Re: [mod-security-users] Why was this request put in the audit log?

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I understand the logging parts (I turned on additional parts to try to understand why harmless requests are being placed in the audit log), but why was this  particular HTTP request put into the audit log at all?  What was "wrong" with it?

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------- Original Message -------
On Wednesday, November 9th, 2022 at 10:30 AM, <az...@po...> wrote:

> Hi,
> 
> what is logged depends on SecAuditLogParts directive in
> modsecurity.conf. For more info, see:
> https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual-(v2.x)#secauditlogparts
> 
> azurit
> 
> 
> 
> Citát O Lányi via mod-security-users
> mod...@li...:
> 
> > Hello,
> > 
> > I'm trying to learn to appreciate modsecurity but everything about
> > it is frustrating and confusing to me. I thought I'd try reaching
> > out in hopes someone could help -- this is my last hope before I
> > give up and turn it off.
> > 
> > I am using DetectionOnly mode
> > 
> > What was this put in the audit log? Why are there so many rules
> > listed? Why can't it just tell me simply what rule triggered the
> > inclusion in the log, rather than 75 lines of gibberish? Is this a
> > bug?
> > 
> > --7337282c-A--
> > [09/Nov/2022:07:31:10.081483 --0600] Y2urnn_-qYUkdqabPHje9QAAAFc
> > (REMOTE_IP) 56866 (MY_IP) 443
> > --7337282c-B--
> > GET / HTTP/1.0
> > 
> > --7337282c-F--
> > HTTP/1.1 308 Permanent Redirect
> > Expect-CT: max-age=604800, enforce,
> > report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
> > Referrer-Policy: unsafe-url
> > Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
> > X-Content-Type-Options: nosniff
> > X-Frame-Options: SAMEORIGIN
> > X-XSS-Protection: 1; mode=block
> > Location: https://othersite/
> > Content-Length: 428
> > Connection: close
> > Content-Type: text/html; charset=iso-8859-1
> > 
> > --7337282c-E--
> > 
> > --7337282c-H--
> > Stopwatch: 1668000670057655 23939 (- - -)
> > Stopwatch2: 1668000670057655 23939; combined=976, p1=578, p2=0,
> > p3=48, p4=171, p5=179, sr=131, sw=0, l=0, gc=0
> > Response-Body-Transformed: Dechunked
> > Producer: ModSecurity for Apache/2.9.5
> > (http://www.modsecurity.org/); OWASP_CRS/3.3.2.
> > Server: Apache/2.4.52 (Ubuntu) OpenSSL/3.0.2
> > Engine-Mode: "DETECTION_ONLY"
> > 
> > --7337282c-K--
> > SecAction
> > "phase:1,auditlog,id:900990,nolog,pass,t:none,setvar:tx.crs_setup_version=332"
> > 
> > SecRule "&TX:inbound_anomaly_score_threshold" "@eq 0"
> > "phase:1,auditlog,id:901100,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.inbound_anomaly_score_threshold=5"
> > 
> > SecRule "&TX:outbound_anomaly_score_threshold" "@eq 0"
> > "phase:1,auditlog,id:901110,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.outbound_anomaly_score_threshold=4"
> > 
> > SecRule "&TX:paranoia_level" "@eq 0"
> > "phase:1,auditlog,id:901120,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.paranoia_level=1"
> > 
> > SecRule "&TX:executing_paranoia_level" "@eq 0"
> > "phase:1,auditlog,id:901125,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.executing_paranoia_level=%{TX.PARANOIA_LEVEL}"
