FreeBSD : PuTTY - old-style scp downloads may allow remote code execution (7f0fbb30-e462-11e5-a3f3-080027ef73ec)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

Simon G. Tatham reports :

Many versions of PSCP prior to 0.67 have a stack corruption
vulnerability in their treatment of the 'sink' direction (i.e.
downloading from server to client) of the old-style SCP protocol.

In order for this vulnerability to be exploited, the user must connect
to a malicious server and attempt to download any file.[...] you can
work around it in a vulnerable PSCP by using the -sftp option to force
the use of the newer SFTP protocol, provided your server supports that
protocol.

See also :

http://www.nessus.org/u?514a6019
https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563
http://www.nessus.org/u?952d2ea1

Solution :

Update the affected package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 89727 ()

Bugtraq ID:

CVE ID: CVE-2016-2563

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