Good evening, i'm trying to make work modsecurity with core rule set 2.2.4 but i have very strange behaviors. If i enable modsecurity, i cannot access my blog (WordPress 3.3.2) and i get a 403 error and my logs are full with these things:
[Mon Jun 04 21:10:32 2012] [error] [client 93.148.109.162] ModSecurity: Rule b5fcf270 [id "950901"][file "/usr/share/modsecurity-crs_2.2.4/base_rules/modsecurity_crs_41_sql_injection_attacks.conf"][line "77"] - Execution error - PCRE limits exceeded (-8): (null). [hostname "blog.carlopoliti.net"] [uri "/wp-admin/admin.php"] [unique_id "T80kSH8AAAEAAGPFKCMAAAAH"] [Mon Jun 04 21:10:32 2012] [error] [client 93.148.109.162] ModSecurity: Rule b5fcf270 [id "950901"][file "/usr/share/modsecurity-crs_2.2.4/base_rules/modsecurity_crs_41_sql_injection_attacks.conf"][line "77"] - Execution error - PCRE limits exceeded (-8): (null). [hostname "blog.carlopoliti.net"] [uri "/wp-admin/admin.php"] [unique_id "T80kSH8AAAEAAGPFKCMAAAAH"] [Mon Jun 04 21:10:32 2012] [error] [client 93.148.109.162] ModSecurity: Rule b5fcf270 [id "950901"][file "/usr/share/modsecurity-crs_2.2.4/base_rules/modsecurity_crs_41_sql_injection_attacks.conf"][line "77"] - Execution error - PCRE limits exceeded (-8): (null). [hostname "blog.carlopoliti.net"] [uri "/wp-admin/admin.php"] [unique_id "T80kSH8AAAEAAGPFKCMAAAAH"] [Mon Jun 04 21:10:32 2012] [error] [client 93.148.109.162] ModSecurity: Access denied with code 403 (phase 2). Pattern match "([\\\\~\\\\!\\\\@\\\\#\\\\$\\\\%\\\\^\\\\&\\\\*\\\\(\\\\)\\\\-\\\\+\\\\=\\\\{\\\\}\\\\[\\\\]\\\\|\\\\:\\\\;\\"\\\\'\\\\\\xc2\\xb4\\\\\\xe2\\x80\\x99\\\\\\xe2\\x80\\x98\\\\`\\\\<\\\\>].*){8,}" at REQUEST_COOKIES:wp-settings-1. [file "/usr/share/modsecurity-crs_2.2.4/base_rules/modsecurity_crs_41_sql_injection_attacks.conf"] [line "169"] [id "981172"] [rev "2.2.4"] [msg "Restricted SQL Character Anomaly Detection Alert - Total # of special characters exceeded"] [data "=o"] [hostname "blog.carlopoliti.net"] [uri "/wp-admin/admin.php"] [unique_id "T80kSH8AAAEAAGPFKCMAAAAH"] [Mon Jun 04 21:10:33 2012] [error] [client 93.148.109.162] ModSecurity: Unable to retrieve collection (name "global", key "global"). Use SecDataDir to define data directory first. [hostname "blog.carlopoliti.net"] [uri "/custompage/404.css"] [unique_id "T80kSX8AAAEAAGPFKCQAAAAH"] [Mon Jun 04 21:10:33 2012] [error] [client 93.148.109.162] ModSecurity: Access denied with code 403 (phase 2). Pattern match "([\\\\~\\\\!\\\\@\\\\#\\\\$\\\\%\\\\^\\\\&\\\\*\\\\(\\\\)\\\\-\\\\+\\\\=\\\\{\\\\}\\\\[\\\\]\\\\|\\\\:\\\\;\\"\\\\'\\\\\\xc2\\xb4\\\\\\xe2\\x80\\x99\\\\\\xe2\\x80\\x98\\\\`\\\\<\\\\>].*){8,}" at REQUEST_COOKIES:wp-settings-1. [file "/usr/share/modsecurity-crs_2.2.4/base_rules/modsecurity_crs_41_sql_injection_attacks.conf"] [line "169"] [id "981172"] [rev "2.2.4"] [msg "Restricted SQL Character Anomaly Detection Alert - Total # of special characters exceeded"] [data "=o"] [hostname "blog.carlopoliti.net"] [uri "/custompage/404.css"] [unique_id "T80kSX8AAAEAAGPFKCQAAAAH"] [Mon Jun 04 21:10:33 2012] [error] [client 93.148.109.162] ModSecurity: Access denied with code 403 (phase 2). Pattern match "([\\\\~\\\\!\\\\@\\\\#\\\\$\\\\%\\\\^\\\\&\\\\*\\\\(\\\\)\\\\-\\\\+\\\\=\\\\{\\\\}\\\\[\\\\]\\\\|\\\\:\\\\;\\"\\\\'\\\\\\xc2\\xb4\\\\\\xe2\\x80\\x99\\\\\\xe2\\x80\\x98\\\\`\\\\<\\\\>].*){8,}" at REQUEST_COOKIES:wp-settings-1. [file "/usr/share/modsecurity-crs_2.2.4/base_rules/modsecurity_crs_41_sql_injection_attacks.conf"] [line "169"] [id "981172"] [rev "2.2.4"] [msg "Restricted SQL Character Anomaly Detection Alert - Total # of special characters exceeded"] [data "=o"] [hostname "blog.carlopoliti.net"] [uri "/custompage/emailCP.png"] [unique_id "T80kSX8AAAEAAGPfLVoAAAAI"] I have tried to disable these 2 lines and now all works (it seems so) but i'm wondering if there is a way to make it work or i have to disable the line 77 and 169 of file modsecurity_crs_41_sql_injection_attacks.conf? Thanks -- Carlo Politi eMail: ca...@carlopoliti.net www: http://www.carlopoliti.net/ blog: http://blog.carlopoliti.net/ _______________________________________________ Owasp-modsecurity-core-rule-set mailing list Owasp-modsecurity-core-rule-set@lists.owasp.org https://lists.owasp.org/mailman/listinfo/owasp-modsecurity-core-rule-set