{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/60636?format=json","vulnerability_id":"VCID-8nqp-wq4p-uye6","summary":"MicroWorld eScan AV's update mechanism failed to ensure authenticity and integrity of updates: update packages were delivered and accepted without robust cryptographic verification. As a result, an on-path attacker could perform a man-in-the-middle (MitM) attack and substitute malicious update payloads for legitimate ones. The eScan AV client accepted these substituted packages and executed or loaded their components (including sideloaded DLLs and Java/installer payloads), enabling remote code execution on affected systems. MicroWorld eScan confirmed remediation of the update mechanism on 2023-07-31 but versioning details are unavailable. NOTE: MicroWorld eScan disputes the characterization in third-party reports, stating the issue relates to 2018–2019 and that controls were implemented then.","aliases":[{"alias":"CVE-2024-13990"}],"fixed_packages":[],"affected_packages":[],"references":[{"reference_url":"https://securityaffairs.com/162228/breaking-news/escan-antivirus-mitm-attack.html","reference_id":"escan-antivirus-mitm-attack.html","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://securityaffairs.com/162228/breaking-news/escan-antivirus-mitm-attack.html"},{"reference_url":"https://thehackernews.com/2024/04/escan-antivirus-update-mechanism.html","reference_id":"escan-antivirus-update-mechanism.html","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://thehackernews.com/2024/04/escan-antivirus-update-mechanism.html"},{"reference_url":"https://www.escanav.com/en/about-us/eScan-update-advisory.asp","reference_id":"eScan-update-advisory.asp","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://www.escanav.com/en/about-us/eScan-update-advisory.asp"},{"reference_url":"https://www.gendigital.com/blog/insights/research/guptiminer-hijacking-antivirus-updates-for-distributing-backdoors-and-casual-mining","reference_id":"guptiminer-hijacking-antivirus-updates-for-distributing-backdoors-and-casual-mining","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://www.gendigital.com/blog/insights/research/guptiminer-hijacking-antivirus-updates-for-distributing-backdoors-and-casual-mining"},{"reference_url":"https://www.bleepingcomputer.com/news/security/hackers-hijack-antivirus-updates-to-drop-guptiminer-malware/","reference_id":"hackers-hijack-antivirus-updates-to-drop-guptiminer-malware","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://www.bleepingcomputer.com/news/security/hackers-hijack-antivirus-updates-to-drop-guptiminer-malware/"},{"reference_url":"https://arstechnica.com/security/2024/04/hackers-infect-users-of-antivirus-service-that-delivered-updates-over-http/","reference_id":"hackers-infect-users-of-antivirus-service-that-delivered-updates-over-http","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://arstechnica.com/security/2024/04/hackers-infect-users-of-antivirus-service-that-delivered-updates-over-http/"},{"reference_url":"https://blog.avast.com/leading-the-charge-against-guptiminer","reference_id":"leading-the-charge-against-guptiminer","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://blog.avast.com/leading-the-charge-against-guptiminer"},{"reference_url":"https://www.vulncheck.com/advisories/microworld-escan-av-insecure-update-mechanism-allows-mitm-replacement-of-updates","reference_id":"microworld-escan-av-insecure-update-mechanism-allows-mitm-replacement-of-updates","reference_type":"","scores":[{"value":"9.3","scoring_system":"cvssv4","scoring_elements":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-09-19T20:13:55Z/"}],"url":"https://www.vulncheck.com/advisories/microworld-escan-av-insecure-update-mechanism-allows-mitm-replacement-of-updates"}],"weaknesses":[{"cwe_id":295,"name":"Improper Certificate Validation","description":"The product does not validate, or incorrectly validates, a certificate."},{"cwe_id":347,"name":"Improper Verification of Cryptographic Signature","description":"The product does not verify, or incorrectly verifies, the cryptographic signature for data."}],"exploits":[],"severity_range_score":"9.3 - 9.3","exploitability":null,"weighted_severity":null,"risk_score":null,"resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-8nqp-wq4p-uye6"}