CVE-2021-1849

An issue in code signature validation was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to bypass Privacy preferences.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://support.apple.com/en-us/HT212317	Vendor Advisory
https://support.apple.com/en-us/HT212323	Vendor Advisory
https://support.apple.com/en-us/HT212324	Vendor Advisory
https://support.apple.com/en-us/HT212325	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

No history.

Information

Published : 2021-09-08 15:15

Updated : 2021-09-20 20:20

NVD link : CVE-2021-1849

Mitre link : CVE-2021-1849

CVE.ORG link : CVE-2021-1849

JSON object : View

Products Affected

apple

tvos
macos
watchos
iphone_os
ipados

CWE

CWE-347

Improper Verification of Cryptographic Signature

{"id": "CVE-2021-1849", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"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": "2021-09-08T15:15:11.150", "references": [{"url": "https://support.apple.com/en-us/HT212317", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT212323", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT212324", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}, {"url": "https://support.apple.com/en-us/HT212325", "tags": ["Vendor Advisory"], "source": "product-security@apple.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-347"}]}], "descriptions": [{"lang": "en", "value": "An issue in code signature validation was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to bypass Privacy preferences."}, {"lang": "es", "value": "Se abord\u00f3 un problema en la comprobaci\u00f3n de firmas de c\u00f3digo con comprobaciones mejoradas. Este problema se corrigi\u00f3 en macOS Big Sur versi\u00f3n 11.3, iOS versi\u00f3n 14.5 e iPadOS versi\u00f3n 14.5, watchOS versi\u00f3n 7.4, tvOS versi\u00f3n 14.5. Una aplicaci\u00f3n maliciosa puede ser capaz de omitir las preferencias de privacidad"}], "lastModified": "2021-09-20T20:20:57.153", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EAAE2C1-EF21-4567-99F1-335D1EF955D1", "versionEndExcluding": "14.5"}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1E12568-6F17-458F-8216-3D6DBC8F6DEE", "versionEndExcluding": "14.5"}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4E699CCC-31F5-458E-A59C-79B3AF143747", "versionEndExcluding": "11.3", "versionStartIncluding": "11.0"}, {"criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D5B77841-F161-47AB-8043-3E0346E3AA25", "versionEndExcluding": "14.5"}, {"criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CFFFE00C-0AA6-4F60-ABF4-E68877BFD8F8", "versionEndExcluding": "7.4"}], "operator": "OR"}]}], "sourceIdentifier": "product-security@apple.com"}