Altius IT delivers independent web application security audits for federal-facing portals, FedRAMP-authorized SaaS, defense contractor extranets, and CUI-handling applications across Washington DC and the National Capital Region. Our auditors perform OWASP Top 10 assessments, manual penetration testing, and API security reviews to protect mission-critical applications from APT-grade threats.
Washington DC's web application landscape includes federal citizen-facing portals, FedRAMP-authorized SaaS serving multiple agencies, defense contractor extranets exchanging CUI with primes and the government, and policy-institution research applications. Each operating under federal authentication, encryption, and audit logging expectations. Our web application security audit is designed to address the specific risks facing DC organizations that handle CUI, federal authentication tokens, ITAR-controlled technical data, and protected health information from NIH-adjacent research.
We systematically test your web applications against the OWASP Top 10, including injection flaws, broken authentication, sensitive data exposure, XML external entities, broken access control, security misconfigurations, cross-site scripting, insecure deserialization, vulnerable components, and insufficient logging. For federal-facing portals and FedRAMP-authorized applications, broken access control and authentication failures pose the greatest risk of CUI exposure and ATO findings.
Our auditors perform in-depth testing for SQL injection, cross-site scripting, and cross-site request forgery vulnerabilities using both automated scanning and manual exploitation techniques. Defense contractor extranets that integrate with prime contractor systems, and federal portals that aggregate data from multiple agencies, are particularly susceptible to these attacks due to complex trust delegations and data flows.
We audit REST, GraphQL, and SOAP APIs for authentication bypass, excessive data exposure, broken object-level authorization, mass assignment, and rate limiting gaps. DC SaaS providers and contractor APIs rely on token-based authentication (PIV/CAC, OAuth, SAML) where misconfiguration can lead to CUI exfiltration, cross-tenant disclosure in FedRAMP environments, or unauthorized agency access.
Our audit evaluates session token generation, storage, transmission, and expiration. We test for session fixation, session hijacking, and authentication bypass vulnerabilities. For federal portals enforcing PIV/CAC authentication and contractor applications using derived credentials, session compromise can lead to impersonation of cleared personnel or federal employees with broad access privileges.
We test for SSRF vulnerabilities that could allow attackers to access internal CUI databases, agency-side integrations, or cloud metadata services in GovCloud and Azure Government tenants. Federal portals that fetch external resources and contractor applications that integrate with prime systems are particularly susceptible to SSRF attacks that pivot across federal trust boundaries.
Our approach combines automated vulnerability scanning with expert manual penetration testing to identify both common vulnerabilities and complex business logic flaws. This hybrid approach is critical for testing federal workflow approvals, contractor proposal submission portals, and CUI access controls that automated tools cannot adequately evaluate.
We test for business logic flaws including privilege escalation, workflow bypass, and data leakage through application-specific functionality. Federal portals face risks around document classification handling, role-based clearance enforcement, and inadvertent CUI disclosure. Contractor extranets must prevent unauthorized modification of proposal data, contract deliverables, and ITAR-marked technical files.
Our auditors evaluate web server configurations, framework settings, error handling, directory listings, default credentials, and HTTP security headers. We verify that FedRAMP applications implement the SC-family controls, that contractor portals enforce CUI marking and access requirements, and that federal-facing applications prevent information disclosure through verbose error messages.
We assess TLS/SSL configurations, cipher suite selections (FIPS 140-2/3 validation status), certificate management, and data encryption practices. For organizations handling CUI, ITAR-controlled data, or protected health information from federal research programs, encryption must meet NIST SP 800-53 SC-family controls, NIST SP 800-171 3.13 system and communications protection requirements, and HIPAA Security Rule technical safeguards.
For SaaS providers pursuing or maintaining FedRAMP authorization and contractors operating applications that handle CUI under CMMC scope, we evaluate application-layer evidence required for SSP narratives, 3PAO assessments, and CMMC C3PAO reviews. Including secure coding practices, input validation, audit logging, and access control mechanisms. Learn more about our comprehensive cybersecurity audit methodology.
Washington DC organizations operating federal portals, FedRAMP-authorized SaaS, and CUI-handling applications need auditors who understand the intersection of federal authentication, ATO documentation, and CMMC scoping. Altius IT has served organizations for over 30 years with independent, conflict-free security audits.
No vendor ties. Recommendations aligned solely with your risk tolerance and business goals.
Led by experts with a Ph.D. in Computer Science, CISA certification, and industry leadership experience.
Thorough 360-degree review covering your technology, people, and processes.
Every engagement includes follow-up support to ensure vulnerabilities are properly mitigated.
Washington DC is home to the federal government, the largest defense contractors, federal systems integrators, and the policy institutions that shape national policy. The web applications powering this ecosystem handle CUI, ITAR-controlled technical data, classified-adjacent program information, citizen data, and federally funded research records. These applications face sophisticated threats from APT groups conducting espionage, supply chain attackers exploiting vendor trust relationships, and credential-harvesting campaigns targeting federal employees and cleared contractor staff. Our web application security audit helps DC organizations identify and remediate vulnerabilities before they lead to ATO findings or DFARS-reportable incidents.
Federal-facing portals must enforce PIV/CAC authentication, FIPS-validated cryptography, and audit logging that satisfies NIST SP 800-53 AU-family controls. FedRAMP-authorized SaaS applications must demonstrate tenant separation, customer-controlled encryption, and ConMon evidence for ongoing authorization. Defense contractor extranets handling CUI must implement the 110 NIST SP 800-171 controls and prepare for CMMC assessment. Policy institution and university research applications operating under federal grants must satisfy data use agreements and Privacy Act requirements. Our cybersecurity audit addresses each of these sector-specific risk profiles.
An independent web application security audit from Altius IT provides DC organizations with a detailed vulnerability assessment, prioritized remediation roadmap, and documented evidence of security testing that supports FedRAMP authorization packages, CMMC SSP/POA&M evidence, FISMA reporting, and HIPAA documentation. Our Auditor Opinion Letter gives agency authorizing officials, prime contractors, and customers documented assurance that your web applications have been independently tested by CISA-certified professionals. For organizations also needing mobile application security assessments, we offer combined web and mobile testing engagements. Learn more about our team and methodology.
In addition to the District of Columbia, Altius IT serves organizations throughout the National Capital Region including Arlington, Alexandria, Tysons Corner, Reston, Crystal City, Rosslyn, McLean, Herndon, Chantilly, Bethesda, Rockville, Silver Spring, College Park, Gaithersburg, Frederick, and Annapolis. Our web application security audits are conducted both remotely and on-site, providing flexible engagement options for federal agencies, contractors, and policy organizations across the region.