Main Vulnerability Database Vulnerabilities #VU77055

#VU77055 Improper verification of cryptographic signature in phpseclib - CVE-2021-30130

Published: June 7, 2023

Vulnerability identifier: #VU77055

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2021-30130

CWE-ID: CWE-347

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
phpseclib

Software vendor:
phpseclib

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper verification of RSA PKCS#1 v1.5 signature. A remote attacker can perform MitM attack.

Install updates from vendor's website.