Sophos Xg Web Server Protection



With support for Server Name Indication (SNI), web server protection will present the correct server to each client, based on the requested hostname. Go to Firewall and select IPv4 using the filter switch. Click + Add firewall rule and Business application rule. Enter the general rule details.

Navigate to Rules and policies Firewall rules Add firewall rule New firewall rule. In the Action field, select Protect with web server protection. In the Preconfigured template field, select Microsoft Remote Desktop Web 2008 and R2. Fill in the required details. Question about: Sophos XG 17 - Web Server - Protection Policies - Antivirus - download/upload Hi guys, I have a doubt about the referential of the upload/download for the Antivirus Scan in Sophos XG server protection. One of the key features of the Sophos XG Firewall is Web Protection, which allows for the scanning and categorization of web related traffic. Websites may be allowed, blocked, or display a warning to keep web browsing safe and productive. Web server You can protect web servers against Layer 7 (application) vulnerability exploits. These attacks include cookie, URL, and form manipulation. Use these settings to define web servers, protection policies, and authentication policies for use in Web Application Firewall (WAF) rules.

With WAF rules, you can protect web applications from attacks and data leakage by filtering HTTP traffic.

You configure a WAF rule for an IP address assigned to a network interface, a port, and one or more domain names. XG Firewall matches traffic based on the IP address assigned to the interface.

For HTTPS traffic, it uses Server Name Indication (SNI) to determine the server that corresponds to the hostname in the client request.

  1. Go to Rules and policies > Firewall. Select IPv4 and select Add firewall rule.
  2. Rules are turned on by default. You can turn off a rule if you don’t want to apply its matching criteria.
  3. Enter the general details.

    Name

    Description

    Rule name

    Enter a name.

    Rule position

    Specify the position of the rule.

    Rule group

    Specify the rule group to add the firewall rule to. You can also create a new rule group by using Create new from the list.

    If you select Automatic, the firewall rule is added to an existing group based on first match with rule type and source-destination zones.

    ActionSelect Protect with web server protection.

    Preconfigured template

    Select a template to apply:

    None: Specify the web server protection details.

    Exchange Autodiscover

    Exchange Outlook Anywhere

    Exchange General Instruction manual for mcculloch model mac 130 chainsaw.

    Microsoft Lync

    Microsoft Remote Desktop Gateway 2008 and R2

    Microsoft Remote Desktop Web 2008 and R2

    Microsoft Sharepoint 2010 and 2013

  4. Enter the Hosted server details.

    Name

    Description

    For this article I will be using a Scarlett 2i2 to demonstrate the basics of recording into Audition, however, the below setup will be similar for all Focusrite interfaces. Upon opening Audition, navigate to the Edit menu Preferences Audio Hardware and open this. Ensure the Device Class is set to ASIO and the Device to Focusrite USB ASIO (or the specific driver for your interface - it may be named differently). Focusrite scarlett 2i2 with adobe audition.

    Hosted address

    Select the public IP address assigned to an interface through which users access the internal server or host. The WAF rule is bound to the IP address assigned to the interface.

    You can use the public IP address assigned to the interface or use an alias to bind the required public IP address.

    When a client establishes a connection and accesses the web server, the web server obtains the interface address of the web application firewall (WAF) and not the client’s IP address. The HTTP header X-Forwarded-For carries the client’s IP address.

    Listening port

    Enter the port number on which to reach the hosted web server. The defaults are port 80 for HTTP and port 443 for HTTPS.

    You can use the same port (for example, 443) for SSL VPN and WAF. In this case, SSL VPN works on any IP address except the IP address (Hosted address) configured for WAF.

    WAF can't share the same port as the user portal. The default user portal port is 443.

    HTTPS

    If you turn this on, the hosted server is accessible through HTTPS and not through HTTP.

    HTTPS certificate

    If you selected HTTPS, select the certificate.

    XG Firewall supports SNI (Server Name Indication), allowing you to create more than one virtual web server that's accessible over the same IP address and port. You can assign a different certificate to each server. Servers are presented to clients based on the requested hostname.

    To create or upload a certificate, go to Certificates > Certificates.

    Redirect HTTP

    Select to redirect port 80 traffic to port 443.

    Domains

    Enter the FQDN configured for the web server, for example, shop.example.com.

    If you've turned on HTTPS, domain names of the selected HTTPS certificate show in the list. You can edit or delete these or add new domain names.

    You can use the wildcard *. at the start of a domain name only.

    Example: *.company.com

    A single WAF policy supports multiple wildcard domains. Virtual web servers with wildcard domains are only matched when there are no virtual web servers with specific domains configured.

