Cloudflare Public Bug Bounty: HTTP request smuggling with Origin Rules using newlines in the host_header action parameter

The hostheader action parameter available to rulesets in the Origin Rules API lacked sufficient input validation i.e., allowing CRLF characters. Because of this, it was possible to inject arbitrary headers and, as a consequence, smuggle HTTP requests. This vulnerability enabled bypassing security...

Cloudflare Public Bug Bounty: Arbitrary file read from Cloudflare Pages build environment

A vulnerability in Cloudflare Pages allowed attackers to escalate privileges during the build process, enabling arbitrary file reads. Cloudflare implemented more restrictive input validation on the redirects and headers feature to resolve the issue. The build environment is scoped to each Pages...

Fedora: Security Advisory for golang-github-cloudflare-redoctober (FEDORA-2022-08ae2dd481)

The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Cloudflare Successfully Thwarted One of The Largest DDoS Attacks

By Waqas Cloudflare explained that it wasnt the largest application-layer attack but the largest ever noted in the HTTPS category.… This is a post from HackRead.com Read the original post: Cloudflare Successfully Thwarted One of The Largest DDoS Attacks...

15.3 Million Request-Per-Second DDoS Attack

Cloudflare is reporting a large DDoS attack against an unnamed company "operating a crypto launchpad." While this isnt the largest application-layer attack weve seen, it is the largest weve seen over HTTPS. HTTPS DDoS attacks are more expensive in terms of required computational resources because...

U.S. Dept Of Defense: Found Origin IP's Lead To Access ████

Discovered that the ██████ site exposed its Non-Cloudflare IP which could allow bypassing of anti-DDoS mechanisms. Your origin servers are not blocking access from non-Cloudflare servers.This way crawlers can find your origin servers' IPs by checking random IPs until they found your origin server...

Cloudflare Thwarts Record DDoS Attack Peaking at 15 Million Requests Per Second

Cloudflare on Wednesday disclosed that it acted to mitigate a 15.3 million request-per-second RPS distributed denial-of-service DDoS attack. The web infrastructure and website security company called it one of the "largest HTTPS DDoS attacks on record." "HTTPS DDoS attacks are more expensive in...

Cloudflare Public Bug Bounty: Signup with any Email and Enable 2-FA without verifying Email

It was possible to enable Two-factor authentication feature for an unverified Cloudflare account . As a consequence, a legitimate owner of the e-mail address, which was used to create the unverified account, is unable to log in or reset password to the Cloudflare account. The issue was fixed by t...

Cloudflare Public Bug Bounty: Bypass Cloudflare WARP lock on iOS.

Lock Warp switch is a feature of Zero Trust platform which, when enabled, prevents users of enrolled devices from disabling WARP client. Due to insufficient policy verification by the client, this feature could be bypassed by using the "Disable WARP" quick action. The issue affected WARP client...

SMTP2GO BBP: Origin IP found, WAF Cloudflare Bypass

Description: I have discovered that the http://172.105.190.180/login/ site exposed it's IP which could allow bypassing of anti-DDoS mechanisms i.e you are using Cloudflare for protection. For Originate IP address which I found from https://search.censys.io/ By using these IP address as a resolver...

Kraden: Found Origin IP's Lead To Access To kraden.com

Summary: Discovered that the kraden.com site exposed its Non-Cloudflare IP which could allow bypassing of anti-DDoS mechanisms. Description:Your origin servers are not blocking access from non-Cloudflare servers. This way crawlers can find your origin servers' IPs by checking random IPs until the...

Cloudflare Public Bug Bounty: A malicious actor could rotate tokens of a victim, given that he knows the victim's token ID

API tokens of Cloudflare users were vulnerable to unauthorized rotation by malicious actors who knew the victim's token ID due to lack of proper authorization checks. This could lead to DoS for the token owner and the applications that use it. The vulnerability was fixed by enforcing proper acces...

Lapsus$ Data Kidnappers Claim Snatches From Microsoft, Okta

Both Microsoft and Okta are investigating claims by the new, precocious data extortion group Lapsus$ that the gang has breached their systems. Lapsus$ claimed to have gotten itself “superuser/admin” access to internal systems at authentication firm Okta. It also posted 40GB worth of files to its...

LAPSUS$ Hackers Claim to Have Breached Microsoft and Authentication Firm Okta

Microsoft and authentication services provider Okta said they are investigating claims of a potential breach alleged by the LAPSUS$ extortionist gang. The development, which was first reported by Vice and Reuters, comes after the cyber criminal group posted screenshots and source code of what it...

Ghostbuster - Eliminate Dangling Elastic IPs By Performing Analysis On Your Resources Within All Your AWS Accounts

Eliminate dangling elastic IPs by performing analysis on your resources within all your AWS accounts. Ghostbuster obtains all the DNS records present in all of your AWS accounts Route53, and can optionally take in records via CSV input, or via Cloudflare. After these records are collected,...

Here's How to Find if WhatsApp Web Code on Your Browser Has Been Hacked

Meta Platforms' WhatsApp and Cloudflare have banded together for a new initiative called Code Verify to validate the authenticity of the messaging service's web app on desktop computers. Available in the form of a Chrome and Edge browser extension, the open-source add-on is designed to...

Cloudflare Public Bug Bounty: API docs expose an active token for the sample domain theburritobot.com

A screenshot featured on API token creation documentation page exposed a valid API token with permissions sufficient to modify DNS records of one of Cloudflare’s demo zones. The token has since been revoked...

Cloudflare WARP 1.4 - Unquoted Service Path

Exploit Title: Cloudflare WARP 1.4 - Unquoted Service Path Date: 05/03/2022 Exploit Author: Hejap Zairy Vendor Homepage: https://www.cloudflare.com/ Software Link: https://developers.cloudflare.com/warp-client/get-started/windows/ Version: 1.4.107 Tested: Windows 10 Pro x64 es C:\Users\Hejapsc qc...

Cloudflare WARP 1.4 - Unquoted Service Path Vulnerability

Exploit Title: Cloudflare WARP 1.4 - Unquoted Service Path Exploit Author: Hejap Zairy Vendor Homepage: https://www.cloudflare.com/ Software Link: https://developers.cloudflare.com/warp-client/get-started/windows/ Version: 1.4.107 Tested: Windows 10 Pro x64 es C:\Users\Hejapsc qc CloudflareWARP S...

Cloudflare WARP 1.4 Unquoted Service Path

Exploit Title: Cloudflare WARP 1.4 - Unquoted Service Path Date: 05/03/2022 Exploit Author: Hejap Zairy Vendor Homepage: https://www.cloudflare.com/ Software Link: https://developers.cloudflare.com/warp-client/get-started/windows/ Version: 1.4.107 Tested: Windows 10 Pro x64 es C:\Users\Hejapsc qc...