{"id":"CVE-2020-3187","published":"2020-05-06T16:41:01Z","modified":"2024-11-15T17:25:50Z","title":"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Path Traversal…","vendor":"Cisco","product":"Cisco Adaptive Security Appliance (ASA) Software","tier":"core","eol":null,"description":{"text":"A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and obtain read and delete access to sensitive files on a targeted system. The vulnerability is due to a lack of proper input validation of the HTTP URL. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences. An exploit could allow the attacker to view or delete arbitrary files on the targeted system. When the device is reloaded after exploitation of this vulnerability, any files that were deleted are restored. The attacker can only view and delete files within the web services file system. This file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability can not be used to obtain access to ASA or FTD system files or underlying operating system (OS) files. Reloading the affected device will restore all files within the web services file system.","provenance":"source","from":"CVE.org"},"summary":{"text":"A path traversal flaw in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software allows directory traversal through improperly validated HTTP URLs. An unauthenticated remote attacker can send a crafted HTTP request to view or delete files within the web services file system, which exists only when WebVPN or AnyConnect is configured, though it cannot reach ASA/FTD system files or underlying OS files, and reloading the device restores any deleted files.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T05:10:40Z"},"cvss":{"score":9.1,"severity":"CRITICAL","version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.96503,"percentile":0.99881,"date":"2026-10-30","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2025-05-22","exploitedFirstSeen":"2025-05-22","ransomware":false,"evidence":[{"url":"https://security.pditechnologies.com/resources/q1-2025-cyber-threat-report/","date":"2025-05-22"}],"evidenceTotal":1,"provenance":"source"},"exploited":true,"otx":{"pulseCount":1,"pulses":[{"name":"CVE Data","url":"https://otx.alienvault.com/pulse/69929b597293fe5837b9c95c","created":"2026-02-16"}],"provenance":"machine"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-path-JE3azWw43","tags":["vendor-advisory","x_refsource_CISCO"]},{"url":"http://packetstormsecurity.com/files/158648/Cisco-Adaptive-Security-Appliance-Software-9.7-Arbitrary-File-Deletion.html","tags":["x_refsource_MISC"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-24458","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-24458","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[{"id":48723,"url":"https://www.exploit-db.com/exploits/48723","title":"Cisco Adaptive Security Appliance Software 9.7 - Unauthenticated Arbitrary File Deletion","type":"webapps","platform":"hardware","date":"2020-07-29","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2020-07-29"},"pocGithub":{"count":3,"skipped":2,"earliest":"2020-07-28","earliestUrl":"https://github.com/CrackerCat/CVE-2020-3187","repos":[{"name":"CrackerCat/CVE-2020-3187","url":"https://github.com/CrackerCat/CVE-2020-3187","stars":1,"created":"2020-07-28"},{"name":"Cappricio-Securities/CVE-2020-3187","url":"https://github.com/Cappricio-Securities/CVE-2020-3187","stars":1,"created":"2024-05-19"},{"name":"sunyyer/CVE-2020-3187-Scanlist","url":"https://github.com/sunyyer/CVE-2020-3187-Scanlist","stars":0,"created":"2023-03-14"}]},"nuclei":[{"id":"CVE-2020-3187","name":"Cisco Adaptive Security Appliance Software/Cisco Firepower Threat Defense - Directory Traversal","severity":"critical","path":"http/cves/2020/CVE-2020-3187.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-3187.yaml"}],"first":{"date":"2020-07-28","source":"PoC-in-GitHub","url":"https://github.com/CrackerCat/CVE-2020-3187"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/158648/Cisco-Adaptive-Security-Appliance-Software-9.7-Arbitrary-File-Deletion.html"],"flow":[],"timeline":[{"date":"2020-05-06","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2020-3187","provenance":"source"},{"date":"2020-07-28","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub; later: Exploit-DB 2020-07-29","url":"https://github.com/CrackerCat/CVE-2020-3187","provenance":"source"},{"date":"2025-05-22","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://security.pditechnologies.com/resources/q1-2025-cyber-threat-report/","provenance":"source"}],"speed":{"daysToPublicExploit":83,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":67.0,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 527 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.98,"detail":"percentile 0.9988"},{"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; 3 PoC-in-GitHub repos; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":0.68,"detail":"1 pulse"},{"name":"CVSS severity","points":6.37,"detail":"base score 9.1"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-cisco-asa-cwe-22"}}