CVE-2020-3926

An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter.

CVSS v3 6.1 MEDIUM
CVSS v2.0 7.8 HIGH

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

7.8^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:C/I:N/A:N

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://tvn.twcert.org.tw/taiwanvn/TVN-201910006	Third Party Advisory
https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce	Third Party Advisory
https://tvn.twcert.org.tw/taiwanvn/TVN-201910006	Third Party Advisory
https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:changingtec:servisign:*:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-02-03 11:15

Updated : 2024-11-21 05:31

NVD link : CVE-2020-3926

Mitre link : CVE-2020-3926

CVE.ORG link : CVE-2020-3926

JSON object : View

Products Affected

changingtec

servisign

microsoft

windows

CWE

CWE-552

Files or Directories Accessible to External Parties

{"id": "CVE-2020-3926", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:C/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "twcert@cert.org.tw", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.6}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2020-02-03T11:15:12.633", "references": [{"url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006", "tags": ["Third Party Advisory"], "source": "twcert@cert.org.tw"}, {"url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce", "tags": ["Third Party Advisory"], "source": "twcert@cert.org.tw"}, {"url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-552"}]}], "descriptions": [{"lang": "en", "value": "An arbitrary-file-access vulnerability exists in ServiSign security plugin, as long as the attackers learn the specific API function, they may access arbitrary files on target system via crafted API parameter."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de acceso a archivos arbitrarios en el plugin de seguridad de ServiSign, siempre que los atacantes aprendan la funci\u00f3n de la API espec\u00edfica, pueden acceder a archivos arbitrarios en el sistema de destino por medio de par\u00e1metros de la API dise\u00f1ados."}], "lastModified": "2024-11-21T05:31:58.370", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:changingtec:servisign:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8806BFD5-AF23-418C-978B-206504623B44", "versionEndIncluding": "1.0.19.0617"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "twcert@cert.org.tw"}