Remove -- usage from session ID creation

Description

When a COOKIE ID containing the character sequence '--' is generated, mod_security thinks it's a SQL injection and returns a 404 error. This sequence should be avoided, or the '-' character could be replaced with '_'. However, the sequence '--' in the session ID creates a lot of problems.

SecRule REQUEST_COOKIES|!REQUEST_COOKIES:/__utm/|!REQUEST_COOKIES:/_pk_ref/|REQUEST_COOKIES_NAMES|ARGS_NAMES|ARGS|XML:/* "@rx (?:/\*!?|\*/|[';]--|--[\s\r\n\v\f]|--[^-]*?-|[^&-]#.*?[\s\r\n\v\f]|;?\\x00)" \

SecRule REQUEST_COOKIES|!REQUEST_COOKIES:/__utm/|!REQUEST_COOKIES:/_pk_ref/|REQUEST_COOKIES_NAMES|ARGS_NAMES|ARGS|XML:/* "(/\*!?|\*/|[';]--|--[\s\r\n\v\f]|(?:--[^-]*?-)|([^\-&])#.*?[\s\r\n\v\f]|;?\\x00)" "phase:2,rev:'2',ver:'OWASP_CRS/2.2.9',maturity:'8',accuracy:'8',\ id:'981231',t:none,t:urlDecodeUni,block,\ msg:'SQL Comment Sequence Detected.'\ ,severity:'2',capture,logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',tag:'OWASP_CRS/WEB_ATTACK/SQL_INJECTION',tag:'WASCTC/WASC-19',tag:'OWASP_TOP_10/A1',tag:'OWASP_AppSensor/CIE1',tag:'PCI/6.5.2',setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:tx.sql_injection_score=+1,setvar:'tx.msg=%{rule.msg}',setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/SQL_INJECTION-%{matched_var_name}=%{tx.0}"

Nell'issue non sono identificati né un file sorgente né un test. Inizia individuando il punto di ingresso per la generazione degli ID di sessione di PHP, riproducendo la generazione di un COOKIE ID contenente '--' e confermando che le modifiche completate impediscano questa sequenza senza compromettere gli ID di sessione.