Script `cics-enum`

Script types: portrule
Categories: intrusive, brute
Download: https://svn.nmap.org/nmap/scripts/cics-enum.nse

Script Summary

CICS transaction ID enumerator for IBM mainframes. This script is based on mainframe_brute by Dominic White (https://github.com/sensepost/mainframe_brute). However, this script doesn't rely on any third party libraries or tools and instead uses the NSE TN3270 library which emulates a TN3270 screen in lua.

CICS only allows for 4 byte transaction IDs, that is the only specific rule found for CICS transaction IDs.

Script Arguments

cics-enum.commands: Commands in a semi-colon separated list needed to access CICS. Defaults to CICS.
cics-enum.path: Folder used to store valid transaction id 'screenshots' Defaults to None and doesn't store anything.
idlist: Path to list of transaction IDs. Defaults to the list of CICS transactions from IBM.
cics-enum.pass: Password to use for authenticated enumeration
cics-enum.user: Username to use for authenticated enumeration
brute.credfile, brute.delay, brute.emptypass, brute.firstonly, brute.guesses, brute.mode, brute.passonly, brute.retries, brute.start, brute.threads, brute.unique, brute.useraspass: See the documentation for the brute library.
creds.[service], creds.global: See the documentation for the creds library.
passdb, unpwdb.passlimit, unpwdb.timelimit, unpwdb.userlimit, userdb: See the documentation for the unpwdb library.

Example Usage

nmap --script=cics-enum -p 23 <targets>

nmap --script=cics-enum --script-args=idlist=default_cics.txt,
cics-enum.command="exit;logon applid(cics42)",
cics-enum.path="/home/dade/screenshots/",cics-enum.noSSL=true -p 23 <targets>

Script Output

PORT   STATE SERVICE
23/tcp open  tn3270
| cics-enum:
|   Accounts:
|     CBAM: Valid - CICS Transaction ID
|     CETR: Valid - CICS Transaction ID
|     CEST: Valid - CICS Transaction ID
|     CMSG: Valid - CICS Transaction ID
|     CEDA: Valid - CICS Transaction ID
|     CEDF: Potentially Valid - CICS Transaction ID
|     DSNC: Valid - CICS Transaction ID
|_  Statistics: Performed 31 guesses in 114 seconds, average tps: 0

Requires

Author:

Philip Young