Hi,
I think everyone misses the threat to the sever from viruses and
warms. You should keep your server up to date to protect from viruses
and you should also check fr uploaded files for viruses and warms. If it
is Microsoft Office document, you should also check fr the embedded macros.
---Hemil
[Net-square]
c0redump@ackers.org.uk wrote:
Hi Alexander,
There are huge security implications of allowing users to upload to a
web server. Off the top of my head I'm thinking of things like an
evil user being able to use a phpshell via an evil .php page. The
list is endless.
However, here are a few links you may find interesting.
http://www.acunetix.com/websitesecurity/php-security-4.htm
http://www.developershome.com/wap/wapUpload/wap_upload.asp?page=security
Again, it depends on whether you're running IIS or Apache as to the
seriousness of the security risk.
Good luck.
Tom
----- Original Message ----- From: Alexander Berezhnoy
To: webappsec@securityfocus.com
Sent: Thursday, November 09, 2006 9:12 AM
Subject: Files upload security considerations
Hi!
Recently we have got a new requirement for our system which consists
in allowing customers to send us their scanned documents. In this
connexion, I want to find an information about corresponding security
considerations with.
Namely,
- Ways of file delivery (HTTP POST, FTP, e-mail)
- Main risks
- Mitigations
- Formats (JPG, GIF, PDF)
- Signatures
- Known and historic vulnerabilities
We use Weblogic and Struts.
I realize, that there is not enough information to make any decision,
but, at least, there sould be some common considerations and "best
practices".
Thanks in advance,
Alexander.
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Traditional approaches to securing these assets no longer apply.
Download the "Addressing Challenges in Application Security" whitepaper
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