Input validation error in Telegram Desktop for Windows - CVE-2020-17448
Published: August 11, 2020 / Updated: January 27, 2021
Vulnerability identifier: #VU50069
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-17448
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Telegram Desktop for Windows
Telegram Desktop for Windows
Software vendor:
Telegram
Telegram
Description
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing files without extensions. A remote attacker can pass a malicious file without file extension with a spoofed content type and compromise the affected system.
Remediation
Install updates from vendor's website.