    Example: A client request to the domain, test.company.com, will match with test.company.com before it matches with *.company.com before matching with *.com.

  5. Specify the details of the Protected servers. You can specify the web servers, authentication method, and allowed and blocked client networks. If you select path-specific routing, in addition to these settings, you can bind sessions to servers, specify the primary and backup servers, and use the WebSocket protocol.
    Note If you select multiple web servers, requests are balanced between the webservers.

    If you don't want to configure path-specific routing, specify the Web servers and Access permissions.

    Name

    Description

    Web server

    Select the web servers from the Web server list. Alternatively, you can create new ones. You can see the selected web servers under Selected web servers.
    Allowed client networks

    Specify the IP addresses and networks that can connect to the hosted web server.

    Blocked client networks

    Specify the IP addresses and networks to block from connecting to the hosted web server.

    Authentication

    Specify an authentication profile for web applications.

  6. Optional Select Path-specific routing to forward specific path requests to the selected web servers. For example, if you specify the domain www.test.com, the path /web, and the web server Web server 1, a request for www.test.com/web is forwarded to Web server 1.
    NoteXG Firewall doesn't evaluate requests based on the order of path listing. It applies the paths, starting with the longest path and ending with the default path route. The default path is used only if a more specific path doesn't match the request.
    Some instances in which you can specify path-specific routing are as follows:
    • Send requests with a specific path (example: /products/) to a specific web server.
    • Bind each session to a web server, using Sticky session cookie. Example: If you host an e-commerce site and want a single server to serve users for the duration of a shopping session.
    • Send all requests to the specified web server with the others remaining as backup servers, using Hot-standby mode.

    Name

    Description

    Default path (path /)Select the edit button and select a web server for the default path.

    Requests that don't match a listed path are sent to the default route. If you delete the default route, XG Firewall denies requests that don't match a listed path with a 404 Not found response.

    Add new path

    Select to add a new path.

    You can add a path if you've added a web server.

    Path

    Enter the website path. Example: /products/

    Web serverSelect the web servers from the Web server list. Alternatively, you can create new ones. You can see the selected web servers under Selected web servers.
    AuthenticationSpecify an authentication profile for web applications.
    Allowed client networksSpecify the IP addresses and networks that can connect to the hosted web server.

    XG Firewall only implements the protection for IP host type IP and Network. Don't specify an IP range or IP list.

    Blocked client networks

    Specify the IP addresses and networks to block from connecting to the hosted web server.

    XG Firewall only implements the protection for IP host type IP and Network. Don't specify an IP range or IP list.

    Sticky session cookie

    Turn it on to bind a session to a web server. XG Firewall forwards a cookie to the user’s browser, enabling it to route requests from the browser to the same web server.

    If the server isn't available, the cookie is updated, and the session is switched to another web server.

    Hot-standby mode

    Turn it on to send all requests to the first selected web server. The other web servers remain as backup servers and are used if the first server fails.

    When the main server starts functioning again, the sessions are switched back to it. If you select Sticky session cookie, the session continues with the backup web server.

    WebSocket passthrough

    Turn it on to allow applications hosted on the specified site path to use the WebSocket protocol.

    Since RFC standards don't specify the protocol's data format, checks can't be implemented and WebSocket traffic is allowed without protection.

  7. Select Add new exception to specify the security checks to skip.

    Select the paths, sources, and security checks to skip. You can specify more than one exception in a WAF rule.

    Name

    Description

    Paths

    Specify the paths for which you want to create an exception.

    You can use wildcards in the paths. Example: /products/*/images/*

    Operation

    Select the Boolean operation for paths and source networks.

    Sources

    Specify the IP addresses, range, list, or networks from which the traffic originates.

    Cookie signing

    Skips check for cookie tampering.

    Cookie signing mitigates attempts to obtain private session data and engage in fraudulent activity by tampering with cookies. When the web server sets a cookie, a second cookie is added to the first cookie containing a hash built from the name and value of the primary cookie and a secret that is known only to XG Firewall. If a request can't provide the correct cookie pair, the cookie is dropped.

    Static URL hardening

    Allows rewritten links for the specified paths and source networks.

    Static URL hardening prevents users from manually constructing deep links that lead to unauthorized access. When a client requests a website, all static URLs of the website are signed using a procedure similar to cookie signing. In addition, the response from the web server is analyzed regarding which links can be validly requested next.

    When you turn on static URL hardening, the entries for URL paths become case-sensitive. For example, if you add the path /rule.html and users enter /Rule.html, XG Firewall reports that the signature can't be found.

