Penetration Testing mailing list archives
Re: Firewall ACL determinations
From: Alon Swartz <alonsw () netvision net il>
Date: Tue, 26 Feb 2002 03:18:59 +0200
You could use the tool firewalk or even nmap with the -sA or -sW switches. -sA is for an ACK Scan. It could be used to map a rule base by determining whether the FW is stateful or a SYN Blocking packet filter. Nmap will send an ACK packet (indicates a successful receipt of a packet) to each port being scanned. Since there was no established connection, the firewall will reply with a RST packet if the port is not filtered. -sW is for a window Scan. Similar to -sA but uses TCP window size to determine whether ports are filtered, not filtered or open. Hope the above helps. Regards, Alon Swartz. -----Original Message----- From: Kelley John C. J9C548 [mailto:kelleyj () je jfcom mil] Sent: Friday, February 22, 2002 20:17 To: Pen-Test (E-mail) Subject: Firewall ACL determinations All, What 'best practice' tools are available for ACL determination? I have been tasked to develop a full spectrum vulnerability assessment test plan and have not found a great deal on ACL determination. Any info or links are appreciated. Thanks, John ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/ ---------------------------------------------------------------------------- This list is provided by the SecurityFocus Security Intelligence Alert (SIA) Service. For more information on SecurityFocus' SIA service which automatically alerts you to the latest security vulnerabilities please see: https://alerts.securityfocus.com/
Current thread:
- Firewall ACL determinations Kelley John C. J9C548 (Feb 25)
- R: Firewall ACL determinations Carmelo Floridia (Feb 25)
- iis server strings vs. patch level Skip Hans Stellhorn (Feb 28)
- <Possible follow-ups>
- Re: Firewall ACL determinations Alon Swartz (Feb 26)
- R: Firewall ACL determinations Carmelo Floridia (Feb 25)