Vulnerability   
Search   
    Search 219043 CVE descriptions
and 99761 test descriptions,
access 10,000+ cross references.
Tests   CVE   All  

Test ID:1.3.6.1.4.1.25623.1.0.80010
Category:Settings
Title:HTTP NIDS evasion
Summary:This plugin configures OpenVAS for NIDS evasion (see the 'Prefs' panel).; NIDS evasion options are useful if you want to determine the quality of the expensive NIDS you just bought.;; HTTP evasion techniques :;; - Use HTTP HEAD instead of GET;; - URL encoding:;; - - Hex: change characters to %XX;; - - UTF-16 (double byte): change characters to %00%XX. This should *not* work!;; - - UTF-16 (MS %u): change characters to %uXXXX. This works only with IIS.;; - - Incorrect UTF-8: change characters to invalid multibyte UTF8 sequences.;; - Absolute URI: insert scheme://host/ in front of the relative URI.;; - Double slashes: change every / to //;; - Reverse traversal: change / into /dirname/../;; - - 'Basic' inserts 8 characters random directory names;; - - 'Long' means 1000 character directory name.;; - Self-reference directories: changes every / to /./;; - Premature request ending: just like 'reverse traversal', but the directory; name contains %0d%0a (could be translated to CR LF);; - CGI.pm semicolon separator: uses a semicolon instead of '&' in the query string.;; - Parameter hiding: another form of reverse traversal. The directory contains; %3F (could be translated to ?);; - Dos/Windows syntax: uses \ instead of /;; - Null method: insert %00 between the method and the URI;; - TAB separator: uses TAB instead of SPACE between the method, the URL and the HTTP; version;; - HTTP/0.9 requests: uses HTTP/0.9 requests (method & URI only, no HTTP version field);; 'Premature request ending' and 'Parameter hiding' target 'smart' IDS.;; See the references for more information.;; Warning: those features are experimental and some options may result in false negatives!;; This plugin does not do any security check.
Description:Summary:
This plugin configures OpenVAS for NIDS evasion (see the 'Prefs' panel).
NIDS evasion options are useful if you want to determine the quality of the expensive NIDS you just bought.

HTTP evasion techniques :

- Use HTTP HEAD instead of GET

- URL encoding:

- - Hex: change characters to %XX

- - UTF-16 (double byte): change characters to %00%XX. This should *not* work!

- - UTF-16 (MS %u): change characters to %uXXXX. This works only with IIS.

- - Incorrect UTF-8: change characters to invalid multibyte UTF8 sequences.

- Absolute URI: insert scheme://host/ in front of the relative URI.

- Double slashes: change every / to //

- Reverse traversal: change / into /dirname/../

- - 'Basic' inserts 8 characters random directory names

- - 'Long' means 1000 character directory name.

- Self-reference directories: changes every / to /./

- Premature request ending: just like 'reverse traversal', but the directory
name contains %0d%0a (could be translated to CR LF)

- CGI.pm semicolon separator: uses a semicolon instead of '&' in the query string.

- Parameter hiding: another form of reverse traversal. The directory contains
%3F (could be translated to ?)

- Dos/Windows syntax: uses \ instead of /

- Null method: insert %00 between the method and the URI

- TAB separator: uses TAB instead of SPACE between the method, the URL and the HTTP
version

- HTTP/0.9 requests: uses HTTP/0.9 requests (method & URI only, no HTTP version field)

'Premature request ending' and 'Parameter hiding' target 'smart' IDS.

See the references for more information.

Warning: those features are experimental and some options may result in false negatives!

This plugin does not do any security check.

CVSS Score:
0.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:N

CopyrightThis script is Copyright (C) 2002 Michel Arboi / Renaud Deraison

This is only one of 99761 vulnerability tests in our test suite. Find out more about running a complete security audit.

To run a free test of this vulnerability against your system, register below.




© 1998-2024 E-Soft Inc. All rights reserved.