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[Rebase] Extract dstuser nginx decoders (Branch: 3.12-rebase-old-PRs) (Issue: #597) #598

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[Rebase] Extract dstuser nginx decoders (Branch: 3.12-rebase-old-PRs) (Issue: #597) #598

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17 changes: 16 additions & 1 deletion decoders/0170-nginx_decoders.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,10 +8,12 @@
-->

<!--
- Will extract the srcip.
- Will extract the srcip. Additionally extract the username for basic authentication if present.
- Examples:
- 2009/09/15 20:55:40 [error] 63858#0: *3663 open() "/srv/www/ossec.net/robots.txt" failed (2: No such file or directory), client: 1.2.3.4, server: ossec.net, request: "GET /robots.txt HTTP/1.1", host: "www.ossec.net"
- 2009/09/15 19:51:07 [error] 37992#0: accept() failed (53: Software caused connection abort)
- 2018/05/26 06:46:11 [error] 31963#31963: *28769 user "test user" was not found in "/etc/nginx/conf.d/users.htpasswd", client: 1.2.3.4, server: example.com, request: "GET / HTTP/1.1", host: "example.com"
- 2018/05/27 10:22:20 [error] 31972#31972: *52363 user "user2": password mismatch, client: 1.2.3.4, server: example.com, request: "GET / HTTP/2.0", host: "example.com"
-->
<decoder name="nginx-errorlog">
<prematch>^20\d\d/\d\d/\d\d \d\d:\d\d:\d\d [</prematch>
Expand All @@ -29,6 +31,19 @@ Extract NAXSI WAF alert information https://github.com/nbs-system/naxsi/wiki/nax
<order>srcip,server,uri,learning,vers,total_processed,total_blocked,block,attack,score</order>
</decoder>

<decoder name="nginx-errorlog-user-ip">
<parent>nginx-errorlog</parent>
<prematch offset="after_parent"> user "\.+"</prematch>
<regex offset="after_parent"> user "(\.+)"</regex>
<order>dstuser</order>
</decoder>

<decoder name="nginx-errorlog-user-ip">
<parent>nginx-errorlog</parent>
<regex offset="after_regex">client: (\S+),</regex>
<order>srcip</order>
</decoder>

<decoder name="nginx-errorlog-ip">
<parent>nginx-errorlog</parent>
<prematch offset="after_parent">, client: \S+, server: \S*, request: "\S+ </prematch>
Expand Down