what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

astaro-6.0.txt

astaro-6.0.txt
Posted Aug 26, 2005
Authored by Oliver Karow | Site oliverkarow.de

Astaro Security Linux 6.0.0.1 suffers from several vulnerabilities.

tags | advisory, vulnerability
systems | linux
SHA-256 | 23dc7633c5a9b447fdb1049d7a5414bb229327bbae59eb7b99df53cbe0999110

astaro-6.0.txt

Change Mirror Download
Astaro Security Linux 6.0 - HTTP CONNECT Access Localhost Weakness
==================================================================

Product:
========

Astaro Security Linux 6.0 is a network security solution, including a
combination of the following security applications:

- Stateful inspection firewall with application proxies
- VPN
- AV
- IDS
- AntiSpam
- ContentFilter


Vuln
====

A proxy is running on Port 8080/TCP, accepting HTTP CONNECT requests
destinated to localhost. Therefore it is f.e. possible to connect to
the installed HTTPd, running on localhost. Other scenarios like
connecting to the SSH-Admin port are possible, depending on the
configuration of the allowed destination ports for the CONNECT method.

Exploiting
==========

No exploit required. Simply netcat to the proxy port and enter the
following command:

CONNECT localhost:80 HTTP/1.0

MISC
====

In addition i found some other, interesting issues, which can be
security relevant, depending on the usage of the product:

1) Sending an invalid, unauthenticated request ("CONNECT localhost 21
HTTP/1.0") to the proxy port delivers the following information:

"Proxy-authorization: Basic LTpwcHBwCg=="

as part of the proxy response.

The string can also be found hardcodet in the binary
"/var/storage/chroot-http/usr/bin/hyperdyper".

This login-credentials are used internaly by the Content Filter
Framework.

2) Astaro can be configured using Webmin. Due to a directory traversal
vuln. is it possible for authenticated webmin users to access files on
the filesystem, which are not accessible via the webmin-gui, and should
only be accessable by console-users:

GET
/index.fpl?SID=1497553306006&id=0555&frameset=active&wfe_download=/../../etc/passwd&fname=MeinePasswd&mime_type=application%2foctet%2dstream HTTP/1.1

3) If an administrator is logged in via webmin, and another
administrator is logging in, the new admin can disconnect/kick the
currently logged in one. Thereby it is possible to supply a message,
that will be automaticly displayed at the kicked admins browser.
However, supplying Script-Code instead of a message leads to an
automated execution of the code in the kicked admins browser.

So, not realy risky but shows missing input filtering.

Its up to the reader to deside about the risk level of 1-3. I just sent
this information for completeness.

Version
========

The vulnerable version of the product is 6.0.0.1

Solution
========

Upgrade to version 6.0.0.2
Upgrade is available at the vendors website.

Vendor
======

http://www.astaro.com

Astaro respondet very fast, and was very cooperative.
Fixes were delivered within a day after informing.

Discovered
==========

oliver karow
10.08.2005
http://www.oliverkarow.de/research/astaro.txt


Login or Register to add favorites

File Archive:

April 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    10 Files
  • 2
    Apr 2nd
    26 Files
  • 3
    Apr 3rd
    40 Files
  • 4
    Apr 4th
    6 Files
  • 5
    Apr 5th
    26 Files
  • 6
    Apr 6th
    0 Files
  • 7
    Apr 7th
    0 Files
  • 8
    Apr 8th
    22 Files
  • 9
    Apr 9th
    14 Files
  • 10
    Apr 10th
    10 Files
  • 11
    Apr 11th
    13 Files
  • 12
    Apr 12th
    14 Files
  • 13
    Apr 13th
    0 Files
  • 14
    Apr 14th
    0 Files
  • 15
    Apr 15th
    30 Files
  • 16
    Apr 16th
    0 Files
  • 17
    Apr 17th
    0 Files
  • 18
    Apr 18th
    0 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close