> > 
> > SecRule "&TX:sampling_percentage" "@eq 0"
> > "phase:1,auditlog,id:901130,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.sampling_percentage=100"
> > 
> > SecRule "&TX:critical_anomaly_score" "@eq 0"
> > "phase:1,auditlog,id:901140,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.critical_anomaly_score=5"
> > 
> > SecRule "&TX:error_anomaly_score" "@eq 0"
> > "phase:1,auditlog,id:901141,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.error_anomaly_score=4"
> > 
> > SecRule "&TX:warning_anomaly_score" "@eq 0"
> > "phase:1,auditlog,id:901142,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.warning_anomaly_score=3"
> > 
> > SecRule "&TX:notice_anomaly_score" "@eq 0"
> > "phase:1,auditlog,id:901143,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.notice_anomaly_score=2"
> > 
> > SecRule "&TX:do_reput_block" "@eq 0"
> > "phase:1,auditlog,id:901150,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.do_reput_block=0"
> > 
> > SecRule "&TX:reput_block_duration" "@eq 0"
> > "phase:1,auditlog,id:901152,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.reput_block_duration=300"
> > 
> > SecRule "&TX:allowed_methods" "@eq 0"
> > "phase:1,auditlog,id:901160,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:'tx.allowed_methods=GET HEAD POST
> > OPTIONS'"
> > 
> > SecRule "&TX:allowed_request_content_type" "@eq 0"
> > "phase:1,auditlog,id:901162,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:'tx.allowed_request_content_type=|application/x-www-form-urlencoded| |multipart/form-data| |multipart/related| |text/xml|
> > |application/x
> > ml| |application/soap+xml| |application/x-amf| |application/json|
> > |application/cloudevents+json| |application/cloudevents-batch+json|
> > |application/octet-stream| |application/csp-report|
> > |application/xss-auditor-report| |text/plain|'"
> > 
> > SecRule "&TX:allowed_request_content_type_charset" "@eq 0"
> > "phase:1,auditlog,id:901168,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.allowed_request_content_type_charset=utf-8|iso-8859-1|iso-8859-15|windows-1252"
> > 
> > SecRule "&TX:allowed_http_versions" "@eq 0"
> > "phase:1,auditlog,id:901163,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:'tx.allowed_http_versions=HTTP/1.0 HTTP/1.1 HTTP/2
> > HTTP/2.0'"
> > 
> > SecRule "&TX:restricted_extensions" "@eq 0"
> > "phase:1,auditlog,id:901164,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:'tx.restricted_extensions=.asa/ .asax/ .ascx/ .axd/ .backup/ .bak/ .bat/ .cdx/ .cer/ .cfg/ .cmd/ .com/ .config/ .conf/ .cs/ .csproj/ .csr/
> > .dat
> > / .db/ .dbf/ .dll/ .dos/ .htr/ .htw/ .ida/ .idc/ .idq/ .inc/ .ini/
> > .key/ .licx/ .lnk/ .log/ .mdb/ .old/ .pass/ .pdb/ .pol/ .printer/
> > .pwd/ .rdb/ .resources/ .resx/ .sql/ .swp/ .sys/ .vb/ .vbs/ .vbproj/
> > .vsdisco/ .webinfo/ .xsd/ .xsx/'"
> > 
> > SecRule "&TX:restricted_headers" "@eq 0"
> > "phase:1,auditlog,id:901165,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:'tx.restricted_headers=/proxy/ /lock-token/ /content-range/
> > /if/'"
> > 
> > SecRule "&TX:static_extensions" "@eq 0"
