34 lines
No EOL
1.8 KiB
Text
34 lines
No EOL
1.8 KiB
Text
SoftArtisans FileUp viewsrc.asp remote script source disclosure exploit
|
|
|
|
Advisory Name: SoftArtisans FileUp(TM) viewsrc.asp remote script source disclosure exploit
|
|
Tested and Confirmed Vulerable: SoftArtisans SAFileUp(TM) 5.0.14 (Standard)
|
|
Severity: High Type: Script
|
|
source disclosure From where: Remote
|
|
Discovered by: Inge Henriksen (http://ingehenriksen.blogspot.com/)
|
|
Vendor Status: Notified Overview:
|
|
|
|
SoftArtisans FileUp(TM) is a popular web server component for transactional uploading of files to a
|
|
web server using a web browser.
|
|
|
|
When installing SoftArtisans FileUp(TM) you should avoid installing the samples as viewsrc.asp can
|
|
let remote anonymous users see script source code or configuration settings outside the
|
|
/SAFileUpSamples virtual directory. This is accomplished by modifying the "path" query variable to
|
|
point to files outside the designated directory. A web browser from a remote location is a
|
|
sufficient tool to see the source code or configuration settings in plain text.
|
|
|
|
Proof-of Concept:
|
|
|
|
The following url would show the configuration settings for www.example.xom:
|
|
|
|
http://www.example.xom/SAFileUpSamples/util/viewsrc.asp?path=/SAFileUpSamples/%c0%ae./%c0%ae./web.config
|
|
|
|
|
|
The %c0%ae is Unicode for the "." character on a english language server, the url is therefore
|
|
interpreted by the server as
|
|
http://www.example.xom/SAFileUpSamples/util/viewsrc.asp?path=/SAFileUpSamples/../../web.config, in
|
|
addition the unicode character avoids the security checks inside the code of viewsrc.asp which won't
|
|
let any ".." pass through. Keep in mind that other unicode's will also work. Also note that OS'es
|
|
with other language settings will be vulnerable to different unicodes, thus %c0%ae might not work on
|
|
a chinese server but some other unicode's should work just as well.
|
|
|
|
# milw0rm.com [2006-12-30] |