CVE-2019-10044 Information

Description

Telegram Desktop before 1.5.12 on Windows and the Telegram applications for Android iOS and Linux is 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.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/107610 https://github.com/blazeinfosec/advisories/blob/master/telegram-advisory.txt

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8