WinSCP < 5.1.7 Multiple Vulnerabilities

This script is Copyright (C) 2014 Tenable Network Security, Inc.


Synopsis :

The remote Windows host has an application that may be affected by
multiple vulnerabilities.

Description :

The WinSCP program installed on the remote host is a version prior to
5.1.7 and contains code from PuTTY that is potentially affected by the
following vulnerabilities related to PuTTY :

- An overflow error exists that could allow heap
corruption when handling DSA signatures.
(CVE-2013-4206)

- A buffer overflow error exists related to modular
inverse calculation, non-coprime values and DSA
signature verification. (CVE-2013-4207)

- An error exists that could allow disclosure of private
key material. (CVE-2013-4208)

See also :

http://winscp.net/tracker/show_bug.cgi?id=1039
http://winscp.net/eng/docs/history#5.1.7
http://www.nessus.org/u?20c27652
http://www.nessus.org/u?e1b0243c
http://www.nessus.org/u?7bdd07a8

Solution :

Upgrade to WinSCP version 5.1.7 / 5.2.4 beta or later.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows

Nessus Plugin ID: 72389 ()

Bugtraq ID: 61644
61645
61649

CVE ID: CVE-2013-4206
CVE-2013-4207
CVE-2013-4208