CVE-2021-37909

WriteRegistry function in TSSServiSign component does not filter and verify users’ input, remote attackers can rewrite to the registry without permissions thus perform hijack attacks to execute arbitrary code.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.twcert.org.tw/tw/cp-132-5093-76f04-1.html	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:tssservisignadapter_project:tssservisignadapter:*:*:*:*:*:windows:*:*

History

No history.

Information

Published : 2021-09-15 19:15

Updated : 2021-09-28 14:33

NVD link : CVE-2021-37909

Mitre link : CVE-2021-37909

CVE.ORG link : CVE-2021-37909

JSON object : View

Products Affected

tssservisignadapter_project

tssservisignadapter

CWE

CWE-20

Improper Input Validation

{"id": "CVE-2021-37909", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "twcert@cert.org.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-09-15T19:15:09.873", "references": [{"url": "https://www.twcert.org.tw/tw/cp-132-5093-76f04-1.html", "tags": ["Third Party Advisory"], "source": "twcert@cert.org.tw"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "twcert@cert.org.tw", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "WriteRegistry function in TSSServiSign component does not filter and verify users\u2019 input, remote attackers can rewrite to the registry without permissions thus perform hijack attacks to execute arbitrary code."}, {"lang": "es", "value": "La funci\u00f3n WriteRegistry en el componente TSSServiSign no filtra ni verifica la entrada de los usuarios, unos atacantes remotos pueden reescribir en el registro sin permisos y as\u00ed llevar a cabo ataques de secuestro para ejecutar c\u00f3digo arbitrario"}], "lastModified": "2021-09-28T14:33:21.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tssservisignadapter_project:tssservisignadapter:*:*:*:*:*:windows:*:*", "vulnerable": true, "matchCriteriaId": "AD8DA276-DE4E-4794-820C-9A58F60CD6C3", "versionEndIncluding": "1.0.20.0316"}], "operator": "OR"}]}], "sourceIdentifier": "twcert@cert.org.tw"}