdb-entry","x_refsource_BID"]},{"url":"http://www.securitytracker.com/id/1042129","tags":["vdb-entry","x_refsource_SECTRACK"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181031-asaftd-sip-dos","tags":["vendor-advisory","x_refsource_CISCO"]}],"techniques":[{"id":"T1499.004","name":"Application or System Exploitation","tactics":["impact"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 1)","mappingType":"uncategorized","evidence":[],"confidence":"low","confidenceNote":"CTID attack_to_cve Phase 1 \"Uncategorized\" mapping (not staged by impact)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2018-7332","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-7332","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"related","techniques":["T1499.004"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2018-10-31","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181031-asaftd-sip-dos","provenance":"source"},{"date":"2018-11-01","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2018-15454","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":59.9,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 2920 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":18.21,"detail":"percentile 0.9105"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.68,"detail":"1 pulse"},{"name":"CVSS severity","points":6.02,"detail":"base score 8.6"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-cisco-asa-cwe-20"}}