CVE Vulnerability

CVE-2018-9840

The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers to bypass the screen locker feature via certain rapid sequences of actions that include app opening, clicking on cancel, and using the home button.

4.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

6.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/signalapp/Signal-iOS/commits/release/2.23.2 Issue Tracking Patch
https://github.com/signalapp/Signal-iOS/commit/018a35df7b42b4941cb4dfc9f462b37c3fafd9e9 Patch Third Party Advisory
http://nint.en.do/Signal-Bypass-Screen-locker.php Broken Link Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:signal:signal:*:*:*:*:*:iphone_os:*:*
Information

Published : 2018-04-10 05:29

Updated : 2019-10-03 12:03

NVD link : CVE-2018-9840

Mitre link : CVE-2018-9840

Products Affected
No products.
CWE
NVD-CWE-noinfo