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Reply to topic   Topic: Is my mod_security working as it should be?
Author
techy



Joined: 26 May 2012
Posts: 7

PostPosted: Sat 26 May '12 19:54    Post subject: Is my mod_security working as it should be? Reply with quote

Hi,

I just got this mod installed. With the first try I didn't got any error when trying to load the example URL ?abc../../. But it got logged.

And now, I have a lot of these entries,

Code:
[Sat May 26 17:45:01 2012] [error] [client xxx.xxx.xxx.xxx] ModSecurity: Warning. Match of "within %{tx.allowed_methods}" against "REQUEST_METHOD" required. [file "............./conf/rules/base_rules/modsecurity_crs_30_http_policy.conf"] [line "31"] [id "960032"] [msg "Method is not allowed by policy"] [data "GET"] [severity "CRITICAL"] [tag "POLICY/METHOD_NOT_ALLOWED"] [tag "WASCTC/WASC-15"] [tag "OWASP_TOP_10/A6"] [tag "OWASP_AppSensor/RE1"] [tag "PCI/12.1"] [hostname "domain.com"] [uri "/index.php"] [unique_id "T8D6fAoAARkAABa0IjYAAAAQ"]


The URL that has been loaded is just a fine looking URL and should load without any warnings.

Appreciate any help.
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Steffen
Moderator


Joined: 15 Oct 2005
Posts: 3092
Location: Hilversum, NL, EU

PostPosted: Sun 27 May '12 11:14    Post subject: Reply with quote

That's the rule id "960032" you find in modsecurity_crs_30_http_policy.conf, to check which request methods you allow.

It is is checking against %{tx.allowed_methods} and triggers on the GET method.

In modsecurity_crs_10_config.conf you can find the allowed methods:
...
setvar:'tx.allowed_methods=GET HEAD POST OPTIONS', \
...

Assume you are using modsecurity_crs_10_config.conf, and read the INSTALL in the modsecurity-crs_2.2.4.zip
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