Firewall Security Management

Firewall Security Management

20 TOP MOST PROBLEMS IN FIREWALLS WHICH IMPACT BUSINESS More »

Firewall Security Management

Firewall Security Management

Firewall Hardening Checklist More »

Firewall Security Monitoring

Firewall Security Monitoring

Giving You a Proactive Approach to Your Cyber security with Security Monitoring More »

Best TOP Enterprise Network Firewalls

Best TOP Enterprise Network Firewalls

List of Top Firewall Providers Company / Companies in India More »

 

Tag Archives: firewall security assessment

Firewall Consultant

Firewall Consultants in India

Firewall Support Provider in India

Firewall Support Provider in India

 

An up-to-date firewall can help you protect your organization’s network while allowing legitimate business communication to be sent and received. It keeps bad actors out and can be used to keep employees away from insecure or non-work-related sites.

While a firewall provides excellent security and protection, it needs monitoring and management. Monitoring your own firewall is a time-consuming, intensive, and expensive task that requires security expertise and regular upgrades. Many organizations lack the internal expertise, time, and capital to monitor their own firewalls around-the-clock. For these companies, a managed firewall is an affordable, effective solution.

How a Managed Firewall Works

Managed Firewall Service in India

Managed Firewall Service in India

A managed firewall is a service that offers enhanced threat management. Security experts monitor your firewall remotely and can help mitigate any potential threats. To accomplish this, they study your network traffic and learn what normal traffic looks like for your business. When any unusual activity is detected, it can be quickly identified and addressed.

In addition, your provider will perform routine traffic analysis and send regular reports to you so you will have a clear sense of your network traffic patterns and how your managed services team is managing threats to your network.

Expertise Made Affordable by The Economy of Scale

The beauty of IT services like managed firewall is their ability to leverage economies of scale to offer companies the cybersecurity they need, at a price they can afford. In the past, your only option was to create an in-house security solution for your network, which you had to pay for through a capital expenditure.

Here are 3 ways a managed firewall can enhance your company’s operations:

1. Protect against Cyber Crime

Protect against Cyber Crime

Protect against Cyber Crime

Cyber crime is a growing concern for businesses and citizens alike. According to a recent cyber crime report published by research firm Cybersecurity Ventures, cyber attack rates are climbing faster than any other crime and will cost the global economy $6 trillion annually by 2021.

A business that falls prey to a cyber criminal will face serious losses and a tough road ahead. According to a 2017 report published by the Better Business Bureau, half of all businesses would lose their profitability within a month if their critical data was lost.

With a managed firewall, business owners can avoid or mitigate the risk of a cyber attack or breach.

2. Meet compliance requirements

Meet compliance requirements

Meet compliance requirements

As the threat level of cyber attacks continues to grow, so does the burden of compliance regulations. Existing regulations such as HIPAA, PCI DSS, and Sarbanes Oxley continue to evolve with ever stricter and more technical compliance requirements. New regulations such as GDPR add to the complexity.

A managed firewall service provider with compliance expertise can ensure your company meets these legal requirements, avoiding the heavy penalties associated with negligence.

3. Ease burden of monitoring

Ease burden of monitoring

Ease burden of monitoring

The burden of round-the-clock monitoring can be heavy for many SMBs. For example, if you have a small IT department with just one security expert, it’s not possible for your staff to continuously monitor your network.

Most business owners need to stay focused on their core business activities; they don’t have time to become IT security experts. And hiring enough staff for 24/7 monitoring may be too expensive. A managed firewall solution solves both of these problems.

We Can Help

With the support of Managed Edge Security from Firewall Firm, you can shift the burden of network security, compliance, and monitoring to our team of security experts. With Firewall Firm’s Managed Edge Security solution, customers benefit from next-generation firewall services and unified threat mitigation to protect their network, Our experts work diligently to stay on top of emerging threats, current best practices, and compliance requirements.

Our security experts will continuously watch your network for anomalies, strange patterns, or any other indicators of potential threats. We can also take on routine tasks, including security updates and patches, to free your internal resources to help you accomplish more important tasks and projects.

