Twilio Reveals Another Breach from the Same Hackers Behind the August Hack

Communication services provider Twilio this week disclosed that it experienced another "brief security incident" in June 2022 perpetrated by the same threat actor behind the August hack that resulted in unauthorized access of customer information. The security event occurred on June 29, 2022, the...

Cloudflare Public Bug Bounty: Extraction of Pages build scripts, config values, tokens, etc. via symlinks

A vulnerability was discovered in Pages build scripts that allowed malicious actors to extract build source/configuration and environment variables via symlinks due to broader permission set on certain folders within the filesystem structure. The issue was remediated by tightening permissions on...

CVE-2022-3320 Bypassing Cloudflare Zero Trust policies using warp-cli set-custom-endpoint command

It was possible to bypass policies configured for Zero Trust Secure Web Gateway by using warp-cli 'set-custom-endpoint' subcommand. Using this command with an unreachable endpoint caused the WARP Client to disconnect and allowed bypassing administrative restrictions on a Zero Trust enrolled...

CVE-2022-3320 Bypassing Cloudflare Zero Trust policies using warp-cli set-custom-endpoint command

It was possible to bypass policies configured for Zero Trust Secure Web Gateway by using warp-cli 'set-custom-endpoint' subcommand. Using this command with an unreachable endpoint caused the WARP Client to disconnect and allowed bypassing administrative restrictions on a Zero Trust enrolled...

CVE-2022-3321

CVE-2022-3321 affects the Cloudflare WARP iOS client. The issue arises when a user enables both “Disable for cellular networks” and “Disable for Wi‑Fi networks” in the app settings, which causes the WARP client to disconnect and allows bypassing restrictions and policies enforced by the Zero Trus...

Cloudflare WARP 安全漏洞

Cloudflare WARP Cloudflare Vpn is a client application for secure connections from Cloudflare, Inc. in the United States. A security vulnerability exists in Cloudflare WARP Zero Trust Secure Web Gateway, which stems from an attacker's ability to disconnect the WARP client and bypass the "lock WAR...

Cloudflare WARP 安全漏洞

Cloudflare WARP Cloudflare Vpn is a client application for secure connectivity from Cloudflare, Inc. in the United States. A security vulnerability exists in Cloudflare WARP Zero Trust Secure Web Gateway, which stems from the fact that an attacker can bypass its configuration policy by using the...

Cloudflare WARP 安全漏洞

Cloudflare WARP Cloudflare Vpn is a client application for secure connectivity from Cloudflare, Inc. A security vulnerability exists in Cloudflare WARP, which can be exploited to bypass the lock WARP switch feature on the WARP iOS mobile client by enabling both the "Disable Cellular Networks" and...

Cloudflare WARP 数据伪造问题漏洞

Cloudflare WARP Cloudflare Vpn is a client application for secure connectivity from Cloudflare, Inc. A security vulnerability exists in the Cloudflare WARP Zero Trust platform that stems from insufficient policy validation in the WARP iOS client, which allows an attacker to bypass the Lock Warp...

PT-2022-21776 · Cloudflare · Cloudflare Warp

Name of the Vulnerable Software and Affected Versions: Cloudflare WARP mobile client affected versions not specified Description: The issue allowed a user to delete a VPN profile from the WARP mobile client on the iOS platform, despite the Lock WARP switch feature being enabled on the Zero Trust...

Cloudflare OctoRPKI 安全漏洞

Cloudflare OctoRPKI is an RPKI toolkit for the Cloudflare platform from Cloudflare, Inc. in the United States. A security vulnerability exists in Cloudflare OctoRPKI. An attacker exploiting this vulnerability could create an overly long CA chain, causing OctoRPKI to exceed its maximum iteration...

Link Preload XSS

Description Link preloads do not effectively confirm if the requested link is external. Parser differentials can be used to bypass existing external URL check. Root Cause payload.client.ts contains the following code on link prefetch: ts nuxtApp.hooks.hook'link:prefetch', url = if...

Mirai Botnet Hits Wynncraft Minecraft Server with 2.5 Tbps DDoS Attack

Web infrastructure and security company Cloudflare disclosed this week that it halted a 2.5 Tbps distributed denial-of-service DDoS attack launched by a Mirai botnet. Characterizing it as a "multi-vector attack consisting of UDP and TCP floods," researcher Omer Yoachimik said the DDoS attack...

Cloudflare Public Bug Bounty: Cloudflare is not properly deleting user's account

Vulnerability description not provided...

Cloudflare Public Bug Bounty: cd=false (DNSSEC) not respected in DNS over HTTPS JSON requests

The value of the cd check disabled flag was not correctly validated in DNS-over-HTTPS JSON API requests to cloudflare-dns.com. In result, despite explicitly setting the flag value to 0 or false according to the Cloudflare 1.1.1.1 documentation the DNSSEC verification was not enforced for an unawa...

Denial Of Service (DoS)

github.com/cloudflare/goflow is vulnerable to denial of service. The vulnerability exists in the DecodeTemplateSet function of netflow.go due to improper handling of sflow packets in the sflow decode package, which allows an attacker to craft malformed packets to consume a huge memory resulting i...

GHSA-9RPW-2H95-666C Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package

Impact The sflow decode package prior to version 3.4.4 does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume huge amounts of memory resulting in a denial of service. Specific Go Packages...

Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package

Impact The sflow decode package prior to version 3.4.4 does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume huge amounts of memory resulting in a denial of service. Specific Go Packages...

Cloudflare Takes a Stab at a Captcha That Doesn’t Suck

The internet infrastructure company has an alternative tool to check whether you’re human—and it doesn’t force you to pick out buses in tiny boxes...

Cloudflare Public Bug Bounty: Take over subdomains of r2.dev using R2 custom domains

███████ ████ ████ ███████████████████████████ ███ ██████████ It is possible to take over any subdomain of r2.dev possible also the base domain and have it serve the contents of an R2 bucket in your account. Requirements Access to R2 public buckets in the dashboard is currently behind a flag. The...