From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Sep 03 2004 - 07:04:43 CDT

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TITLE:
NetScreen-IDP scp Directory Traversal Vulnerability

SECUNIA ADVISORY ID:
SA12450

VERIFY ADVISORY:
http://secunia.com/advisories/12450/

CRITICAL:
Less critical

IMPACT:
Manipulation of data

WHERE:
From remote

OPERATING SYSTEM:
NetScreen-IDP 3.x
http://secunia.com/product/3861/
NetScreen-IDP 2.x
http://secunia.com/product/2218/

DESCRIPTION:
Juniper Networks has acknowledged an older vulnerability in OpenSSH
for Netscreen-IDP, which potentially can be exploited by malicious
people to overwrite arbitrary files on a vulnerable device.

The problem is that the scp utility doesn't perform proper input
validation on file names when transferring them. This can be
exploited to overwrite an arbitrary file with the privileges of the
user via a directory traversal attack.

Successful exploitation requires that a user connects to a malicious
SSH server and transfers a file using the scp utility.

The vulnerability affects version 3.0r2 and prior.

SOLUTION:
Updated OpenSSH packages are available via the Juniper Networks CSC
Web Portal.
http://www.juniper.net/support/

Don't connect to untrusted SSH servers and transfer files using the
scp utility.

ORIGINAL ADVISORY:
http://www.juniper.net/support/security/alerts/adv59739.txt

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