[security] File descriptor connecting to nix system and danger of using exec() in python

I have been writing python for quite a while about 2 years to be exact and mostly I am writing network related scripts or API calling scripts, but I have never used the python statement exec before, according to the help the exec is to execute the python statements. So supposed I need to print … Continue reading [security] File descriptor connecting to nix system and danger of using exec() in python →

[security] File upload

The lab uses metasploitable. This lab gives awareness of file upload vulnerability, there are three levels of security - low, medium and high, the objective is to try to upload a forward shell code then connect to it to gain the server access. Low security This is the php code of low security file upload: … Continue reading [security] File upload →

Firewall:Configuring stateful Active/Standby failover using a pair of PIX525

Pre-requisite to do Active/Active and Active/Standby failover 1. If you own a pair of PIX525 you need an unrestricted license to use the failover feature. Licensed features for this platform: Maximum Physical Interfaces : 10 Maximum VLANs : 100 Inside Hosts : Unlimited Failover : Active/Active VPN-DES : Enabled VPN-3DES-AES : Enabled Cut-through Proxy : … Continue reading Firewall:Configuring stateful Active/Standby failover using a pair of PIX525 →

Upgrading ASA from 7.2(4) to 8.2(1)

Upgrading ASA from 7.2(4) to 8.2(1) by Cyrus Lok on Thursday, April 8, 2010 at 8:33pm Verify free disk space, ASA flash allows multiple copies of image files to be loaded as long as it has sufficient space. ciscoasa# dir flash: Directory of disk0:/ 6 -rw- 8515584 08:42:32 Dec 11 2009 asa724-k8.bin 7 -rw- 4181246 … Continue reading Upgrading ASA from 7.2(4) to 8.2(1) →