#VU27540 Spoofing attack in Telegram products - CVE-2020-12474
Published: May 5, 2020
Vulnerability identifier: #VU27540
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-12474
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Telegram Desktop for Windows
Telegram for Android
Telegram for iOS
Telegram Desktop for Windows
Telegram for Android
Telegram for iOS
Software vendor:
Telegram
Telegram
Description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data passed via a public URL or a group chat invitation URL. A remote attacker can perform an IDN Homograph attack via Punycode.
Remediation
Install updates from vendor's website.