We can provide high levels of security for your network and bill you on a monthly basis, as an OpEx. Through a carefully crafted Service Level Agreement (SLA), we will spell out our responsibilities and what you can expect from us in the event of a cyber attack on your network.

Firewalls can protect your network against unauthorized access and intruders.

As enterprises expand its mission-critical networks with newer applications, many have begun to view network security technologies as the key to prevent intrusion and exposure of critical data. Without protection, companies can experience security breaches resulting in serious damages. The security system that all enterprises should seek to implement in such a situation is a firewall. Firewalls are certainly becoming a critical part of any secure network.

20 TOP MOST PROBLEMS IN FIREWALLS WHICH IMPACT BUSINESS

  1.  Failing to save the CONFIGURATION: 90% of the times we don’t save the configuration which gives the problem when we reboot the Firewall or Router.
  2. Configuration done by the Engg is not meeting the company policy
  3. Rules are not used still there in the ACL
  4. Duplicate Rules no documentation of the rules.
  5. Firewall connection exceeds as not taken in account eh VPN or SSL connections while making a DECISIONS or the Firewall is OLD
  6. Memory full issue there is bug in the rules or the configuration making firewall slow or reboots automatically.
  7. Firewall OS is older and new OS is not supported.
  8. Unwanted application are taking lot of bandwidth like video youtube etc. then bring down the productivity of the organisation.
  9. Link problem. The like is not stable and goes down or flaps too much.
  10.  NO QOS done for the rules and on the application.
  11. OSPF or BGP not configured properly.
  12. Poor VOIP quality which may be due to link flap or too much bandwidth taken by other applications
  13. Duplexing not done properly.
  14. Passwords are simple or easy to decode authentication is not upto the mark
  15. MS-SQL is open from the outside for the applications via server with just application authentication.
  16. Anti-spoofing not configured on the interfaces
  17. No logging is done for the system changes.
  18.  Any TCP or UDP packet can go out.
  19. Proxy services are not stopped
  20. Certification not configured on the firewall to have the ultimate Security.

The Last one is important and no one configures firewall for that (certification)

Every one is thinking that firewall is now matured and nothing is need more.

But after ransomware things have changed.

Affordable Managed Firewall Service with 24×7 Firewall Monitoring

24x7 Firewall Monitoring Services in India

24×7 Firewall Monitoring Services in India

Take advantage of our group of dedicated Firewall professionals to manage, monitor and respond to network attacks.
System Management – Allows you to focus on other tasks.
Proactive Security Monitoring – We watch and respond to Internet attacks so you don’t have to.
Network Monitoring – We monitor the firewall to ensure your network stays connected to the Internet.
Change Management Reporting – You will always know what is going on and what we did to fix it.
Customized to Your Needs – You control the level of service that is right for you.

» Best practice configuration
» Unlimited phone support
» Constant access to Web-based monitoring & reporting
» No charge equipment repair or replacement
» Remote firmware updates
» Quick configuration changes
» Outage notice by e-mail
» After hours emergency response from our certified team
» No contract or extended customer commitment!
» This service is provided on a month-to-month basis.

Managed Firewall Support Services in India

Managed Firewall Support Services in India

Managed Firewall Support Services in India

Basic Reactive Managed Firewall Support Services
Just $100 Per Month,

Enterprise Proactive Managed Firewall Support Services
Just $600 Per Month,

Managed Firewall Support Services, Firewall Support Service, Firewall support Services Provider in India

Managed Firewall Support Services, Firewall Support Service, Firewall support Services Provider in India

Managed Firewall Support Services, Firewall Support Service, Firewall support Services Provider in India

Managed Firewall Consultant Support Services

Firewall Consultant Support Service, Firewall support number : +91 9582907788

Sales :+91 958 290 7788 | Support : 0120 2631048

Register & Request Quote | Submit Support Ticket

Firewall Checklist

Firewall Hardening Checklist

Firewall Hardening Checklist

Firewall Hardening Checklist

This checklist should be used to audit a firewall. This checklist does not provide vendor specific security considerations but rather attempts to provide a generic listing of security considerations to be used when auditing a firewall.Only technical aspects of security are addressed in this checklist. Manual elements like physical protection for the firewall server is not considered.

