NAME¶
openvas-nasl - Nessus Attack Scripting Language
SYNOPSIS¶
openvas-nasl <[-vh] [-T tracefile] [-s] [-t target] [-c
config_file] [-d] [-sX] > files...
DESCRIPTION¶
openvas-nasl executes a set of NASL scripts against a given target host.
It can also be used to determine if a NASL script has any syntax errors by
running it in parse (-p) or lint (-L) mode.
OPTIONS¶
- -T tracefile
- Makes nasl write verbosely what the script does in the file
tracefile , ala 'set -x' under sh
- -t target
- Apply the NASL script to target which may be a single host
(127.0.0.1), a whole subnet (192.168.1.0/24) or several subnets
(192.168.1.0/24, 192.168.243.0/24)
- -e iface
- Specifies the network interface to be used as the source for established
connections.
- -s
- Sets the return value of safe_checks() to 1. (See the OpenVAS
documentation to know what the safe checks are) Implies -B.
- -D
- Only run the description part of the script.
- -B
- Runs in description mode before running the script.
- -L
- Lint the script (run extended checks).
- -X
- Run the script in authenticated mode. For more information see the
nasl reference manual
- -h
- Show help
- -v
- Show the version of NASL.
- -d
- Output debug information to stderr.
- -k key=value
- Set KB key to vaue. Can be used multiple times.
HISTORY¶
NASL comes from a private project called 'pkt_forge', which was written in late
1998 by Renaud Deraison and which was an interactive shell to forge and send
raw IP packets (this pre-dates Perl's Net::RawIP by a couple of weeks). It was
then extended to do a wide range of network-related operations and integrated
into Nessus as 'NASL'.
The parser was completely hand-written and a pain to work with. In
Mid-2002, Michel Arboi wrote a bison parser for NASL, and he and Renaud
Deraison re-wrote NASL from scratch. Although the "new" NASL was
nearly working as early as August 2002, Michel's laziness made us wait for
early 2003 to have it working completely.
AUTHOR¶
Most of the engine is (C) 2003 Michel Arboi, most of the built-in functions are
(C) 2003 Renaud Deraison
