SB2015051403 - Improper access control in Stunnel
Published: May 14, 2015 Updated: August 9, 2020
Security Bulletin ID
SB2015051403
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 access control (CVE-ID: CVE-2015-3644)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication.
Remediation
Install update from vendor's website.