SB2022010405 - MitM attack in wolfSSL
Published: January 4, 2022
Security Bulletin ID
SB2022010405
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 security vulnerability.
1) Use of insufficiently random values (CVE-ID: N/A)
The vulnerability allows a remote attacker to decrypt TLS session.
The vulnerability exists in wolfSSL implementation when using AES-CBC or DES3 with TLS/DTLS 1.2 or 1.1. The initialization vector used is not random, which may allow an attacker to decrypt the TLS session or perform MitM attack.
Remediation
Install update from vendor's website.