Looptech logo

Search Looptech

Back to solutions

Web Application Security

Technology solution

Web Application Firewall

Inspect web requests before they reach the application and enforce rules for injection and XSS with testable exceptions.

What is this solution?

A WAF operates at the application layer on HTTP and HTTPS traffic routed through inspection. It parses paths, headers, parameters, or bodies where supported and applies rules to allow, log, or block. Unlike a network firewall, it reasons about application requests; it does not replace fixing application vulnerabilities or authorization logic.

A web application firewall performs HTTP request inspection. WAF virtual patching can reduce exposure while the underlying application is fixed.

Practical example

A public web form receives unusual requests. The team checks the rule against legitimate and suspicious traffic before enabling blocking.

Technical summary and scope of use

Technical explanation

These capabilities describe this layer within the integrated protection architecture. Availability depends on the licensed components and integrations.

Scope of use

Review the HTTP path, where TLS terminates, and the impact on legitimate requests. Gateway protection does not replace application fixes.

Need indicators

This capability is usually relevant when these signals appear in the operating environment.

Internet-exposed applications.
Legacy apps that cannot be fixed quickly.
Recurring injection or exploitation attempts.

What it delivers

Core capabilities that turn the requirement into practical controls.

Web application protection
Connection and protocol management
Session and identity protection

Expected value

The impact security teams and leadership can expect from the right implementation.

Lower exploitation risk
Better application-layer visibility
Faster protection before code remediation

Technical capabilities

Feature availability depends on product version, target systems, deployment, and integrations.

Web application protection

  • Check each HTTP(S) request before it passes to the application

    Inspect a sample in the supported scope and compare the signals with both normal and unusual activity.

  • Negative protection models through banned lists to detect known attacks such as injection and XSS

    Inspect input for known attack patterns; inspection does not replace fixing the application.

  • Smart discovery patterns target families with complete attacks and not just single flaws

    Combine relevant detection signals and review blocking impact on legitimate traffic before production.

  • Protocol and request normalization to prevent filter bypass

    Normalize HTTP requests before rule evaluation so differences in encoding or parsing do not bypass inspection.

  • Positive security model: deny requests unless explicitly allowed

    Test the scenario that triggers protection and a similar legitimate case to tune false positives.

  • Detection of deviations from normal behavior using anomaly detection

    Correlate activity with its context to surface anomalies for review without treating every deviation as an incident.

  • Discover bots and browsing programs that try to appear as ordinary users

    Distinguish suspicious automation from normal traffic and test exceptions for legitimate integrations.

  • Protection from DoS on Seventh Class

    Gateway controls limit abusive requests within available capacity; volumetric floods may need upstream protection.

  • Protection against bots and automatic attacks

    Distinguish suspicious automation from normal traffic and test exceptions for legitimate integrations.

  • Threat Intelligence, Webroot Feed Integration and GEO Filters

    Combine relevant detection signals and review blocking impact on legitimate traffic before production.

Connection and protocol management

  • HTTP(S) reverse proxy

    Receive connections in front of the service, then apply policy before forwarding requests.

  • TLS termination

    Terminate TLS at the gateway for inspection and define how the connection to the application is protected.

  • OCSP and OCSP stapling

    Check certificate revocation status and validate connection behavior when status lookup is unavailable.

  • Support to Encrypt

    Integrate certificate enrollment or renewal with a compatible issuer; test authorization, renewal, and revocation.

  • Integrated with HSM

    Integrate key operations with hardware protection where supported and review key export restrictions.

  • Service virtualization and content rewriting

    Expose or rewrite service paths or content and verify that expected application behavior is preserved.

  • ICAP interface high availability

    Send covered content to an external inspection service and define gateway behavior if the service is unavailable.

Session and identity protection

  • Cookie protection

    Identify which cookies are protected and test application behavior when their values change or the session expires.

  • CSRF tokens

    Verify session-bound proof before accepting state-changing requests, as appropriate to the application.

  • URL encryption

    Identify the URL elements covered by the feature and test saved links and redirects.

