65
telstra.com.au
Findings
3
·
4
·
1
Checks
8 passive
Executive Summary
AI-GENERATED
telstra.com.au scored 65/100, meeting baseline requirements but with 4 findings that require attention. The vendor can proceed with a remediation timeline agreement.
Critical gaps in: Security Headers. Positive signals: Known Breaches, HSTS Header, CVE Exposure all passed.
5 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 · 5 items
1
Strengthen email authentication configuration
Email authentication is partially configured for telstra.com.au but has gaps. Actions needed: add SPF record; configure DKIM. Until DMARC enforcement is active, spoofed emails may still reach recipients.
Compliance Impact
NIST CSFPR.AC-7
Email authentication is a required access control
Remediation Steps
1
Add SPF record if missing: v=spf1 include:_spf.google.com -all
2
Configure DKIM and publish public key in DNS
3
Verify with: nslookup -type=txt _dmarc.telstra.com.au
Unlock the full remediation plan
Get detailed steps, compliance mapping, and ownership for all 5 action items. Free — just enter your work email.
No spam. We'll only contact you about this report.
✓ Report unlocked. Scroll down for full details.
2
Add missing security headers (CSP, Referrer-Policy, Permissions-Policy)
3 of 5 recommended security headers are missing on telstra.com.au: CSP, 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: Referrer-Policy: strict-origin-when-cross-origin
3
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
4
Verify with: curl -sI https://telstra.com.au | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
3
Enable DNSSEC on your domain
Without DNSSEC, DNS responses for telstra.com.au 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 .au TLD
4
Verify: dig +dnssec telstra.com.au
4
Review certificate configuration — expires in 14 days
Certificate issues found for telstra.com.au: certificate expires in 14 days. Ensure auto-renewal is configured to prevent expiry. These are operational hygiene items, not immediate security risks.
Remediation Steps
1
Verify auto-renewal is configured (Let's Encrypt: certbot renew --dry-run)
2
Consolidate certificate issuance to 1–2 trusted CAs
5
Upgrade to TLS 1.3
telstra.com.au negotiated TLSv1.2. TLS 1.2 is still compliant under all major security frameworks and is not a vulnerability. TLS 1.3 offers faster handshakes and removes legacy cipher negotiation. This is a best-practice improvement, not a compliance gap.
Remediation Steps
1
Update web server config to prefer TLS 1.3 (nginx: ssl_protocols TLSv1.2 TLSv1.3)
2
Verify: openssl s_client -connect telstra.com.au:443 -tls1_3
Scan Findings
Security Headers
Critical
DMARC / Email Security
Warning
DNS Configuration
Warning
TLS Configuration
Warning
Certificate Hygiene
Warning
Known Breaches
Healthy
HSTS Header
Healthy
CVE Exposure
Healthy