> > "phase:1,auditlog,id:901166,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:'tx.static_extensions=/.jpg/ /.jpeg/ /.png/ /.gif/ /.js/ /.css/ /.ico/ /.svg/
> > /.webp/'"
> > 
> > SecRule "&TX:enforce_bodyproc_urlencoded" "@eq 0"
> > "phase:1,auditlog,id:901167,pass,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.enforce_bodyproc_urlencoded=0"
> > 
> > SecAction
> > "phase:1,auditlog,id:901200,pass,t:none,nolog,ver:OWASP_CRS/3.3.2,setvar:tx.anomaly_score=0,setvar:tx.anomaly_score_pl1=0,setvar:tx.anomaly_score_pl2=0,setvar:tx.anomaly_score_pl3=0,setvar:tx.anomaly_score_pl4=0,setvar:tx.sql_injection_score=0
> > ,setvar:tx.xss_score=0,setvar:tx.rfi_score=0,setvar:tx.lfi_score=0,setvar:tx.rce_score=0,setvar:tx.php_injection_score=0,setvar:tx.http_violation_score=0,setvar:tx.session_fixation_score=0,setvar:tx.inbound_anomaly_score=0,setvar:tx.outbound_anomaly_sco
> > re=0,setvar:tx.outbound_anomaly_score_pl1=0,setvar:tx.outbound_anomaly_score_pl2=0,setvar:tx.outbound_anomaly_score_pl3=0,setvar:tx.outbound_anomaly_score_pl4=0,setvar:tx.sql_error_match=0"
> > 
> > SecAction
> > "phase:1,auditlog,id:901321,pass,t:none,nolog,ver:OWASP_CRS/3.3.2,initcol:global=global,initcol:ip=%{remote_addr}_%{tx.ua_hash},setvar:tx.real_ip=%{remote_addr}"
> > 
> > SecRule "REQBODY_PROCESSOR" "!@rx (?:URLENCODED|MULTIPART|XML|JSON)"
> > "phase:1,id:901340,pass,nolog,noauditlog,msg:'Enabling body
> > inspection',tag:paranoia-level/1,ctl:forceRequestBodyVariable=On,ver:OWASP_CRS/3.3.2"
> > 
> > SecRule "TX:sampling_percentage" "@eq 100"
> > "phase:1,auditlog,id:901400,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-SAMPLING"
> > 
> > SecRule "&TX:crs_exclusions_drupal|TX:crs_exclusions_drupal" "@eq 0"
> > "phase:1,auditlog,id:9001000,t:none,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-DRUPAL-RULE-EXCLUSIONS"
> > 
> > SecRule "&TX:crs_exclusions_wordpress|TX:crs_exclusions_wordpress"
> > "@eq 0"
> > "phase:1,auditlog,id:9002000,t:none,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-WORDPRESS"
> > 
> > SecRule "&TX:crs_exclusions_nextcloud|TX:crs_exclusions_nextcloud"
> > "@eq 0"
> > "phase:1,auditlog,id:9003000,t:none,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-NEXTCLOUD"
> > 
> > SecRule "&TX:crs_exclusions_dokuwiki|TX:crs_exclusions_dokuwiki"
> > "@eq 0"
> > "phase:1,auditlog,id:9004000,t:none,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-DOKUWIKI"
> > 
> > SecRule "&TX:crs_exclusions_cpanel|TX:crs_exclusions_cpanel" "@eq 0"
> > "phase:1,auditlog,id:9005000,t:none,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-CPANEL"
> > 
> > SecRule "&TX:crs_exclusions_xenforo|TX:crs_exclusions_xenforo" "@eq
> > 0"
> > "phase:1,auditlog,id:9006000,t:none,nolog,ver:OWASP_CRS/3.3.2,skipAfter:END-XENFORO"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:910013,nolog,skipAfter:END-REQUEST-910-IP-REPUTATION"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:911013,nolog,skipAfter:END-REQUEST-911-METHOD-ENFORCEMENT"
> > 
> > SecRule "&TX:dos_burst_time_slice" "@eq 0"
> > "phase:1,auditlog,id:912100,t:none,nolog,ver:OWASP_CRS/3.3.2,chain,skipAfter:END-DOS-PROTECTION-CHECKS"
> > SecRule "&TX:dos_counter_threshold" "@eq 0" "chain"
