CVE-2020-3926 - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact None

Availability Impact None

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

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Changingtec	Servisign
Microsoft	Windows

Configuration 1 [-]

AND

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

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

No data.

References

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

History

No history.

MITRE

Status: PUBLISHED

Assigner: twcert

Published: 2020-02-03T11:00:31.233534Z

Updated: 2024-09-16T17:14:45.590Z

Reserved: 2019-12-20T00:00:00

Link: CVE-2020-3926

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2020-02-03T11:15:12.633

Modified: 2022-05-24T20:48:15.250

Link: CVE-2020-3926

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "ServiSign Windows versions", "vendor": "CHANGING", "versions": [{"lessThanOrEqual": "1.0.19.0617", "status": "affected", "version": "0", "versionType": "custom"}]}], "datePublic": "2020-02-03T00:00:00", "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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Arbitrary File Access", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-02-11T15:58:04", "orgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e", "shortName": "twcert"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"}, {"tags": ["x_refsource_MISC"], "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"}], "source": {"discovery": "EXTERNAL"}, "title": "ServiSign Windows Versions- Arbitrary File Access", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"AKA": "TWCERT/CC", "ASSIGNER": "cve@cert.org.tw", "DATE_PUBLIC": "2020-02-03T10:00:00.000Z", "ID": "CVE-2020-3926", "STATE": "PUBLIC", "TITLE": "ServiSign Windows Versions- Arbitrary File Access"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "ServiSign Windows versions", "version": {"version_data": [{"version_affected": "<=", "version_name": "0", "version_value": "1.0.19.0617"}]}}]}, "vendor_name": "CHANGING"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "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."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Arbitrary File Access"}]}]}, "references": {"reference_data": [{"name": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006", "refsource": "MISC", "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"}, {"name": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce", "refsource": "MISC", "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"}]}, "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T07:52:20.665Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"}]}]}, "cveMetadata": {"assignerOrgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e", "assignerShortName": "twcert", "cveId": "CVE-2020-3926", "datePublished": "2020-02-03T11:00:31.233534Z", "dateReserved": "2019-12-20T00:00:00", "dateUpdated": "2024-09-16T17:14:45.590Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:changingtec:servisign:*:*:*:*:*:*:*:*", "matchCriteriaId": "8806BFD5-AF23-418C-978B-206504623B44", "versionEndIncluding": "1.0.19.0617", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "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."}], "id": "CVE-2020-3926", "lastModified": "2022-05-24T20:48:15.250", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 7.8, "confidentialityImpact": "COMPLETE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 4.0, "source": "twcert@cert.org.tw", "type": "Secondary"}]}, "published": "2020-02-03T11:15:12.633", "references": [{"source": "twcert@cert.org.tw", "tags": ["Third Party Advisory"], "url": "https://tvn.twcert.org.tw/taiwanvn/TVN-201910006"}, {"source": "twcert@cert.org.tw", "tags": ["Third Party Advisory"], "url": "https://www.chtsecurity.com/news/1179d48b-7609-4f67-9d7e-3bac2979c6ce"}], "sourceIdentifier": "twcert@cert.org.tw", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-552"}], "source": "nvd@nist.gov", "type": "Primary"}]}