CyberTrust

Public security report

cnooc.com.cn security rating

F

38/100

A means lowest risk and F means highest, like a school report card. How the score is calculated →

Scanned 2026-10-30 · 18 issue(s) found · 11 checks passed

Re-scan cnooc.com.cn now

What this scan found

CyberTrust assessed cnooc.com.cn passively — using only information that is publicly visible on the internet: DNS records, certificates, response headers and reachable services. The result is 38/100, grade F, where A means lowest risk and F means highest, like a school report card.

Email spoofing is possible: no DMARC record was found for cnooc.com.cn, so anyone can send mail that appears to come from @cnooc.com.cn.

Strongest area: reputation and credential exposure (100/100). Weakest area: HTTP security headers (0/100).

18 issue(s) need attention (1 critical, 2 high, 5 medium, 10 low), while 11 checks passed.

Infrastructure observed: the web server identifies as nginx.

56 subdomain(s) of cnooc.com.cn resolve publicly.

Score by category

Issues found (18)

criticalDatabase exposed to the internet: Elasticsearch on 138.113.199.31:9200

Automated bots continuously scan for Elasticsearch on 138.113.199.31:9200 (hosts: bid.cnooc.com.cn, bid.cnooc.com.cn, hxfile.cloud.cnooc.com.cn) and try weak passwords or known exploits; the usual outcome is a full data exfiltration or ransomware wiping.

4 asset(s) affected · worth +19 points · how to manage your external attack surface →

highAdmin/middleware console exposed: WebLogic on 138.113.199.31:7001

WebLogic on 138.113.199.31:7001 (hosts: bid.cnooc.com.cn, bid.cnooc.com.cn, hxfile.cloud.cnooc.com.cn) faces constant credential stuffing and exploit attempts; weak or default passwords often hand over full access in one try.

5 asset(s) affected · worth +12 points · how to manage your external attack surface →

mediumNetwork service exposed: Printer (JetDirect) on 138.113.199.31:9100

Printer (JetDirect) on 138.113.199.31:9100 leaks configuration, topology or credentials (SNMP community strings are often 'public') and can be abused for internal pivoting.

3 asset(s) affected · worth +5 points · how to manage your external attack surface →

mediumHSTS not enabled

Without it, an attacker can strip SSL on the first HTTP request and keep the user on plaintext (SSL stripping), a common attack on public Wi-Fi.

5 asset(s) affected · worth +4 points · how to set HSTS, CSP and other security headers →

mediumDES/3DES cipher accepted

64-bit block ciphers are vulnerable to SWEET32 after enough data on one connection, and 3DES is no longer accepted by compliance standards.

1 asset(s) affected · worth +2 points · how to read an SSL/TLS certificate check →

mediumOutdated TLS versions enabled (TLSv1.0, TLSv1.1)

Versions TLSv1.0, TLSv1.1 are formally deprecated, fail PCI DSS requirements and are no longer supported by modern browsers; they also enable downgrade attacks and fail compliance audits.

1 asset(s) affected · worth +2 points · how to read an SSL/TLS certificate check →

mediumHTTP is not redirected to HTTPS

Visitors who type the bare domain land on an unencrypted connection and submit data in plaintext, with nothing on screen to warn them.

1 asset(s) affected · worth +2 points · how to set HSTS, CSP and other security headers →

lowNo OCSP stapling

The server does not staple the certificate revocation status. Every revocation check becomes an extra round trip to the CA, which slows the first visit and, if the CA endpoint is unreachable or the visitor's network blocks it, leaves the browser without a usable revocation status.

8 asset(s) affected · worth +1 points · check a certificate with the free SSL tool →

lowContent Security Policy is weak (script-src 'unsafe-inline'; script-src 'unsafe-eval')

The policy is too permissive (script-src 'unsafe-inline'; script-src 'unsafe-eval'), so injected scripts still run while giving a false sense of security.

3 asset(s) affected · worth +1 points · how to set HSTS, CSP and other security headers →

lowNo clickjacking protection

Without it, attackers overlay a transparent frame of your page and trick users into clicking real actions such as transfers or password changes (clickjacking).

3 asset(s) affected · worth +1 points · how to set HSTS, CSP and other security headers →

lowNo Content Security Policy

Without it, any injected script runs: session theft, fake payment forms, or card-skimming scripts on compromised pages. CSP limits the damage even when something else fails.

2 asset(s) affected · worth +1 points · how to set HSTS, CSP and other security headers →

lowX-Content-Type-Options missing

Without it a file uploaded as an image can be executed as HTML/JavaScript on your domain, stealing same-site cookies and sessions.

2 asset(s) affected · worth +1 points · how to set HSTS, CSP and other security headers →

lowDNSSEC not enabled

Without it, attackers can poison caches or forge answers and send visitors to a lookalike server that harvests credentials.

1 asset(s) affected · worth +1 points · what DNSSEC prevents and how to enable it →

lowNo DKIM key found on common selectors

Without DKIM, mail integrity cannot be verified and DMARC loses one of its two authentication pillars. Note we probed only 46 common selectors, so a custom selector may exist.

1 asset(s) affected · worth +1 points · look up DKIM keys with the free DKIM tool →

lowCookies without Secure/HttpOnly (INGRESSCOOKIE, app_token)

Missing Secure lets cookies travel in plaintext; missing HttpOnly lets injected scripts steal sessions; missing SameSite enables CSRF. Affected: INGRESSCOOKIE, app_token.

1 asset(s) affected · worth +1 points · how to set HSTS, CSP and other security headers →

Checks passed

  • Mail exchangers configured
  • SPF record is valid
  • Name servers are redundant
  • Clickjacking protection enabled
  • MIME sniffing disabled
  • No API keys found in front-end bundles
  • Only modern TLS versions are enabled
  • No weak cipher suites accepted
  • Certificate is valid and trusted
  • No shadow-AI services exposed
  • No mail-server IP on spam blocklists

What we detected

web server
nginx
subdomain count
56

What could not be fully checked

Frequently asked questions about cnooc.com.cn security

Does cnooc.com.cn have DMARC protection against email spoofing?
No. No DMARC record was found for cnooc.com.cn, so mail forged from @cnooc.com.cn has no policy-based barrier at all.
How is cnooc.com.cn's F security grade calculated?
CyberTrust scores cnooc.com.cn passively across 6 area(s) — reputation and credential exposure 100/100; DNS hygiene 84/100; email spoofing defences (SPF/DKIM/DMARC) 44/100; TLS encryption and certificates 44/100; HTTP security headers 0/100; external attack surface 0/100 — and combines them by weight into the overall score of 38/100, which maps to grade F.
What is the most serious issue found on cnooc.com.cn?
Database exposed to the internet: Elasticsearch on 138.113.199.31:9200 (severity critical). Automated bots continuously scan for Elasticsearch on 138.113.199.31:9200 (hosts: bid.cnooc.com.cn, bid.cnooc.com.cn, hxfile.cloud.cnooc.com.cn) and try weak passwords or known exploits; the usual outcome is a full data exfiltration or ransomware wiping. Fixing it is worth about +19 points.
How many subdomains does cnooc.com.cn expose?
This scan observed 56 publicly resolvable subdomain(s) for cnooc.com.cn. Verified owners get the full list, with each host's open ports and running services.

What a verified owner of cnooc.com.cn sees

Everything above is what anyone can observe from the internet. Domain owners who verify ownership additionally get the full asset inventory — every subdomain with its open ports and running services — look-alike and typosquatting domains registered against the brand, credential-exposure monitoring, and copy-paste fixes for each finding.

Verify ownership of cnooc.com.cn (free) → Open the live interactive report →