Background
iQSonar v3 used a “Shell on Shell” approach to SSH scanning. This introduced complications when it came to the complexities and variances introduced by different versions of shells and terminals on different distributions of linux and unix operating systems. The approach effectively emulated what an end user would do on a target machine. The problems came when messages like “You’ve got mail” were printed to the terminal. While a human could simply ignore the text, it introduced many difficulties for iQSonar and often contaminated the results or caused scans to fail.
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In order for this to work the iQSonar scanning user must be added to the sudoers file and REQUIRETTY directive must be disabled either at a user or system level more details available in the scanning pre-requisites document |
Step-by-step guide
- From the UI navigate to Locations > Connections > SHH
- Change commandprefixcode to SUDO
- Change usecommandprefix to True
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The command is:
{set the path};if sudo -l {command}>/dev/null; then sudo {command}; else {command};fi
The precise behaviour might be dependent on the user’s standard shell. ‘if’ is a shell command that can have slightly different behaviors on different shells.
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| SUDO has to be in capital form as above |
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