Re: SecRuleUpdateTargetById in 3.0.4

On Tue, Jan 5, 2021 at 9:21 AM Henri Cook <[email protected]> wrote:
>
> Hi everyone,
>
> I attempted an upgrade to 3.0.4 today from 3.0.3. Unfortunately I can't get over a hurdle.
>
> I have an existing rule:
>
> ```
> # Rule 930110 matches "..\u003e" in body (HTML escaped JSON value "..<")
> # Replacing REQUEST_BODY with ARGS_NAMES|ARGS fixes the issue as the rule see
> # the value after Unicode decoding '\u003e' => '>'.
> SecRuleUpdateTargetById 930110 "!REQUEST_BODY"
> SecRuleUpdateTargetById 930110 ARGS_NAMES,ARGS
> ```
>
> Due to modsec issue https://github.com/SpiderLabs/ModSecurity/issues/2251 it seems i'm using the 'non-regex' form of the rule that's fixed in master but not yet released.
>
> First I tried a patch, which failed to apply (any advice on how to patch this from the 3.0.4 tag would be appreciated) with this in my build process:
>
> ```
> curl -fSL https://github.com/SpiderLabs/ModSecurity/commit/1b1fdc055b8071ad3b24573abfe9b96e546c7abf.patch | patch -p1 && \
> ```
>
> When that didn't apply
CHANGES.rej is the only (non-)issue as the patch effectively applies
(inside your modsecurity-v3.0.4 directory) to all other files as .. |
patch --fuzz=0 -p1 .
As far as I can tell, you may edit CHANGES file manually by adding the
content inside CHANGES.rej and then removing the latter.

> I tried (as a temporary workaround) removing the rule, but for some reason it was still triggering in my unit tests. For that I used:
>
> ```
> SecRuleRemoveById 930110
> ```
>
> I don't really know where to go from here, i'm using the CRS 3.2.0 ruleset.
>
> Best Regards,
>
> Henri
> _______________________________________________
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> Commercial ModSecurity Rules and Support from Trustwave's SpiderLabs:
> http://www.modsecurity.org/projects/commercial/rules/
> http://www.modsecurity.org/projects/commercial/support/

Best Professional Regards.

--
Jose R R
http://metztli.it
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