Quiero saber si modsecurity puede proteger contra la inyección de comandos y la inclusión de archivos. Probé modsecurity con la versión gratuita y ejecuté dvwa que es una página vulnerable. Pero la inyección de comandos es posible incluso si las reglas de seguridad de mod se incluyen en apache.conf. Por favor respóndeme.
Verifique el archivo interno: modsecurity_crs_40_generic_attacks.conf y si su WAF está configurado correctamente, debería reaccionar cuando intente activar la inyección de comandos.
#
# OS Command Injection Attacks
#
# -=[ Rule Logic ]=-
# These rules look for attempts to access OS commands such as curl, wget and cc
# These commands are often used in injection attacks to force the victim web
# application to initiate a connection out to a hacker site to download, compile
# and install malicious toolkits such as those to participate in Botnets.
#
# -=[ References ]=-
# http://projects.webappsec.org/OS-Commanding
# http://www.owasp.org/index.php/Category:OWASP_Top_Ten_Project
#
SecRule REQUEST_COOKIES|!REQUEST_COOKIES:/__utm/|REQUEST_COOKIES_NAMES|ARGS_NAMES|ARGS|XML:/* "(?i:(?:[\;\|\']\W*?\bcc|\b(wget|curl))\b|\/cc(?:[\'\"\|\;\'\-\s]|$))" \
"phase:2,rev:'2',ver:'OWASP_CRS/2.2.8',maturity:'9',accuracy:'8',capture,t:none,t:normalisePath,ctl:auditLogParts=+E,block,msg:'System Command Injection',id:'950907',tag:'OWASP_CRS/WEB_ATTACK/COMMAND_INJECTION',tag:'WASCTC/WASC-31',tag:'OWASP_TOP_10/A1',tag:'PCI/6.5.2',logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',severity:'2',setvar:'tx.msg=%{rule.msg}',setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/COMMAND_INJECTION-%{matched_var_name}=%{tx.0},skipAfter:END_COMMAND_INJECTION1"
SecMarker END_COMMAND_INJECTION1
#
# Command injection
#
SecRule REQUEST_COOKIES|!REQUEST_COOKIES:/__utm/|REQUEST_COOKIES_NAMES|ARGS_NAMES|ARGS|XML:/* "(?:\b(?:(?:n(?:et(?:\b\W+?\blocalgroup|\.exe)|(?:map|c)\.exe)|t(?:racer(?:oute|t)|elnet\.exe|clsh8?|ftp)|(?:w(?:guest|sh)|rcmd|ftp)\.exe|echo\b\W*?\by+)\b|c(?:md(?:(?:\.exe|32)\b|\b\W*?\/c)|d(?:\b\W*?[\/]|\W*?\.\.)|hmod.{0,40}?\+.{0,3}x))|[\;\|\']\W*?\b(?:(?:c(?:h(?:grp|mod|own|sh)|md|pp)|p(?:asswd|ython|erl|ing|s)|n(?:asm|map|c)|f(?:inger|tp)|(?:kil|mai)l|(?:xte)?rm|ls(?:of)?|telnet|uname|echo|id)\b|g(?:\+\+|cc\b)))" \
"phase:2,rev:'3',ver:'OWASP_CRS/2.2.8',maturity:'9',accuracy:'9',capture,t:none,t:cmdLine,ctl:auditLogParts=+E,block,msg:'System Command Injection',id:'950006',tag:'OWASP_CRS/WEB_ATTACK/COMMAND_INJECTION',tag:'WASCTC/WASC-31',tag:'OWASP_TOP_10/A1',tag:'PCI/6.5.2',logdata:'Matched Data: %{TX.0} found within %{MATCHED_VAR_NAME}: %{MATCHED_VAR}',severity:'2',setvar:'tx.msg=%{rule.msg}',setvar:tx.anomaly_score=+%{tx.critical_anomaly_score},setvar:tx.%{rule.id}-OWASP_CRS/WEB_ATTACK/COMMAND_INJECTION-%{matched_var_name}=%{tx.0}"
SecMarker END_COMMAND_INJECTION
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