Firewalls and VLANs only work if they are configured correctly. We test external exposure and internal paths after a compromised laptop — so leadership knows if segmentation and patching actually hold.
See if one breach can reach payroll, source code, or backups.
Confirm whether known issues are exploitable in your environment.
Document independent network testing for insurers and ISO 27001.
Focus on fixes that change attack paths, not endless CVE lists.
CERT-In empanelled · India
Sumrite’s testers run your network VAPT by hand, and the report is issued through a CERT-In empanelled auditor. One team from scoping to sign-off, built for Indian regulators, enterprise buyers and government work.
Yes. We run the full engagement for you and route the formal attestation through our network of CERT-In empanelled partner auditors, so you deal with one team from scoping to report.
Network VAPT is a security test of the infrastructure your systems run on: the internet-facing perimeter, and the internal network an attacker would land in after compromising a laptop or a VPN account. Externally, a tester finds every exposed service, then checks which ones can be exploited. Internally, the question is how far one foothold can go: whether segmentation actually separates sensitive systems, whether old protocols leak credentials, and whether a standard user can reach domain admin, backups or source code. Unlike a vulnerability scan, which lists every possible CVE, a network penetration test confirms what is reachable and exploitable in your environment and shows the path. The work follows NIST SP 800-115 and PTES within agreed rules, and the report gives an attack-path narrative for leadership plus prioritised fixes for the IT team to work through in order.
| External network test | Internal network test | |
|---|---|---|
| Starting point | The internet, with no access | A foothold inside the network, such as a laptop or VPN account |
| Question it answers | What can anyone online reach and break into? | How far can an attacker move after one machine or account is compromised? |
| Typical findings | Exposed management ports, outdated services, weak VPN or mail gateways | Active Directory attack paths, weak segmentation, reused local admin passwords |
| How it is run | Remotely, against your public IP ranges and domains | Remotely through a small test device or VPN, or on site |
| Who needs it | Every organisation with internet-facing systems | Organisations with an office network, Active Directory or regulated data |
Read next: Internal vs external penetration testing explained
| Area | What we check | Example finding |
|---|---|---|
| External perimeter | Exposed services, VPN and remote access, mail and DNS | An unpatched VPN appliance reachable from the internet |
| Internal reachability | What a single compromised host can reach | A user VLAN that can talk directly to database servers |
| Credentials and identity | Weak or reused passwords, legacy authentication protocols | Captured hashes cracked to a service-account password |
| Privilege escalation | Paths from standard user to domain or server admin | A misconfigured group that grants local admin everywhere |
| Segmentation | Whether firewall rules enforce the intended zones | Cardholder-data systems reachable from the office network |
External testing looks at what anyone on the internet can reach. Internal testing assumes an attacker already has a foothold, such as a phished laptop, and measures how far they can move. Most organisations need both.
Yes. Internal tests are usually run through a small agreed access point, such as a VPN account or a test virtual machine placed on the network, so no one needs to be on site.
Testing is scoped to avoid disruption: no denial-of-service, agreed test windows, and a named contact on your side who can pause work at any time.
We run the full engagement for these frameworks, and where a formal audit or attestation is needed we route it through our local partner firms, so you deal with one team.
Exposed remote access and flat networks turn phishing into company-wide incidents. Scanners list issues; they rarely show how far an intruder could go.
Sumrite's Network VAPT uses controlled exploitation to show reachable assets with evidence your team can act on.
Methodology, scope, and deliverables in plain terms.
NIST SP 800-115 and PTES: discovery, validation, exploitation, and post-exploitation within agreed rules.
Severity-rated findings with proof of exploitability. Report after agreed re-test.
Every step from scope and NDA to a retested, final report, shown for Network VAPT. No jargon, no surprises.
Submit your scope so our team can plan the engagement and get started.
Every phase is run by a security expert, with tools used only to speed up the routine parts. Findings are reproduced and confirmed before they reach your report.
Findings are written for two readers at once: developers who need the exact fix and auditors or buyers who need confidence.
Your team fixes the issues with guidance written for your stack, and the tester who found each issue answers questions directly.
Every fix is tested again. Nothing is marked closed on trust.
You receive a verified report in your company name, ready for clients, auditors and procurement.
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