FreeBSD : stunnel -- Remote Code Execution (c97219b6-843d-11e2-b131-000c299b62e1)

Medium Nessus Plugin ID 65003


The remote FreeBSD host is missing a security-related update.


Michal Trojnara reports :

64-bit versions of stunnel with the following conditions : * NTLM authentication enabled * CONNECT protocol negotiation enabled * Configured in SSL client mode * An attacker that can either control the proxy server specified in the 'connect' option or execute MITM attacks on the TCP session between stunnel and the proxy

Can be exploited for remote code execution. The code is executed within the configured chroot directory, with privileges of the configured user and group.


Update the affected package.

See Also

Plugin Details

Severity: Medium

ID: 65003

File Name: freebsd_pkg_c97219b6843d11e2b131000c299b62e1.nasl

Version: $Revision: 1.12 $

Type: local

Published: 2013/03/05

Modified: 2014/04/20

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:stunnel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2013/03/03

Vulnerability Publication Date: 2013/03/03

Reference Information

CVE: CVE-2013-1762