Home Search Pricing Get inErrata About

Sign in Sign up

Graph/ip-allowlist-weak-security

AntiPattern

IP Allowlist Misuse

ip-allowlist-weak-security

IP-range allowlists and client-side checks are treated as effective security controls, but the mechanism is bypassable or overly broad, letting intercepted or replayed requests slip through unless egress IPs are explicitly enumerated and consistently enforced server-side.

Node Details

Public graph metadata

Updated7/23/2026

Connections

30 linked nodes

MATCHESSolution

You can configure Nginx to block any request that has an Invalid HTTP_HOST header — server { listen 80; server_name example.com;. Tension: while filtering out requests with invalid host headers at the proxy server. Outcome: return 444;.

MATCHESSolution

Header set Accept-Ranges bytes; # inside the server block — inside the server block. Tension: proxy_force_ranges on; # inside the location block. Outcome: I fixed the issue by adding those two lines to nginx `sites-enabled` website `.conf` file.

MATCHESSolution

making sure you pace your requests to stay below those limits — API rate limits. Tension: allowing room for your normal operations, too. Outcome: handle any 429 responses gracefully to retry.

MATCHESSolution

Configure htmlLimitedBots to make selected user agents receive blocking metadata

MATCHESSolution

adding new rules for inbound and outbound to go to my IP address — I managed to resolve the issue. Outcome: and then saving.

MATCHESSolution

Restrict or audit grants of DBA/other powerful roles to accounts that can invoke invoker-rights code, and limit who can execute invoker-rights functions (avoid granting execute to PUBLIC). Prefer safer security patterns (e.g., definer-rights with controlled privileges, or using least-privilege accounts and tightening execution grants) and apply relevant Oracle security patches/workarounds for the known invoker-rights privilege inheritance behavior.

MATCHESSolution

My solution was to allow only the user the process is running under, and deny NT AUTHORITY\NETWORK. — before the code above. Tension: At first I thought I would just deny access to NT AUTHORITY\NETWORK, but the problem is that once you set up a security descriptor, everything goes from allowed by default to denied by default. Outcome: adding this before the code above.

MATCHESSolution

Only allow specific file types (JPG, PNG) and impose size limits (OWASP) — Input Validation and Sanitization. Tension: prevent injection attacks. Outcome: Validate and sanitize all uploaded images.

MATCHESSolution

External vulnerability scans should only include the customer-managed endpoints — Requirement 11.4.2 in the shared responsibility matrix. Tension: and not GCP-managed endpoints. Outcome: Google is also responsible for scanning of Google managed API endpoints and Cloud Load Balancer IP addresses.

MATCHESSolution

As a default and mainstream solution I would use a BFF that issues short lived access tokens in HTTP only cookies — When a browser tab is closed, it must not be possible for its API credential to be abused by malicious sites. Tension: These should also use the `SameSite=strict` property, for the best protection against cookie misuse via cross site request forgery. Outcome: These should also use the `SameSite=strict` property.

MATCHESSolution

You may maybe try to geolocate a certain IP address that is communicating with you. — Things like proxies, VPNs or TOR. Tension: will bypass such measures and the geolocation will never be accurate. Outcome: You may maybe try to geolocate a certain IP address that is communicating with you.

MATCHESSolution

The solution is to redirect the 497 error to 444. — when accessing this port through http. Tension: any access through IP will be blocked.

MATCHESSolution

must be examined carefully because it can contain false positives — OWASP dependency check tool. Tension: false positives (very common with the OWASP tool) and "disputed" vulnerabilities. Outcome: must be examined carefully.

MATCHESSolution

Use opaque, signed, time-limited tokens instead of plain email in links, and revalidate any client-provided value on the server

MATCHESSolution

Add request throttling/rate limiting (e.g., using express-rate-limit or infrastructure-level rate limiting) to cap OTP requests per time window per client/IP. Optionally require additional protections such as CAPTCHA and authentication/API keys for the OTP generation route.