  • form protection

    Verify which form fields and values protection rules allow before forwarding the request.

  • Dynamic Value Endorsement

    Associate users or groups with authorized scope and review how membership changes affect access.

  • Upstream authentication

    Authenticate users before forwarding requests to the integrated application and test rejection of gateway bypass paths.

  • Access control when integrated with the identity system

    Identify both integration endpoints and the data they exchange; verify behavior if either endpoint is unavailable.

  • Single Sign-On

    Associate users or groups with authorized scope and review how membership changes affect access.

  • Enforcement Point for Access Rules

    Turn organizational requirements into testable settings and define who may approve exceptions.

  • Secure session management

    Set session lifetime and termination conditions, and test rejection after expiry.

  • JWT and Connecting JWKS servers

    Verify token signature, issuer, audience, and expiry before accepting the request.

  • Supports OAuth 2.0, OpenID Connect 1.0 and SAML 2.0 when integrated with the ID system

    Federate sign-in through an identity provider; validate token issuer, audience, and expiry.

  • Identity propagation of old systems that do not support modern standards

    Associate users or groups with authorized scope and review how membership changes affect access.

Integration and Monitoring

  • Integration with SIEM.

    Send structured events to monitoring and verify that key fields arrive with the event time and asset context.

  • Integrated with viral scans.

    Identify both integration endpoints and the data they exchange; verify behavior if either endpoint is unavailable.

  • Integration with fraud prevention systems.

    Identify both integration endpoints and the data they exchange; verify behavior if either endpoint is unavailable.

  • Integrated with HSM

    Integrate key operations with hardware protection where supported and review key export restrictions.

  • Integrate records with Splunk, Logpoint, ArcSight and others

    Send structured events to monitoring and verify that key fields arrive with the event time and asset context.

  • Organized records in JSON format

    Record what happened, when, and in which scope; review event fields and retention for investigation and audit.

  • Common Event Format (CEF) support

    Send structured events to monitoring and verify that key fields arrive with the event time and asset context.

  • Lucene query syntax

    Show activity within the covered scope and associate events with an asset or session during review.

  • Access statistics

    Show activity within the covered scope and associate events with an asset or session during review.

  • Places ready for safety, performance and failure detection

    Present reviewable results to compare changes and identify cases requiring action.

  • Custom visualizations

    Show activity within the covered scope and associate events with an asset or session during review.

Availability and Continuity

  • High availability through failover cluster with active-passive and active-active

    Reduce disruption from a component failure; test actual failover and recovery to normal operation.

  • Load balancing

    Distribute traffic across endpoints; verify session behavior and removal of unhealthy targets.

  • health checks

    Detect an unhealthy target so traffic is withheld until it is ready again.

Operations and Cloud Infrastructure

  • Deployment as a virtual appliance or cloud image

    Confirm environment requirements, supported versions, and dependencies before moving the configuration to production.

  • Operating support as a cloud image compatible with AWS, Google Cloud and Azure

    Confirm environment requirements, supported versions, and dependencies before moving the configuration to production.

  • Operating support in Alibaba Cloud

    Confirm environment requirements, supported versions, and dependencies before moving the configuration to production.

  • Configuration management

    Confirm environment requirements, supported versions, and dependencies before moving the configuration to production.

  • Automatic rule suggestions / policy learning

    Confirm environment requirements, supported versions, and dependencies before moving the configuration to production.

  • Staging support

    Test rules against representative traffic before production and define rollback if unintended impact appears.

  • Automation via REST API

    Connect defined actions or data to other systems; review authorization, authentication, and failure handling.

What to validate before rollout

  1. Evaluate incoming request characteristics against the protection rules.
  2. Test rules before enforcing them to limit disruption to legitimate use.
  3. Relate alerts to request paths to decide what needs tuning or an application fix.

Integration and scope

Review the HTTP path, where TLS terminates, and the impact on legitimate requests. Gateway protection does not replace application fixes.

Regulatory alignment

Illustrative ways to support control implementation. An area may have more than one example; each row is not necessarily a separate official control.