Prior to using this checklist the following elements should be considered:

  • Operating system: This checklist only defines the security items relating the firewall software and not to any security elements of the operating system.
  • Port restrictions: A listing of ports to be restricted are highlighted in this checklist.However, prior to recommending that the ports be restricted, the auditor should ensure that the service associated with that port is not used by the business e.g.remote access via telnet. Where such situations exist this checklist attempts to provide alternate security options if the service is needed e.g. use SSH instead of Telnet.
  • Modems within the internal network: Modems within the internal network are the biggest threat to subvert a firewall and thus the auditor should ensure that there of 6are no modems within the internal network. It is senseless performing an audition the firewall when an even bigger threat exists via the modem. The auditor should perform war dialing to identify any modems within the internal network with tools like phone sweeper.
  • Application level firewalls: The inherent nature of application level firewalls require that the operating system be as secure as possible due to the close binding of these two components. Thus, the auditor should ensure that the security on the operating system is secure before evaluating the security offered by the application level firewall.
  • De fence in depth: It must be recognized that the firewall implementation is a notan end to itself to provide security. Thus, it is vital that the auditor evaluate the security of the other components like IDS, operating systems, web applications,IIS/Apache, routers and databases. Some organizations have opted for firewall network appliances, which are firewalls loaded onto operating systems which have their security already pre configured. In such instances, the auditor need only review the security of the firewall configuration instead of the operating system as well.
  • Rulesets: This checklist provides a listing of best practice rule sets to be applied.However, the organizational requirements may not need all of the rule sets. Fore.g. where an organization has a need to allow access via the internet to critical servers, the rule sets wound not include a deny rule to that internal IP address forthe critical server. Instead it may provide for allow access to HTTP 80 to the critical IP and deny all other traffic to the critical IP. It must be noted that some elements of the recommended rule sets have to be applied irrespective of business requirements e.g. blocking private addresses (RFC1918), illegal addresses, standard unroutables, reserved addresses, etc.
  • Laptop users: Most organizations use mobile laptops for telecommuting and on the road sales, etc. This provides a further vulnerability even if the organization operates a VPN. The hacker could easily gain access to the laptop when it is connected to the internet and download tools to the laptop that can become a problem when the laptop is again connected to the corporate network. In a VPN situation, the hacker with access to the remote station once the tunnel is connected, can access the corporate network. In such a circumstance, it is important for the auditor to determine if laptop usage occurs and to evaluate whether personal firewalls are installed on these laptops prior to usage. This checklist provides a generic set of considerations for personal firewalls, but it does not provide any product specific security recommendations.

Checklist

Checklist

Checklist

No. Security Elements
1. Review the rulesets to ensure that they follow the order as follows:
•   anti-spoofing filters (blocked private addresses, internal addresses
appearing from the outside)
•   User permit rules (e.g. allow HTTP to public webserver)
•   Management permit rules (e.g. SNMP traps to network
management server)
•   Noise drops (e.g. discard OSPF and HSRP chatter)
•   Deny and Alert (alert systems administrator about traffic that is
suspicious)
•   Deny and log (log remaining traffic for analysis)
Firewalls operate on a first match basis, thus the above structure is important
to ensure that suspicious traffic is kept out instead of inadvertently allowing
them in by not following the proper order.

 

2. Application based firewall
Ensure that the administrators monitor any attempts to violate the security policy using the audit logs generated by the application level firewall. Alternatively some application level firewalls provide the functionality to log to intrusion detection systems. In such a circumstance ensure that the correct host, which is hosting the IDS, is defined in the application level firewall. Ensure that there is a process to update the application level firewall’s vulnerabilities checked to the most current vulnerabilities.Ensure that there is a process to update the software with the latest attack signatures.In the event of the signatures being downloaded from the vendors’ site, ensure that it is a trusted site.

In the event of the signature being e-mailed to the systems administrator, ensure that digital signatures are used to verify the vendor and that the information transmitted has not been modified en-route.