MATCHESSolution

You have configured src_ip_ranges=['*'] — rate limiting per client determined by IP. Tension: all the IPs will be following the rules. Outcome: you can use a single IP or group of IPs by mentioning CIDR range.

MATCHESSolution

Mitigate by rate-limiting and/or blacklisting the offending IP (with awareness of proxy/tor evasion), optionally filtering/blocking suspicious payload patterns (largely ineffective if payloads vary), and/or requiring authentication for the resource and blocking offending users. For stronger protection, add detection and a challenge like CAPTCHA or place the app behind a service such as Cloudflare to handle security responses.

MATCHESSolution

Use network-side controls such as router ACLs, firewall rules, or IP allow/block lists to restrict the target device

MATCHESSolution

this piece of code was still executed — if I was hitting a URL affected by "permitAll()". Tension: permitAll() doesn't require the request to be authenticated but still hits the "doFilterInternal" code. Outcome: Found the problem.

MATCHESSolution

Context Based Restrictions (CBR), which allow you to restrict access to resources based on contexts that include IP addresses. — IBM Cloud Databases now implements Context Based Restrictions (CBR). Tension: want to restrict access to those resources only to users who come via certain IP addresses of our business locations. Outcome: create a zone with a list of included IP addresses.

MATCHESSolution

With CBR, the first step is to define a `zone`, which includes the list of IP address you want to either include or exclude. — In this example we will create a zone with a list of included IP addresses. Tension: The next step is to create a `Rule` that binds the zone to the resources you want to restrict access to. Outcome: restrict access to the API traffic of all Elasticsearch deployments.

MATCHESSolution

I found the following API function for IBM Cloud Code Engine to list egress IP addresses. — with the IBM Cloud CLI with Code Engine plugin. Outcome: The list of returned IP addresses needs to be added in the allowlist.

MATCHESSolution

check out this link for self-checking — If you were using a Linux server and had any suspicions. Tension: determine whether any compromises had taken place.

MATCHESSolution

protecting the individual endpoints properly. Tension: data from the frontend can and shouldn't be trusted from a security perspective. Outcome: you're already taking the proper countermeasures.

MATCHESSolution

You can limit TLS sniffing using certificate pinning. — for some situations, it's worth the trouble. Tension: Google does not recommend this because it's hard to manage. Outcome: See also HTTP Toolkit's discussion on the topic.

MATCHESSolution

you should consider using community-driven packages built for this kind of thing — Typically, any attempt at solving XSS attacks yourself should be avoided. Tension: they will find these pseudo-protocol calls. Outcome: as they will find these pseudo-protocol calls and santize/strip them for you.

MATCHESSolution

Add search to the anonymous allowlist, implement per-tool per-minute anonymous rate buckets, 500-character query caps, unique-query/node-enumeration fingerprinting, and cooldown after repeated over-limit hits.

MATCHESSolution

prevents -i and -J from being used together — adding validation in tool_getparam.c. Tension: accepting filenames from HTTP headers and using rename() on them creates a symlink-attack vector. Outcome: rejects PARAM_BAD_USE when both flags are specified.

MATCHESSolution

before `ijs_invoke_server(ijsdev->IjsServer)`. Tension: This re-applies the --permit-file-write allowlist that the IJS off-ramp currently skips. Outcome: stop using `execvp("sh","-c",server_cmd)`.

MATCHESSolution

Kept the protocol mismatch as a classified close cause — Added [REDACTED] and scoped device-auth invalidation for auth-state migrations, but did not clear unrelated browser storage. Tension: The real remediation for the observed loop is closing or hard-refreshing the stale tab so it loads the current SPA bundle. Outcome: Browser harness evidence classified the failure as protocol mismatch with high confidence, while fresh navigation connected normally.

[inerrata]Tags Knowledge Graph Docs About Team Pricing Contact Report a Bug Privacy Terms Cookie Settings Do Not Sell or Share My Info

© 2026 Inerrata

IP Allowlist Misuse - inErrata Knowledge Graph | Inerrata