    Form hardening

    Skips checks for web form rewriting.

    To prevent tampering with forms, XG Firewall saves the original structure of a web form and signs it. If the structure has changed when the form is submitted, XG Firewall rejects the request.

    Antivirus

    Skips anti-virus scanning for requests from the specified source networks and to the paths that you specify.

    Block clients with bad reputation

    Skips checks for clients that have a bad reputation according to real-time blackhole lists (RBLs) and GeoIP information.
  8. Specify the advanced protection policies.
    Name
    Description

    Protection

    Specify a protection policy for the servers.

    Intrusion prevention

    Specify an intrusion prevention policy.

    Traffic shaping

    Specify a traffic shaping policy to allocate bandwidth.

  9. Specify the Advanced settings.

    Name

    Description

    Disable compression support

    When clients request compressed data, XG Firewall sends data in compressed form.

    Select this setting to turn off compression if web pages appear incorrectly or if users experience content-encoding errors. XG Firewall then requests uncompressed data from web servers and sends it to the client irrespective of the request’s encoding parameter.

    Rewrite HTML

    Select to rewrite the links of returned web pages to retain link validity.

    Example: If a web server's hostname is yourcompany.local, but the hosted web server’s hostname is yourcompany.com, absolute links like [a href='http://yourcompany.local/'] are broken if the link is not rewritten to [a href='http://yourcompany.com/'] before delivery to the client.

    You don't need to select this option if yourcompany.com is configured on your web server or if internal links on your web pages are always realized as relative links.

    We recommend that you use the option with Microsoft Outlook web access or SharePoint portal server.

    HTML rewriting affects all files with HTTP content type text/* or *xml*. * is a wildcard. To prevent corruption during HTML rewriting, make sure that other file types (example: binary files) have the correct HTTP content type.

    Rewrite cookies

    Select to rewrite cookies of the returned web pages.

    Pass host header

    Select to forward the host header requested by the client to the web server.

    You can use this to match the requested hostname with the web server when you've hosted more than one website on a server.

  10. Click Save.
    When you save a new or edited web server protection rule, XG Firewall restarts all web server rules. Live connections using any of these rules will be lost and need to be re-established.
Sophos Xg Web Server Protection
You can see the WAF rule you created in the Firewall rules table.

The WAF rules protect applications and websites hosted on physical or cloud-based web servers from exploits and attacks.

SophosSophos Xg Web Server Protection

XG Firewall acts as a reverse proxy, protecting your internal and external web servers. You can create WAF rules for IPv4 traffic.

You can use the WAF rules to specify virtual web servers and translate these into physical servers without configuring DNAT and firewall rules. You can also protect web applications, such as Salesforce and Microsoft applications.

XG Firewall offers preconfigured WAF rule templates with specific paths and protection policies for Exchange Autodiscover, Outlook Anywhere (Outlook 2007, 2010, 2013), Outlook Web Access (in an Exchange general rule), Lync, Sharepoint (2010 and 2013), Remote Desktop Gateway 2008 R2, and Remote Desktop Web 2008 R2.

WAF rules are part of firewall rules. To create a WAF rule, you need to add a firewall rule and set the action to Protect with web server protection.

WAF functionality

XG Firewall supports HTTPS protocol with SNI (Server Name Indication), allowing you to create more than one virtual web server over the same IP address and port. The WAF rules support wildcard domains.

You can forward URL requests to specific web servers, bind sessions to a web server, or send all requests to a primary web server, using the others as backup servers. Traffic shaping policies added to the WAF rules allow you to allocate bandwidth and prioritize traffic based on a schedule.

Protection and authentication

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Sophos Xg Web Server Protection Windows 10

Protection

Protection policies: You can add intrusion prevention and protection policies to the WAF rules. Protection policies allow you to protect web servers from vulerability exploits, such as cookie, URL, and form manipulation. They also protect web servers from application and cross-site scripting (XSS) attacks. You can specify the filter strength for common threats.

The exceptions you create in WAF rules allow you to skip some types of security checks for the paths and sources you specify.

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To prevent slow HTTP denial-of-service (DoS) attacks and enforce TLS version controls, go to Web server > General settings.

Sophos Xg 210 Firewall

Authentication policies: In WAF rules, you can specify the client networks to allow or block. You can also add authentication policies to WAF rules to protect web servers using basic or form-based reverse-proxy authentication. The client authentication settings in these policies allow you to control access to the paths specified in the WAF rule.

Sophos Xg Models

Authentication templates: You can upload pre-configured HTML form templates. For customizable HTML and CSS templates, go to the authentication template help page.