{"id":"CVE-2019-15276","published":"2019-11-26T03:12:16Z","modified":"2024-11-21T19:05:20Z","title":"Cisco Wireless LAN Controller HTTP Parsing Engine Denial of Service Vulnerability","vendor":"Cisco","product":"Cisco Wireless LAN Controller (WLC)","tier":"core","eol":null,"affectedVersions":[{"vendor":"Cisco","product":"Cisco Wireless LAN Controller (WLC)","versions":[">= unspecified, < n/a"]}],"description":{"text":"A vulnerability in the web interface of Cisco Wireless LAN Controller Software could allow a low-privileged, authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability exists due to a failure of the HTTP parsing engine to handle specially crafted URLs. An attacker could exploit this vulnerability by authenticating with low privileges to an affected controller and submitting the crafted URL to the web interface of the affected device. Conversely, an unauthenticated attacker could exploit this vulnerability by persuading a user of the web interface to click the crafted URL. A successful exploit could allow the attacker to cause an unexpected restart of the device, resulting in a DoS condition.","provenance":"source","from":"CVE.org"},"summary":null,"cvss":{"score":7.7,"severity":"HIGH","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.46305,"percentile":0.98811,"date":"2026-10-28","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-wlc-dos","tags":["vendor-advisory","x_refsource_CISCO"]},{"url":"http://packetstormsecurity.com/files/155554/Cisco-WLC-2504-8.9-Denial-Of-Service.html","tags":["x_refsource_MISC"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"exploitation_technique","evidence":[],"confidence":"low","confidenceNote":"server-side bug exploitable without user interaction; client-execution technique does not fit"},{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"exploitation_technique","evidence":[],"confidence":"high"},{"id":"T1566","name":"Phishing","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"exploitation_technique","evidence":[],"confidence":"high"},{"id":"T1499.004","name":"Application or System Exploitation","tactics":["impact"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve"],"basisDetail":"CTID attack_to_cve (Phase 2)","mappingType":"primary_impact","evidence":[],"confidence":"high"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2019-6284","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-6284","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[{"id":47744,"url":"https://www.exploit-db.com/exploits/47744","title":"Cisco WLC 2504 8.9 - Denial of Service (PoC)","type":"dos","platform":"hardware","date":"2019-12-04","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2019-12-04"},"first":{"date":"2019-12-04","source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/47744"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/155554/Cisco-WLC-2504-8.9-Denial-Of-Service.html"],"flow":[{"stage":"exploitation","techniques":["T1190","T1566"],"provenance":"source"},{"stage":"primary","techniques":["T1499.004"],"provenance":"source"},{"stage":"related","techniques":["T1189"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2019-11-26","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2019-15276","provenance":"source"},{"date":"2019-12-04","kind":"exploit-public","label":"First public exploit: Exploit-DB (EDB-47744)","url":"https://www.exploit-db.com/exploits/47744","provenance":"source"}],"speed":{"daysToPublicExploit":8,"firstExploitFrom":"Exploit-DB","daysToKev":null},"priority":{"score":30.2,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.76,"detail":"percentile 0.9881"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 Exploit-DB entry; 1 NVD exploit link"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":5.39,"detail":"base score 7.7"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}