{"id":"CVE-2024-53704","published":"2025-01-09T07:15:27Z","modified":"2026-08-04T05:16:31Z","title":"SonicWall SonicOS SSLVPN Improper Authentication Vulnerability","vendor":"SonicWall","product":"SonicOS","tier":"core","eol":null,"description":{"text":"An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.","provenance":"source","from":"NVD"},"summary":{"text":"A flaw in the SSLVPN authentication mechanism of SonicWall SonicOS, the operating system for SonicWall's firewall appliances, is an Improper Authentication vulnerability. A remote attacker with network access to the SSLVPN service can bypass authentication without credentials or user interaction.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:01:37Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.95314,"percentile":0.99865,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-02-18","dueDate":"2025-03-11","ransomware":true,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0003 ; https://nvd.nist.gov/vuln/detail/CVE-2024-53704","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-02-13","exploitedFirstSeen":"2025-02-13","ransomware":true,"evidence":[{"url":"https://arcticwolf.com/resources/blog/cve-2024-53704/","date":"2025-02-13"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-02-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-02-24&host_type=src&vulnerability=cve-2024-53704","date":"2025-02-24"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-02-25&host_type=src&vulnerability=cve-2024-53704","date":"2025-02-25"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-02-27&host_type=src&vulnerability=cve-2024-53704","date":"2025-02-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-02-28&host_type=src&vulnerability=cve-2024-53704","date":"2025-02-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-03-01&host_type=src&vulnerability=cve-2024-53704","date":"2025-03-01"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-03-02&host_type=src&vulnerability=cve-2024-53704","date":"2025-03-02"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-03-03&host_type=src&vulnerability=cve-2024-53704","date":"2025-03-03"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-03-04&host_type=src&vulnerability=cve-2024-53704","date":"2025-03-04"}],"evidenceTotal":450,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0003","tags":["Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-53704","tags":["US Government Resource"]}],"techniques":[{"id":"T1199","name":"Trusted Relationship","tactics":["initial-access"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Improper Access Control","mappingType":"exploitation_technique","evidence":[],"comment":"Due to improper session cookie validation in SonicOS, an attacker can hiijack an active session without any credentials.","confidence":"high"},{"id":"T1212","name":"Exploitation for Credential Access","tactics":["credential-access"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Improper Access Control","mappingType":"exploitation_technique","evidence":[],"comment":"Due to improper session cookie validation in SonicOS, an attacker can hiijack an active session without any credentials.","confidence":"high"},{"id":"T1078.004","name":"Cloud Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Improper Access Control","mappingType":"primary_impact","evidence":[],"comment":"Due to improper session cookie validation in SonicOS, an attacker can hiijack an active session without any credentials.","confidence":"high"},{"id":"T1083","name":"File and Directory Discovery","tactics":["discovery"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Improper Access Control","mappingType":"primary_impact","evidence":[],"comment":"Due to improper session cookie validation in SonicOS, an attacker can hiijack an active session without any credentials.","confidence":"high"},{"id":"T1021.001","name":"Remote Desktop Protocol","tactics":["lateral-movement"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Improper Access Control","mappingType":"secondary_impact","evidence":[],"comment":"Due to improper session cookie validation in SonicOS, an attacker can hiijack an active session without any credentials.","confidence":"low","confidenceNote":"Windows-only technique on a non-Windows product"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-52037","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-52037","exploited":true,"exploitedSince":"2025-02-18","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":3,"skipped":0,"earliest":"2025-01-22","earliestUrl":"https://github.com/sfewer-r7/SonicSessionLeak","repos":[{"name":"istagmbh/CVE-2024-53704","url":"https://github.com/istagmbh/CVE-2024-53704","stars":2,"created":"2025-02-11"},{"name":"sfewer-r7/SonicSessionLeak","url":"https://github.com/sfewer-r7/SonicSessionLeak","stars":0,"created":"2025-01-22"},{"name":"anir0y/sonicwall-audit-toolkit","url":"https://github.com/anir0y/sonicwall-audit-toolkit","stars":0,"created":"2026-02-23"}]},"nuclei":[{"id":"CVE-2024-53704","name":"SSL VPN Session Hijacking","severity":"critical","path":"http/cves/2024/CVE-2024-53704.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-53704.yaml"}],"first":{"date":"2025-01-22","source":"PoC-in-GitHub","url":"https://github.com/sfewer-r7/SonicSessionLeak"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1199","T1212"],"provenance":"source"},{"stage":"primary","techniques":["T1078.004","T1083"],"provenance":"source"},{"stage":"related","techniques":["T1021.001"],"provenance":"source","lowConfidence":true}],"timeline":[{"date":"2025-01-09","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-53704","provenance":"source"},{"date":"2025-01-22","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/sfewer-r7/SonicSessionLeak","provenance":"source"},{"date":"2025-02-13","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://arcticwolf.com/resources/blog/cve-2024-53704/","provenance":"source"},{"date":"2025-02-18","kind":"kev","label":"Added to CISA KEV (known ransomware use)","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-02-18","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-52037","provenance":"source"}],"speed":{"daysToPublicExploit":13,"firstExploitFrom":"PoC-in-GitHub","daysToKev":40},"priority":{"score":79.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 624 days ago"},{"name":"Known ransomware use","points":10.0,"detail":"CISA KEV and VulnCheck KEV: Known"},{"name":"EPSS percentile","points":19.97,"detail":"percentile 0.9987"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"3 PoC-in-GitHub repos; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}