[Oisf-users] Errors on startup using ETPro Rules

[Victor Julien]

On 14-04-16 10:42, Lee Walker wrote:
> I've been successfully using the Open rules on my Suricata installs, but
> since upgrading to latest ETPro rules I get the follwoing errors on startup:
>  
> 14/4/2016 -- 08:49:10 - <Error> - [ERRCODE:
> SC_ERR_RULE_KEYWORD_UNKNOWN(102)] - unknown rule keyword 'base64_decode'.
>  
> 14/4/2016 -- 08:49:07 - <Error> - [ERRCODE:
> SC_ERR_INVALID_SIGNATURE(39)] - pcre with /R (relative) needs preceeding
> match in the same buffer
> 
> 14/4/2016 -- 08:49:07 - <Error> - [ERRCODE:
> SC_ERR_INVALID_SIGNATURE(39)] - error parsing signature "alert tcp
> $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"ETPRO
> WEB_SPECIFIC_APPS WP Theme LFI Attempt"; flow:to_server,established;
> content:"GET"; http_method; content:"/wp-content/themes/"; http_uri;
> fast_pattern:only; content:"download.php?file="; http_uri;
> pcre:"/[^&]*(?:%2(?:52e(?:%2(?:52e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)|e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|\.(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|e(?:%2(?:52e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)|e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|\.(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)))|\.(?:%2(?:52e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)|e(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/))|\.(?:%(?:c(?:0%af|1%9c)|(?:25)?2f)|5c|\/)))/Ri";
> reference:url,packetstormsecurity.net/1412-exploits/wptheme-download.txt; classtype:attempted-admin;
> sid:2809398; rev:1;)" from file
> /etc/suricata/pro-rules/rules/web_specific_apps.rules at line 21279
>  
> These errors will be repeated for several different rules and lines.

What Suricata version are you running?

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Victor Julien
http://www.inliniac.net/
PGP: http://www.inliniac.net/victorjulien.asc
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