- 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
CVSS 3.0
- Type
- Primary
- Base score
- 6.5
- Impact score
- 3.6
- Exploitability score
- 2.8
- Vector string
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4.3
- Impact score
- 2.9
- Exploitability score
- 8.6
- Vector string
- AV:N/AC:M/Au:N/C:N/I:P/A:N
- Hype score
- Not currently trending
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:signal:private_messenger:*:*:*:*:*:android:*:*",
"vulnerable": true,
"matchCriteriaId": "62886A5F-FA19-4E16-8E1E-195302310554",
"versionEndIncluding": "4.35.3"
},
{
"criteria": "cpe:2.3:a:signal:signal-desktop:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7AB79BE-52F8-409C-99FA-BB273862CDB4",
"versionEndIncluding": "1.23.1"
}
],
"operator": "OR"
}
]
}
]