SB2020081157 - Spoofing attack in Telegram Desktop
Published: August 11, 2020 Updated: January 27, 2021
Security Bulletin ID
SB2020081157
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2020-17448)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
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 update from vendor's website.