5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.004 Low
EPSS
Percentile
74.0%
Johan Olofsson discovered an authentication bypass vulnerability in Stunnel, a program designed to work as an universal SSL tunnel for network daemons. When Stunnel in server mode is used with the redirect option and certificate-based authentication is enabled with “verify = 2” or higher, then only the initial connection is redirected to the hosts specified with “redirect”. This allows a remote attacker to bypass authentication (CVE-2015-3644).
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Mageia | 5 | noarch | stunnel | < 5.03-4.1 | stunnel-5.03-4.1.mga5 |