Vulnerabilities > CVE-2021-32066 - Improper Handling of Exceptional Conditions vulnerability in multiple products

Summary

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

Vulnerable Configurations

Common Weakness Enumeration (CWE)

• CWE-755 - Improper Handling of Exceptional Conditions

References