The following commands should be blocked for SMTP at the application level firewall:

  • EXPN (expand)
  • VRFY (verify)
  • DEBUG
  • WIZARD

The following command should be blocked for FTP:

  • PUT

Review the denied URL’s and ensure that they are appropriate for e.g. any URL’s to hacker sites should be blocked. In some instances organisations may want to block access to x-rated sites or other harmful sites. As such they would subscribe to sites, which maintain listings of such harmful sites. Ensure that the URL’s to deny are updated as released by the sites that warn of harmful sites.

Ensure that only authorised users are authenticated by the application level firewall.

3. Stateful inspection

Review the state tables to ensure that appropriate rules are set up in terms of source and destination IP’s, source and destination ports and timeouts. Ensure that the timeouts are appropriate so as not to give the hacker too much time to launch a successful attack.

For URL’s

  • If a URL filtering server is used, ensure that it is appropriately defined in the firewall software. If the filtering server is external to the organisation ensure that it is a trusted source.
  • If the URL is from a file, ensure that there is adequate protection for this file to ensure no unauthorised modifications.

Ensure that specific traffic containing scripts; ActiveX and java are striped prior to being allowed into the internal network.

If filtering on MAC addresses is allowed, review the filters to ensure that it is restricted to the appropriate MAC’s as defined in the security policy.

  1. Logging
    Ensure that logging is enabled and that the logs are reviewed to identify any potential patterns that could indicate an attack.
  2. Patches and updates
    Ensure that the latest patches and updates relating to your firewall product is tested and installed.
    If patches and updates are automatically downloaded from the vendors’ websites, ensure that the update is received from a trusted site.
In the event that patches and updates are e-mailed to the systems
administrator ensure that digital signatures are used to verify the vendor and
ensure that the information has not been modified en-route.
6. Location – DMZ
Ensure that there are two firewalls – one to connect the web server to the
internet and the other to connect the web server to the internal network.
In the event of two firewalls ensure that it is of different types and that dual
NIC’s are used. This would increase security since a hacker would need to
have knowledge of the strengths, weaknesses and bugs of both firewalls.
The rulesets for both firewalls would vary based on their location e.g. between
web server and the internet and between web server and the internal network.
7. Vulnerability assessments/ Testing
Ascertain if there is a procedure to test for open ports using nmap and whether
unnecessary ports are closed.
Ensure that there is a procedure to test the rulesets when established or
changed so as not to create a denial of service on the organisation or allow
any weaknesses to continue undetected.
8. Compliance with security policy
Ensure that the ruleset complies with the organisation security policy.
9. Ensure that the following spoofed, private (RFC 1918) and illegal addresses
are blocked:
Standard unroutables
• 255.255.255.255
• 127.0.0.0
Private (RFC 1918) addresses
• 10.0.0.0 – 10.255.255.255
• 172.16.0.0 – 172.31.255.255
• 192.168.0.0 – 192.168.255.255
Reserved addresses
• 240.0.0.0
Illegal addresses
• 0.0.0.0
UDP echo
ICMP broadcast (RFC 2644)
Ensure that traffic from the above addresses is not transmitted by the
interface.
10. Ensure that loose source routing and strict source routing (lsrsr & ssrr) are
blocked and logged by the firewall.
11. Port restrictions
The following ports should blocked:
Service Port Type Port Number
DNS Zone Transfers TCP 53
TFTP Daemon UDP 69
Link TCP 87
SUN RPC TCP & UDP 111
BSD UNIX TCP 512 – 514
LPD TCP 515
UUCPD TCP 540
Open Windows TCP & UDP 2000
NFS TCP & UDP 2049
X Windows TCP & UDP 6000 – 6255
Small services TCP & UDP 20 and below

 