> > SecRule "&TX:dos_block_timeout" "@eq 0"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:913013,nolog,skipAfter:END-REQUEST-913-SCANNER-DETECTION"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:920013,nolog,skipAfter:END-REQUEST-920-PROTOCOL-ENFORCEMENT"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:921013,nolog,skipAfter:END-REQUEST-921-PROTOCOL-ATTACK"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:930013,nolog,skipAfter:END-REQUEST-930-APPLICATION-ATTACK-LFI"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:931013,nolog,skipAfter:END-REQUEST-931-APPLICATION-ATTACK-RFI"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:932013,nolog,skipAfter:END-REQUEST-932-APPLICATION-ATTACK-RCE"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:933013,nolog,skipAfter:END-REQUEST-933-APPLICATION-ATTACK-PHP"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:934013,nolog,skipAfter:END-REQUEST-934-APPLICATION-ATTACK-NODEJS"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:941013,nolog,skipAfter:END-REQUEST-941-APPLICATION-ATTACK-XSS"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:942013,nolog,skipAfter:END-REQUEST-942-APPLICATION-ATTACK-SQLI"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:943013,nolog,skipAfter:END-REQUEST-943-APPLICATION-ATTACK-SESSION-FIXATION"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:944013,nolog,skipAfter:END-REQUEST-944-APPLICATION-ATTACK-JAVA"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:949013,nolog,skipAfter:END-REQUEST-949-BLOCKING-EVALUATION"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:1,auditlog,id:980013,nolog,skipAfter:END-RESPONSE-980-CORRELATION"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:3,auditlog,id:950013,nolog,skipAfter:END-RESPONSE-950-DATA-LEAKAGES"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:3,auditlog,id:951013,nolog,skipAfter:END-RESPONSE-951-DATA-LEAKAGES-SQL"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:3,auditlog,id:952013,nolog,skipAfter:END-RESPONSE-952-DATA-LEAKAGES-JAVA"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:3,auditlog,id:953013,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:3,auditlog,id:954013,nolog,skipAfter:END-RESPONSE-954-DATA-LEAKAGES-IIS"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:3,auditlog,id:959013,nolog,skipAfter:END-RESPONSE-959-BLOCKING-EVALUATION"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:4,auditlog,id:950014,nolog,skipAfter:END-RESPONSE-950-DATA-LEAKAGES"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:4,auditlog,id:951014,nolog,skipAfter:END-RESPONSE-951-DATA-LEAKAGES-SQL"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:4,auditlog,id:952014,nolog,skipAfter:END-RESPONSE-952-DATA-LEAKAGES-JAVA"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:4,auditlog,id:953014,nolog,skipAfter:END-RESPONSE-953-DATA-LEAKAGES-PHP"
> > 
> > SecRule "RESPONSE_STATUS" "!@rx ^404$"
> > "phase:4,nolog,auditlog,id:954130,block,capture,t:none,msg:'IIS
> > Information Leakage',logdata:'Matched Data: %{TX.0} found within
> > %{MATCHED_VAR_NAME}:
> > %{MATCHED_VAR}',tag:application-multi,tag:language-multi,tag:pla
