Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2015-3644

Severity CVSS v4.0:
Pending analysis
Type:
CWE-284 Improper Access Control
Publication date:
14/05/2015
Last modified:
12/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:stunnel:stunnel:5.00:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.01:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.02:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.03:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.04:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.05:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.06:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.07:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.08:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.09:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.10:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.11:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.12:*:*:*:*:*:*:*
cpe:2.3:a:stunnel:stunnel:5.13:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools