Executive Summary
Summary | |
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Title | stunnel4 security update |
Informations | |||
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Name | DSA-3299 | First vendor Publication | 2015-07-02 |
Vendor | Debian | Last vendor Modification | 2015-07-02 |
Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N) | |||
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Cvss Base Score | 5.8 | Attack Range | Network |
Cvss Impact Score | 4.9 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
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. For the stable distribution (jessie), this problem has been fixed in version 3:5.06-2+deb8u1. For the testing distribution (stretch), this problem has been fixed in version 3:5.18-1. For the unstable distribution (sid), this problem has been fixed in version 3:5.18-1. We recommend that you upgrade your stunnel4 packages. |
Original Source
Url : http://www.debian.org/security/2015/dsa-3299 |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-284 | Access Control (Authorization) Issues |
CPE : Common Platform Enumeration
Information Assurance Vulnerability Management (IAVM)
Date | Description |
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2015-05-21 | IAVM : 2015-B-0063 - Stunnel Authentication Bypass Vulnerability Severity : Category I - VMSKEY : V0060757 |
Nessus® Vulnerability Scanner
Date | Description |
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2015-07-06 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-3299.nasl - Type : ACT_GATHER_INFO |
2015-06-16 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2015-1062-1.nasl - Type : ACT_GATHER_INFO |
2015-05-20 | Name : The remote Windows host contains a program that is affected by an authenticat... File : stunnel_5_14.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2015-07-08 13:28:46 |
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2015-07-02 21:29:32 |
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