SB2021040633 - MitM attack in phpseclib
Published: April 6, 2021 Updated: June 7, 2023
Security Bulletin ID
SB2021040633
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper verification of cryptographic signature (CVE-ID: CVE-2021-30130)
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.
Remediation
Install update from vendor's website.