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Cisco ASA Series Firewall ASDM Configuration Guide
Chapter 11 Configuring Inspection of Basic Internet Protocols
HTTP Inspection
URI filtering: Not configured
Advanced inspections: Not configured
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High
Protocol violation action: Drop connection and log
Drop connections for unsafe methods: Allow only GET and HEAD.
Drop connections for requests with non-ASCII headers: Enabled
URI filtering: Not configured
Advanced inspections: Not configured
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URI Filtering—Opens the URI Filtering dialog box which lets you configure the settings for an
URI filter.
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Default Level—Sets the security level back to the default.
• Details—Shows the Parameters and Inspections tabs to configure additional settings.
Add/Edit HTTP Policy Map (Details)
The Add/Edit HTTP Policy Map (Details) dialog box is accessible as follows:
Configuration > Global Objects > Inspect Maps > HTTP > HTTP Inspect Map > Advanced View
The Add/Edit HTTP Policy Map pane lets you configure the security level and additional settings for
HTTP application inspection maps.
Fields
• Name—When adding an HTTP map, enter the name of the HTTP map. When editing an HTTP map,
the name of the previously configured HTTP map is shown.
• Description—Enter the description of the HTTP map, up to 200 characters in length.
• Security Level—Shows the security level and URI filtering settings to configure.
• Parameters—Tab that lets you configure the parameters for the HTTP inspect map.
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Check for protocol violations—Checks for HTTP protocol violations.
Action—Drop Connection, Reset, Log.
Log—Enable or disable.
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Spoof server string—Replaces the server HTTP header value with the specified string.
Spoof String—Enter a string to substitute for the server header field. Maximum is 82 characters.
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Body Match Maximum—The maximum number of characters in the body of an HTTP message
that should be searched in a body match. Default is 200 bytes. A large number will have a
significant impact on performance.
• Inspections—Tab that shows you the HTTP inspection configuration and lets you add or edit.
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Match Type—Shows the match type, which can be a positive or negative match.
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Criterion—Shows the criterion of the HTTP inspection.
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Value—Shows the value to match in the HTTP inspection.
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Action—Shows the action if the match condition is met.
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Log—Shows the log state.