Nemesida WAF review

Review of the main opportunities, the features and technical specifications of Nemesida WAF.

A feature of Nemesida WAF is the accuracy of detecting attacks with a minimum number of false positives, the presence of a virtual patching system, a high-quality signature database, scalability and pricing policy, allowing you to ensure the safety of online stores, portals, API and other web-applications in enterprises of any size.

General information

Interface language	English
Documentation language	Russian, English
Availability of a research center in Russia	lab.pentestit.ru
Operation mode	IPS, IDS, Combined
Delivery type	In the form of the installation distribution In the form of a cloud service

Clustering, SSL, standards

Termination SSL
Passive decoding SSL
Support of sessions established on client certificates
Support of Active-Active clustering
Support of Active-Passive clustering
Support of balancing of loading between the protected web applications
Support of WebSockets
Support of XML
Support of JSON

Detection of attacks

Class of blocked attacks	Injection (RCE, SQLi, OS command, etc.) XSS XXE Information Leakage Path Traversal Open Redirect Web Shell HTTP Response Splitting RFI/LFI Server-Side Request Forgery Brute-force attacks (including distributed attacks) «Zero-day» attacks
The presence of a reputation base	Own reputation and GeoIP base.
Detection of bots on the basis of values of query fields	Based on their signatures and behavioral analysis.
Protection against the attack on XML Blocking of separate request Temporary blocking of requests from the source by IP-address Check of HTTP transactions on compliance of RFC and to the best practices of control Categorization by type of activity (type of attack) of sources Creating signature rules and their exclusions based on a set of criteria (for example: method, URL, parameter value, title) and regular expressions

Machine learning (Nemesida AI)

Accuracy of identification of the attacks	Nemesida AI ≈ 30% more efficient than signature analysis.
Machine learning method	The classical algorithm of machine learning is used. Key features of Nemesida AI are the accuracy of identification of anomalies, the minimum quantity of false operations and lack of high requirements to hardware resources.
Adaptation of WAF to a mutable application Automatic creation of behavioral models Detection of anomalies and assessment of their severity level Identification of new signs of attacks, including the identification of «zero day» attacks Behavioral models management interface(additional training of models)

Brute-force attacks

Nemesida WAF is able to detect brute-force attacks, including distributed ones used Levenshtein distance and fuzzy logic.

Additional features

Integration with vulnerability scanners, including the Nemesida WAF Scanner
Antivirus analysis
Simply SIEM integration
Firewall Integration
Lack of traffic and virtual hosts limitation for the Standalone-version

Auxiliary modules

Nemesida WAF Cabinet
Nemesida WAF Scanner
Virtual patching
Signtest

Filtering and notifications

Cabinet for dealing with incidents
Flexible filtering of security log entries by specified criteria
Manual and automatic aggregation of security log entries by attack type, parameter name, URL, IP address
Attack verification using the built-in dynamic scanner
Automatic aggregation of events with intense character
Possibility of setting up reporting for obtaining summary information about safety events
Existence of the interface with information on network loading of WAF
The recorded events contain inquiry in full (entirely)
The recorded events contain the description of the worked rule of security policy
Export and import of the security event log in full amount
E-mail and Syslog notifications

Conclusion

Combined analysis Nemesida WAF based on signatures and machine learning allows to provide the security of Internet stores, portals, API and other web-applications from hacker attacks with the minimum of false positives.

Machine learning module Nemesida AI blocks zero day and brute-force attacks without increasing of the response time. The module is well scalable and doesn't have high requirements to hardware resources.

Moreover, software Nemesida WAF includes vulnerability scanner, virtual patching system and a lot of additional components which is promotive of increasing of the web-application security level.

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