Plugin ID | 221 |
Plugin name | OpenCA prior 0.9.1.6 signature verification bypass |
Plugin filename | OpenCA prior 0.9.1.6 signature verification bypass.plugin |
Plugin filesize | 3781 bytes |
Plugin family | CGI |
Plugin created name | Marc Ruef |
Plugin created email | marc dot ruef at computec dot ch |
Plugin created web | http://www.computec.ch |
Plugin created company | computec.ch |
Plugin created date | 2004/09/14 |
Plugin updated name | Marc Ruef |
Plugin updated email | marc dot ruef at computec dot ch |
Plugin updated web | http://www.computec.ch |
Plugin updated company | computec.ch |
Plugin updated date | 2004/11/14 |
Plugin version | 2.0 |
Plugin changelog | Corrected the plugin structure and added the accuracy values in 1.1. Improved the pattern matching and introduced the plugin changelog in 2.0 |
Plugin protocol | tcp |
Plugin port | 80 |
Plugin procedure detection | open|send GET /cgi-bin/pub/pki?cmd=serverInfo HTTP/1.0\n\n|sleep|close|pattern_exists HTTP/#.# ### *Server Information for OpenCA Server Version 0.[0-8].#* OR HTTP/#.# ### *Server Information for OpenCA Server Version 0.9.0.#* OR HTTP/#.# ### *Server Information for OpenCA Server Version 0.9.1.[0-6]* |
Plugin detection accuracy | 85 |
Plugin comment | Check is inspired by the Nessus plugin (see Nessus ID listed in the sources). |
Bug published name | Alexandru Matei |
Bug published email | michael dot bell at cms dot hu-berlin dot de |
Bug published date | 2004/01/16 |
Bug advisory | http://www.openca.org/news/CAN-2004-0004.txt |
Bug affected | OpenCA prior 0.9.2-RC6 |
Bug not affected | OpenCA newer than 0.9.2-RC6 or other solutions |
Bug vulnerability class | Weak Authentication |
Bug description | The remote host seems to be running OpenCA, an open Certificate Authority. The software version prior 0.9.2-RC6 may allow a remote attacker to bypass the signature verification. |
Bug solution | The server should be deactivated or de-installed if not necessary. If this is not possible, you should patch or upgrade the software to the latest version. To make it harder to find the server the HTTP daemon could be configured to listen at another port (e.g. 8081). Try to prevent unwanted connection attempts by filtering traffic with firewalling. Alternation of the application banner can confuse an attacker and let him determine the wrong software. |
Bug fixing time | Approx. 1 hour |
Bug exploit availability | Maybe |
Bug exploit url | http://www.securityfocus.com/bid/9435/exploit/ |
Bug remote | Yes |
Bug local | No |
Bug severity | Medium |
Bug popularity | 7 |
Bug simplicity | 6 |
Bug impact | 8 |
Bug risk | 6 |
Bug Nessus risk | Medium |
Bug check tools | Nessus is able to do the same check. |
Source CVE | CAN-2004-0004 |
Source SecurityFocus BID | 9435 |
Source OSVDB ID | 3615 |
Source Nessus ID | 14715 |
Source Literature | Hacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427 |
Source Misc. | http://www.securityfocus.com/archive/1/349993 |