CVE-2019-9970

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 24-03-2019 03:29

Last modified: - 07-04-2022 07:55

Total changes: - 3

Description

Open Whisper Signal (aka Signal-Desktop) through 1.23.1 and the Signal Private Messenger application through 4.35.3 for Android are vulnerable to an IDN homograph attack when displaying messages containing URLs. This occurs because the application produces a clickable link even if (for example) Latin and Cyrillic characters exist in the same domain name, and the available font has an identical representation of characters from different alphabets.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Low

Attack complexity

Network

Attack vector

None

Availability

None

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

Required

User interaction

6.5

Base score

2.8

3.6

Exploitability score

Impact score

Verification logic

vendor=signal AND product=signal-desktop AND versionEndIncluding=1.23.1

vendor=signal AND product=private_messenger AND target_software=android AND versionEndIncluding=4.35.3

Reference

107550-Third Party Advisory, VDB Entry
https://github.com/blazeinfosec/advisories/blob/master/signal-advisory.txt

Keywords

CVE-2019-9970

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2019-9970

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures