SB2020060827 - MitM attack in Couchbase Server Java SDK
Published: June 8, 2020 Updated: April 1, 2021
Security Bulletin ID
SB2020060827
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) Improper validation of certificate with host mismatch (CVE-ID: CVE-2020-9040)
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper validation of hosname in SSL certificates. A remote attacker can supply cryptographically valid certificate that will be accepted by Java SDK's Netty component due to missing hostname verification and perform MitM attack.
Remediation
Install update from vendor's website.