Two security policies for one virtual server
Hello, Many applications are served by a virtual server. Every application except one has UTF-8 as its character set, the other one serves data in ISO-8859-1. They are all protected by the same security policy defined in UTF-8. The ISO application is sometime blocked by the BIP-IP ASM because of its ISO encoding. I created a second security policy in ISO that would be unique the ISO application and associated with its hostname. The hostnames for the applications in UTF-8 are associated to the UTF-8 applications. When I try to add the new security policy in section Local Traffic >> Virtual Server List I get an error message: 010716fd:3: Virtual Server '/Common/iso.abc.com-https-vs' cannot contain policies with conflicting controls. How can I add the new ISO security policy to the virtual server? Thank you Ghislain Pelletier
ASM Bot Defense JS and CSP
Our company has issued a requirement for all applications to enable CSP (Content Security Policy). The problem is one of the first applications to enable this has Bot Defense enabled. Part of PBD is to inject a JAVA script inline which causes an issue with the page not loading per the CSP policy. We opened a support case and F5 level II and the ENE say they can't find a way to make these compatible and this is beyond the scope of Support i.e. engage Professional Services. I'm a long-time F5 user and so this was frustrating, to say the least. Part of our CSP is our scripts have a nonce key generated. PBD script is not being delivered from our server (it's directly injected into the response), and it does not contain our nonce key. This means that the CSP will tell the browser to NOT allow the execution of that script thereby breaking the application. Part of the CSP Rules The browser should accept any JS that is delivered as a file from 'self' which means it's delivered from our web server with a relative path The browser should accept any JS that is delivered to the browser with our nonce key (value in the header) All other JS should be ignored by the browser! So, the only question that we really had for F5 is how do we make PBD JS work with a CSP? The CSP is set up in a basic way and is not customized to our application at all. It seems we either need to have this JS delivered by a file (not directly injected) or the F5 will need to pick up our nonce key and add it to that injection. Has anyone come across this and what methods did you employ to resolve it, i.e. iRule or Traffic policy to set the nonce key on the JS, which is not super ideal? Depending on when ASM/PBD fire, something similar to the following: when HTTP_RESPONSE { # Check if the response header contains a CSP if {[HTTP::header exists "Content-Security-Policy"]} { # Get the CSP header value set csp [HTTP::header value "Content-Security-Policy"] # Check if the CSP contains a nonce if {[string first "nonce-" $csp] != -1} { # Get the nonce value set nonce [string range $csp [string first "nonce-" $csp] [string first ";" $csp]] # Check if the response body contains a script tag if {[string first "<script" [HTTP::payload]] != -1} { # Add the nonce to the script tag HTTP::payload replace [string first "<script" [HTTP::payload]] [string first ">" [HTTP::payload]] "<script nonce=\"$nonce\"" } } } }
Telemetry streaming to Elasticsearch
Hi all I am following a couple of threads since I want to send ASM logging to Elasticsearch like this one fromGreg What I understand is that I need to send an AS3 declaration and a TS declaration. But there are a couple of things not entirely clear to me. 1. Can I remove the iRule, Service_TCP, Pool, Log_Destination, Log_Publisher and Traffic_Log_profile declarations from the AS3 declaration json? In the example the telemetry_asm_security_log_profile does not seem to depend on these? 2. In the AS declaration json an IP address is specified 255.255.255.254 (perhaps just an example since it is a subnet mask) and also in the TS declaration where it is 172.16.60.194. How are the IP in the servers section of the AS3 declaration related to the one in the consumer part in the TS declaration? 3. Intelemetry_asm_security_log_profile the field remoteStorage is set to splunk. According to the reference guide:Reference Guide security-log-profile-application-objectthe allowed values are “remote”, “splunk”, “arcsight”, “bigiq”. I would opt for just remote. Is that the correct choice? Regards Hans
ASM instance creation
HI Team , I have to create an WAF instance similar to the one which is already available . I need help on creating the ASM policy similar to the one which is already used by other VIP . So my ASM policy name is ASM_NETWORK_443 and I have to create an identical policy with name ASM_DRNETWORK_443 . Is there any option to clone the ASM policy or export and import the policy and rename the Policy name ? Kindly help me on this .
ltm policy asm_auto_l7_policy
Hi Experts, We are migrating WAF in an HA pair from i4800 to i5800, UCS is loaded successfully on new pair. while comparing the configurations i found on some policy on previous node the status was legacy and on new node the status is published. what's the difference please? the status is highlighted in red in below config. old node config ltm policy asm_auto_l7_policy__epsite.telenorbank.pk { controls { asm } last-modified 2023-12-08:23:19:30 requires { http } rules { default { actions { 1 { asm enable policy /Common/PTCL-cloud_WAF } } ordinal 1 } } status legacy strategy first-match7 } New Node config ltm policy asm_auto_l7_policy__epsite.telenorbank.pk { controls { asm } last-modified 2024-04-17:13:00:12 requires { http } rules { default { actions { 1 { asm enable policy /Common/PTCL-cloud_WAF } } ordinal 1 } } status published strategy first-match }