> > tform-iis,tag:platform-windows,tag:attack-disclosure,tag:paranoia-level/1,tag:OWASP_CRS,tag:capec/1000/118/116,tag:PCI/6.5.6,ctl:auditLogParts=+E,ver:OWASP_CRS/3.3.2,severity:ERROR,chain"
> > #SecRule "RESPONSE_BODY" "@rx \\bServer Error
> > in.{0,50}?\\bApplication\\b"
> > "capture,t:none,setvar:tx.outbound_anomaly_score_pl1=+%{tx.error_anomaly_score},setvar:tx.anomaly_score_pl1=+%{tx.error_anomaly_score}"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:4,auditlog,id:954014,nolog,skipAfter:END-RESPONSE-954-DATA-LEAKAGES-IIS"
> > 
> > SecRule "TX:PARANOIA_LEVEL" "@ge 1"
> > "phase:4,auditlog,id:959060,pass,t:none,nolog,setvar:tx.outbound_anomaly_score=+%{tx.outbound_anomaly_score_pl1}"
> > 
> > SecRule "TX:EXECUTING_PARANOIA_LEVEL" "@lt 2"
> > "phase:4,auditlog,id:959014,nolog,skipAfter:END-RESPONSE-959-BLOCKING-EVALUATION"
> > 
> > SecRule "&TX:dos_burst_time_slice" "@eq 0"
> > "phase:5,auditlog,id:912110,t:none,nolog,ver:OWASP_CRS/3.3.2,chain,skipAfter:END-DOS-PROTECTION-CHECKS"
> > SecRule "&TX:dos_counter_threshold" "@eq 0" "chain"
> > SecRule "&TX:dos_block_timeout" "@eq 0"
> > 
> > SecAction
> > "phase:5,id:980115,pass,t:none,nolog,noauditlog,ver:OWASP_CRS/3.3.2,setvar:tx.executing_anomaly_score=%{tx.anomaly_score_pl1},setvar:tx.executing_anomaly_score=+%{tx.anomaly_score_pl2},setvar:tx.executing_anomaly_score=+%{tx.anomaly_score_pl3}
> > ,setvar:tx.executing_anomaly_score=+%{tx.anomaly_score_pl4}"
> > 
> > SecRule "TX:INBOUND_ANOMALY_SCORE" "@lt
> > %{tx.inbound_anomaly_score_threshold}"
> > "phase:5,id:980120,pass,t:none,log,noauditlog,msg:'Inbound Anomaly
> > Score (Total Inbound Score: %{TX.INBOUND_ANOMALY_SCORE} -
> > SQLI=%{tx.sql_injection_score},XSS=%{tx.xss_score
> > },RFI=%{tx.rfi_score},LFI=%{tx.lfi_score},RCE=%{tx.rce_score},PHPI=%{tx.php_injection_score},HTTP=%{tx.http_violation_score},SESS=%{tx.session_fixation_score}): individual paranoia level scores: %{TX.ANOMALY_SCORE_PL1}, %{TX.ANOMALY_SCORE_PL2},
> > %{TX.ANO
> > MALY_SCORE_PL3},
> > %{TX.ANOMALY_SCORE_PL4}',tag:event-correlation,ver:OWASP_CRS/3.3.2,chain"
> > #SecRule "TX:MONITOR_ANOMALY_SCORE" "@gt 1"
> > 
> > SecAction
> > "phase:5,id:980145,pass,t:none,nolog,noauditlog,ver:OWASP_CRS/3.3.2,setvar:tx.executing_anomaly_score=%{tx.outbound_anomaly_score_pl1},setvar:tx.executing_anomaly_score=+%{tx.outbound_anomaly_score_pl2},setvar:tx.executing_anomaly_score=+%{tx.
> > outbound_anomaly_score_pl3},setvar:tx.executing_anomaly_score=+%{tx.outbound_anomaly_score_pl4}"
> > 
> > SecRule "TX:OUTBOUND_ANOMALY_SCORE" "@lt
> > %{tx.outbound_anomaly_score_threshold}"
> > "phase:5,id:980150,pass,t:none,log,noauditlog,msg:'Outbound Anomaly
> > Score (Total Outbound Score: %{TX.OUTBOUND_ANOMALY_SCORE}):
> > individual paranoia level scores: %{TX.OUTBO
> > UND_ANOMALY_SCORE_PL1}, %{TX.OUTBOUND_ANOMALY_SCORE_PL2},
> > %{TX.OUTBOUND_ANOMALY_SCORE_PL3},
> > %{TX.OUTBOUND_ANOMALY_SCORE_PL4}',tag:event-correlation,ver:OWASP_CRS/3.3.2,chain"
> > #SecRule "TX:MONITOR_ANOMALY_SCORE" "@gt 1"
> > 
> > --7337282c-Z--
> > 
> > Thanks for any help anyone can offer.
> > 
> > Sent with Proton Mail secure email.
> 
> 
> 
> 
> 
> 
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