78
zoom.us
Findings
4
·
3
·
1
Checks
8 passive
Executive Summary
AI-GENERATED
zoom.us scored 78/100, meeting baseline requirements but with 3 findings that require attention. The vendor can proceed with a remediation timeline agreement.
Critical gaps in: Security Headers. Positive signals: TLS Configuration, DMARC / Email Security, Known Breaches all passed.
4 action items identified, including 0 critical. The issues are configuration gaps, not architectural problems. A focused remediation effort of 2–5 days could address all findings.
Action Items
Ordered by priority · 4 items
1
Add missing security headers (CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy)
5 of 5 recommended security headers are missing on zoom.us: CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy. These headers protect against clickjacking, MIME-sniffing, and unauthorized browser feature access. Adding them is a server configuration change with no application code changes required.
Compliance Impact
PCI-DSS 4.0Req 6.4.1
Security headers are required application controls
OWASPSecure Headers
Recommended baseline for web applications
Remediation Steps
1
Add Content-Security-Policy header (start with report-only to avoid breakage)
2
Add: X-Content-Type-Options: nosniff
3
Add: X-Frame-Options: DENY (or SAMEORIGIN if you use iframes)
4
Add: Referrer-Policy: strict-origin-when-cross-origin
5
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
6
Verify with: curl -sI https://zoom.us | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
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2
Enable DNSSEC on your domain
Without DNSSEC, DNS responses for zoom.us can be spoofed, potentially redirecting users to malicious sites. This requires coordination with your domain registrar to publish DS records.
Compliance Impact
NIST 800-53SC-20
Secure name/address resolution service
Remediation Steps
1
Check if your DNS provider supports DNSSEC (Cloudflare, Route53, etc.)
2
Enable DNSSEC signing in your DNS provider dashboard
3
Add the DS record to your registrar for .us TLD
4
Verify: dig +dnssec zoom.us
3
Increase HSTS max-age duration
HSTS is enabled but the max-age (0s) is below the recommended minimum of 15768000s (6 months). A short max-age means browsers forget the HTTPS-only policy quickly, reducing protection between visits.
Compliance Impact
PCI-DSS 4.0Req 6.4.1
Application security header configuration
Remediation Steps
1
Update header: Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
2
Verify: curl -sI https://zoom.us | grep -i strict
4
Review certificate configuration
Certificate issues found for zoom.us: wildcard certificate in use. Wildcard certificates have a broader blast radius if compromised. These are operational hygiene items, not immediate security risks.
Remediation Steps
1
Consider replacing wildcard cert with individual certs for critical subdomains
2
Consolidate certificate issuance to 1–2 trusted CAs
Scan Findings
Security Headers
Critical
DNS Configuration
Warning
HSTS Header
Warning
Certificate Hygiene
Warning
TLS Configuration
Healthy
DMARC / Email Security
Healthy
Known Breaches
Healthy
CVE Exposure
Healthy