SB2019041823 - Improper certificate validation in urllib3 library for Python
Published: April 18, 2019 Updated: June 20, 2021
Security Bulletin ID
SB2019041823
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 Certificate Validation (CVE-ID: CVE-2019-11324)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the urllib3 library for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates. A remote attacker can cause the certificates to be considered trusted contrary to expectations. This is related to use of the "ssl_context", "ca_certs" or "ca_certs_dir" argument.
Remediation
Install update from vendor's website.