Description
I get with upload a image this error:
[:error] ModSecurity: Access denied with code 44 (phase 2). Match of "eq 0" against "MULTIPART_UNMATCHED_BOUNDARY" required. [file "/etc/httpd/conf.d/mod_security.conf"] [line "34"] [id "200003"] [msg "Multipart parser detected a possible unmatched boundary."] [hostname "www.example.com"] [uri "/myupload"] [unique_id "W...w"], referer: https://www.example.com/myupload
[http:error] AH01579: Invalid response status 44, referer: https://www.example.com/myupload
like #652
I upload simple with
<form action="myupload" method="post" accept-charset="utf-8" enctype="multipart/form-data"><input type="file" name="image"><button type="submit" name="submit">Upload</button></form>
one of many many many image-files with this error "--"
I use modsecurity2.9.2-1.el7 and its set as "off". So why its catch this issue?
System: CentOS Linux 7.5.1804 (Core) with Product Plesk Onyx Version 17.5.3
etc/httpd/conf.d/mod_security.conf
# Default recommended configuration SecRuleEngine On SecRequestBodyAccess On SecRule REQUEST_HEADERS:Content-Type "text/xml" \ "id:'200000',phase:1,t:none,t:lowercase,pass,nolog,ctl:requestBodyProcessor=XML" SecRequestBodyLimit 13107200 SecRequestBodyNoFilesLimit 131072 SecRequestBodyInMemoryLimit 131072 SecRequestBodyLimitAction Reject SecRule REQBODY_ERROR "!@eq 0" \ "id:'200001', phase:2,t:none,log,deny,status:400,msg:'Failed to parse request body.',logdata:'%{reqbody_error_msg}',severity:2" SecRule MULTIPART_STRICT_ERROR "!@eq 0" \ "id:'200002',phase:2,t:none,log,deny,status:44,msg:'Multipart request body \ failed strict validation: \ PE %{REQBODY_PROCESSOR_ERROR}, \ BQ %{MULTIPART_BOUNDARY_QUOTED}, \ BW %{MULTIPART_BOUNDARY_WHITESPACE}, \ DB %{MULTIPART_DATA_BEFORE}, \ DA %{MULTIPART_DATA_AFTER}, \ HF %{MULTIPART_HEADER_FOLDING}, \ LF %{MULTIPART_LF_LINE}, \ SM %{MULTIPART_MISSING_SEMICOLON}, \ IQ %{MULTIPART_INVALID_QUOTING}, \ IP %{MULTIPART_INVALID_PART}, \ IH %{MULTIPART_INVALID_HEADER_FOLDING}, \ FL %{MULTIPART_FILE_LIMIT_EXCEEDED}'" SecRule MULTIPART_UNMATCHED_BOUNDARY "!@eq 0" \ "id:'200003',phase:2,t:none,log,deny,status:44,msg:'Multipart parser detected a possible unmatched boundary.'" SecPcreMatchLimit 1000 SecPcreMatchLimitRecursion 1000 SecRule TX:/^MSC_/ "!@streq 0" \ "id:'200004',phase:2,t:none,deny,msg:'ModSecurity internal error flagged: %{MATCHED_VAR_NAME}'" SecResponseBodyAccess Off SecDebugLog /var/log/httpd/modsec_debug.log SecDebugLogLevel 0 SecAuditEngine RelevantOnly SecAuditLogRelevantStatus "^(?:5|4(?!04))" SecAuditLogParts ABIJDEFHZ SecAuditLogType Serial SecAuditLog /var/log/httpd/modsec_audit.log SecArgumentSeparator & SecCookieFormat 0 SecTmpDir /var/lib/mod_security SecDataDir /var/lib/mod_security