Small services TCP & UDP 20 and below
FTP TCP 21
SSH TCP 22
Telnet TCP 23
SMTP (except external TCP 25
mail relays)
NTP TCP & UDP 37
Finger TCP 79
HTTP (except to external TCP 80
web servers)
POP TCP 109 &110
NNTP TCP 119
NTP TCP 123
NetBIOS in Windows NT TCP &UDP 135
NetBIOS in Windows NT UDP 137 & 138
NetBIOS TCP 139
IMAP TCP 143
SNMP TCP 161 &162
SNMP UDP 161 &162
BGP TCP 179
LDAP TCP &UDP 389
SSL (except to external TCP 443
web servers)
NetBIOS in Win2k TCP &UDP 445
Syslog UDP 514
SOCKS TCP 1080
Cisco AUX port TCP 2001
Cisco AUX port (stream) TCP 4001
Lockd (Linux DoS TCP &UDP 4045
Vulnerability)
Cisco AUX port (binary) TCP 6001
Common high order TCP 8000, 8080, 8888
HTTP ports
  1. Remote access
    If remote access is to be used, ensure that the SSH protocol (port 22) is used instead of Telnet.
  2. File Transfers
    If FTP is a requirement, ensure that the server, which supports FTP, is placed in a different subnet than the internal protected network.
  3. Mail Traffic
    Ascertain which protocol is used for mail and ensure that there is a rule to block incoming mail traffic except to internal mail.
  4. ICMP (ICMP 8, 11, 3)
    Ensure that there is a rule blocking ICMP echo requests and replies.
    Ensure that there is a rule blocking outgoing time exceeded and unreachable messages.
  5. IP Readdressing/IP Masquerading
    Ensure that the firewall rules have the readdressing option enabled such that internal IP addresses are not displayed to the external untrusted networks.
  6. Zone Transfers
    If the firewall is stateful, ensure packet filtering for UDP/TCP 53. IP packets for UDP 53 from the Internet are limited to authorised replies from the internal network. If the packet were not replying to a request from the internal DNS server, the firewall would deny it. The firewall is also denying IP packets for TCP 53 on the internal DNS server, besides those from authorised external secondary DNS servers, to prevent unauthorised zone transfers.
  7. Egress Filtering
    Ensure that there is a rule specifying that only traffic originating from IP’s within the internal network be allowed. Traffic with IP’s other than from the Internal network are to be dropped.
    Ensure that any traffic originating from IP’s other than from the internal network are logged.
  8. Critical servers
    Ensure that there is a deny rule for traffic destined to critical internal addresses from external sources. This rule is based on the organisational requirements, since some organisations may allow traffic via a web application to be routed via a DMZ.
  9. Personal firewalls
    Ensure that laptop users are given appropriate training regarding the threats, types of elements blocked by the firewall and guidelines for operation of the personal firewall. This element is essential, since often times personal firewalls rely on user prompt to respond to attacks e.g. whether to accept/deny a request from a specific address.
    Review the security settings of the personal firewall to ensure that it restricts access to specific ports, protects against known attacks, and that there is adequate logging and user alerts in the event of an intrusion.
    Ensure that there is a procedure to update the software for any new attacks that become known.
    Alternatively most tools provide the option of transferring automatic updates via the internet. In such instances ensure that updates are received from trusted sites.
  10. Distributed firewalls Ensure that the security policy is consistently distributed to all hosts especially when there are changes to the policy. Ensure that there are adequate controls to ensure the integrity of the policy during transfer, e.g. IPSec to encrypt the policy when in transfer. Ensure that there are adequate controls to authenticate the appropriate host. Again IPSec can be used for authentication with cryptographic certificates.
  11. Stealth Firewalls Ensure that default users and passwords are reset. Ensure that the firewall is appropriately configured to know which hosts are on which interface. Review the firewall access control lists to ensure that the appropriate traffic is routed to the appropriate segments. A stealth firewall does not have a presence on the network it is protecting and it makes it more difficult for the hacker to determine which firewall product is being used and their versions and to ascertain the topology of the network.
  12. Ensure that ACK bit monitoring is established to ensure that a remote system cannot initiate a TCP connection, but can only respond to packets sent to it.
  13. Continued availability of Firewalls: Ensure that there is a hot standby for the primary firewall.

 

Firewall Company | Firewall Company India | Firewall Provider India | Firewall Company