NCA · ECC 2:2024For entities within the scope of the Essential Cybersecurity Controls.
Domain or controlHow it supports implementationApplication
Network Security ManagementUse a reverse proxy to inspect traffic, restrict protocols, and mitigate denial-of-service attacks.

Related capability: HTTP(S) reverse proxy, verification of protocols, protection from DoS attacks

Applied
Identity and access managementSupport access control, standard entry registration, and secure sessions management when integrated with the identity system

Related capability: Single Sign-On, Access Control, Safe Sessions Management

Applied
Events records and monitoringProvide organized records, access statistics, tracking panels, and link to monitoring and analysis systems

Related capability: JSON records, tracking panels, SIEM integration, Common Event Format

Applied
Incident and threat managementSupports detection of threats, malicious behaviors and analysis of suspicious activities

Related capability: Threat Intelligence, Detection of Bots, GEO Filters

Applied
Management of deficienciesSupports reducing the exploitation of fractions by applying front protection policies before applying modifications

Related capability: Virtual patching

Applied
CryptographySupport communication encryption, certificate verification and integration with key management units

Related capability: TLS; OCSP; HSM integration; URL encryption

Applied
Protection of data and informationReduce attempts to manipulate or steal data by protecting forms, cookies and sessions

Related capability: form protection; cookie protection; CSRF tokens

Applied
Cyber flexibility and continuity of businessSupports high availability, burden balance, and backup failure mechanisms

Test failure and recovery paths. This capability does not replace a complete continuity or recovery plan.

Related capability: High availability; failover; load balancing; health checks

Applied
Cyber Security for Cloud Computing and HostingSupport publishing as a default device or cloud image within cloud environments

Related capability: virtual appliance, cloud image, support as a cloud image compatible with AWS, Google Cloud and Azure as well as Alibaba Cloud

Applied
SAMA · CSFFor financial institutions within the Saudi Central Bank framework, subject to the control's applicability.
Domain or controlHow it supports implementationApplication
Security GovernanceHelps enforce centralized access policies for sensitive accounts, clarify accountability, and support adherence to security policy

Settings or logs can help prepare evidence. Governance decisions and effectiveness testing remain with the organization.

Related capability: Central Management of Security Policy

Applied
Identity and access managementControls access to sensitive systems according to the principle of the need for knowledge and the need for use.

Related capability: Identity management, access and accurate control of powers

Applied
Management of Privileges and PowersSupports restricting the use of high-prioritarian accounts and monitoring their use

Related capability: Privileged account management

Applied
Access from distance.Supports administrative access regulation and sensitive accounts-related sessions monitoring

Related capability: Access Control and Session Monitoring

Applied
Multi-factor authenticationSupports strengthening the identity verification of sensitive accounts and reduces the risks of unauthorized access

Related capability: Multi-factor authentication

Applied
Management of assetsIt contributes to the protection of access to servers, applications, databases and hardware connected with the technology infrastructure

Related capability: Management of access to devices, servers, applications and database

Applied
Risk ManagementReduce the risk of abuse of privileges, joint accounts and uncontrolled administrative accounts

Settings or logs can help prepare evidence. Governance decisions and effectiveness testing remain with the organization.

Related capability: Control of sensitive accounts and limiting privileges

Applied
Security MonitoringProvides continuous monitoring of the management activities and user behavior within sensitive systems

Related capability: Monitoring user behavior and administrative activities

Applied
Events and records.Supports registration of activities and sessions related to high authority accounts

Related capability: Activity logging and audit records

Applied
compliance and auditProvide inspection records that help to review and verify compliance with security policies and procedures

Settings or logs can help prepare evidence. Governance decisions and effectiveness testing remain with the organization.

