Crypto-gram for March 15, 2001. In this issue: The Security Patch Treadmill, Harvard's "Uncrackable" Crypto, TCP/IP Initial Sequence Number Flaw, The Doghouse: iBallot.com, The "Death" of IDS?, and 802.11 Security.
15d5a54d2bf20c20aaa2f201d2cd3da75827f22c25859732288b038f6c69f784
OpenBSD 2.7/2.8 patch which causes the timestamp to start at 0 for each connection, confusing nmap's remote uptime guess.
9f8d780d338bfcf9705e50d5403172b5cecfa21ac94b2d592238d13110f33a83
ICQr Information v1.3b reads out ICQ Database (DAT) files including personal data such as passwords.
91d83cd9ab4c8edade7b3a57e3a28aab4eafb03200097a7b8bab5bffec6eded8
This guide intends to teach the basics of buffer overflow to the average C programmer without the need for complex knowledge of assembly. Written with FreeBSD 4.2-Release in mind, but written for x86 *nix.
cb58a5e28f825f34f22a59c92b55d25701b5d23ebf652a924fb49ea2eaa8a82b
tcpspy is a linux administrator's tool that logs information about incoming and outgoing TCP/IP connections: local address, remote address and, probably the most useful feature, the user name. The current version allows you to include and exclude certain users from logging - this may be useful if you suspect one of the users on your system is up to no good but do not want to violate the privacy of the other users.
c7f4e6320da70c87700b46fd93d309f30f3422d7a7a862c35e8e1fcfc277b5b2
Zorp is a new-generation modular proxy firewall suite to fine tune proxy decisions with its built in script language, fully analyze complex protocols (like SSH with several forwarded TCP connections), and utilize out of band authentication techniques (unlike common practices where proxy authentication had to be hacked into the protocol).
e2254f775099eb55ab808331c393b0eea7ab526d7ebdc902e096457995ce54e3
ViperDB is a file checker. It is meant to be run from cron on a regular basis in order to monitor strange activity on a system. It supports checking of size, mtime, privileges, UID/GID, added/deleted files, and (as of 0.9.3) MD5 checksums. Data isn't stored in a single archive as in tripwire, but is split among all the monitored directories. This ViperDB is in fact a fork of the original, as the original authors seem unreachable.
f729531a492d04be06ca697599161e6844352023230474180464d8d06a3c189f
Sniffer is a packet sniffer with a ncurses user interface. Shows network statistics, active TCP connections, UDP and ICMP packets. Features the ability to view and log the 48bit arp protocol. Multithreaded so that the user interface does not interfere with any of the packet capturing methods. View and log the following user space protocols FTP, POP3, HTTP, and more.
bd0fa0c14919b2b589b7677ef4e3e8700cc2b7010cbe8e042769c1c37e53960d