{"cveID":"CVE-2020-3452","vendorProject":"Cisco","product":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","vulnerabilityName":"Cisco ASA and FTD Read-Only Path Traversal Vulnerability","dateAdded":"2021-11-03","shortDescription":"Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an improper input validation vulnerability when HTTP requests process URLs.  An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-3452","cwes":["CWE-20"],"year":2020,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2020-3452","technique":"T1202","technique_name_at_mapping":"Indirect Command Execution","mapping_type":"exploitation_technique","capability_group":"dir_traversal","comments":"CVE-2020-3452 is 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 read sensitive files on a targeted system.","references":["https://www.rapid7.com/blog/post/2020/07/23/cve-2020-3452-cisco-asa-firepower-read-only-path-traversal-vulnerability-what-you-need-to-know/","https://www.helpnetsecurity.com/2020/07/27/cve-2020-3452-exploited/"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2020-3452","technique":"T1005","technique_name_at_mapping":"Data from Local System","mapping_type":"primary_impact","capability_group":"dir_traversal","comments":"CVE-2020-3452 is 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 read sensitive files on a targeted system.","references":["https://www.rapid7.com/blog/post/2020/07/23/cve-2020-3452-cisco-asa-firepower-read-only-path-traversal-vulnerability-what-you-need-to-know/","https://www.helpnetsecurity.com/2020/07/27/cve-2020-3452-exploited/"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1005","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Data from Local System","name_at_mapping":"Data from Local System","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":14,"has_detection_strategy":true},{"id":"T1202","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Indirect Command Execution","name_at_mapping":"Indirect Command Execution","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":40,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":["aba47adc-4847-4970-95c1-61dce62a8b29"],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-24 19:45 UTC","_attack_version":"19.2"}