Related capability: Audit records and recording sessions

Applied
Protection of dataContribute to the protection of credentials and passwords related to administrative and sensitive accounts

Related capability: Protecting Sensitive Data

Applied
Protecting the systemsProhibits unauthorized access to sensitive systems and restricts the execution of unauthorized orders

Related capability: Prevent unauthorized access and preventing the execution of unauthorized orders

Applied
Protection of InfrastructureSupports access management to sensitive infrastructure components in local, cloud and hybrid environments

Related capability: Unified Management of Systems, Applications and Devices

Applied
Operational SecurityReduce the dependence on manual processes through account management and policy implementation

Related capability: Automated Account Management and Security Processes

Applied
Incident responseProvides records and activities of analytical sessions to support investigations and analysis of events after incidents

Related capability: Registration of Sessions and Audit Records

Applied
Continuity of businessReduce the risk of interruption or disruption of processes resulting from abuse of critical accounts

Test failure and recovery paths. This capability does not replace a complete continuity or recovery plan.

Related capability: Central Management for Access to Sensitive Accounts

Applied
Security of third partiesSupports control and monitoring of access to sensitive systems by external users or related entities

Related capability: Access Control and Session Monitoring

Applied
Security of cloud environmentsSupports access management through cloud, local and hybrid environments

Related capability: Supporting cloud, local and hybrid environments

Applied
Protection of sensitive financial systemsLimit access to highly sensitive systems and applies monitoring and audit to related administrative accounts

Related capability: Management of sensitive accounts and monitoring of sessions

Applied
Protection of Critical EnvironmentsSupports the protection of administrative accounts used in critical systems by limiting authorities and registrating activities

Related capability: Protection of administrative and sensitive accounts

Applied
NCA · OTCC-1:2022For operational technology and industrial control environments to which the controls apply.

Evaluate these examples against the facility level and assets in scope. They do not authorize IT/OT connectivity or component installation on operational assets without assessment.

Domain or controlHow it supports implementationApplication
Visibility and monitoringProvide organized records, tracking panels, access statistics, and link to monitoring and analysis systems

Related capability: logging; dashboards; SIEM integration

Applied
Isolation of networks.It can be used as a front intermediate between users and services.

Use only authorized paths and assets. Network isolation and remote-access approval requirements still apply.

Related capability: reverse proxy

Applied
Communication between IT and OTIt can be used as a port for applications and software interfaces between different regions with the imposition of access controls

Use only authorized paths and assets. Network isolation and remote-access approval requirements still apply.

Related capability: HTTP(S) reverse proxy; access enforcement

Applied
Access controlSupports access control, standard login registration, and verification of characteristics when integrated

Use only authorized paths and assets. Network isolation and remote-access approval requirements still apply.

Related capability: access control; Single Sign-On; JWT; JWKS

Applied
Discover threats.Supports behavioral analysis, detection of bots and exploitation of threat information

Related capability: threat intelligence; anomaly detection; bot detection

Applied
Incident responseSupports the collection and connection of records and events with security analysis and monitoring systems

Verify asset compatibility and test operational impact before deploying an agent or taking response action in an OT environment.

Related capability: structured logs; SIEM; Common Event Format

Applied
Protection of remote accessSupports secure sessions management and access control at application level

Use only authorized paths and assets. Network isolation and remote-access approval requirements still apply.

Related capability: secure session management; access control

Applied
Aramco · SACS-210 (2026)For Aramco third parties, subject to their classification and assessment scope. These examples do not establish CCC certification.
Domain or controlHow it supports implementationApplication
WAF inspection of internet-facing application trafficA WAF can inspect HTTP and HTTPS for external applications when traffic is routed through it and HTTPS inspection is configured. Direct access to the origin can bypass that inspection.Applied

“Applied” describes the capability in the illustrative example, not an implementation or compliance status for the customer.

Decision questions

Questions before you start

How do we know this solution is right for us?

Start with the risk signals on this page. If they match your environment, they can be turned into a short assessment that defines scope, priority, and a practical implementation approach.

How do we start without adding operational complexity?

Start with a focused risk and scope assessment, then define implementation priorities, technical requirements, and phased rollout steps.

Related solutions

Ready for the next step?

Turn this need into a practical assessment and clear implementation plan.

Share your use case and priority systems so we can discuss a pilot and its integration requirements.

Discuss your use case