CVE-2021-34421

The Keybase Client for Android before version 5.8.0 and the Keybase Client for iOS before version 5.8.0 fails to properly remove exploded messages initiated by a user if the receiving user places the chat session in the background while the sending user explodes the messages. This could lead to disclosure of sensitive information which was meant to be deleted from the customer's device.

CVSS v3 3.7 LOW
CVSS v2.0 4.3 MEDIUM

3.7^/10

CVSS v3 : LOW

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://explore.zoom.us/en/trust/security/security-bulletin	Third Party Advisory
https://explore.zoom.us/en/trust/security/security-bulletin	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:keybase:keybase:5.8.0:::::android::
	cpe:2.3:a:keybase:keybase:5.8.0:::::iphone_os::

History

21 Nov 2024, 06:10

Type	Values Removed	Values Added
References	~~() https://explore.zoom.us/en/trust/security/security-bulletin - Third Party Advisory~~	() https://explore.zoom.us/en/trust/security/security-bulletin - Third Party Advisory
CVSS	v2 : ~~4.3~~ v3 : ~~4.3~~	v2 : 4.3 v3 : 3.7

Information

Published : 2021-11-11 23:15

Updated : 2024-11-21 06:10

NVD link : CVE-2021-34421

Mitre link : CVE-2021-34421

CVE.ORG link : CVE-2021-34421

JSON object : View

Products Affected

keybase

keybase

CWE

CWE-459

Incomplete Cleanup

{"id": "CVE-2021-34421", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Secondary", "source": "security@zoom.us", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "published": "2021-11-11T23:15:09.997", "references": [{"url": "https://explore.zoom.us/en/trust/security/security-bulletin", "tags": ["Third Party Advisory"], "source": "security@zoom.us"}, {"url": "https://explore.zoom.us/en/trust/security/security-bulletin", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-459"}]}], "descriptions": [{"lang": "en", "value": "The Keybase Client for Android before version 5.8.0 and the Keybase Client for iOS before version 5.8.0 fails to properly remove exploded messages initiated by a user if the receiving user places the chat session in the background while the sending user explodes the messages. This could lead to disclosure of sensitive information which was meant to be deleted from the customer's device."}, {"lang": "es", "value": "Keybase Client para Android versiones anteriores a 5.8.0 y Keybase Client para iOS versiones anteriores a 5.8.0 no eliminan correctamente los mensajes explotados iniciados por un usuario si el usuario receptor coloca la sesi\u00f3n de chat en segundo plano mientras el usuario emisor explota los mensajes. Esto podr\u00eda conllevar a una divulgaci\u00f3n de informaci\u00f3n confidencial que deb\u00eda ser eliminada del dispositivo del cliente"}], "lastModified": "2024-11-21T06:10:22.130", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:keybase:keybase:5.8.0:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "B10E64A0-3C0E-4ED3-9978-2DE883191A06"}, {"criteria": "cpe:2.3:a:keybase:keybase:5.8.0:*:*:*:*:iphone_os:*:*", "vulnerable": true, "matchCriteriaId": "FC887BBA-4A93-49C7-83F0-F7A5BCD65BA1"}], "operator": "OR"}]}], "sourceIdentifier": "security@zoom.us"}