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Home Alerts

New TE.0 HTTP Flaw Affecting Google Cloud

July 19, 2024
Reading Time: 3 mins read
in Alerts
New TE.0 HTTP Flaw Affecting Google Cloud

A new variant of HTTP Request Smuggling, known as TE.0, has recently emerged as a significant security threat affecting Google Cloud’s infrastructure. This vulnerability exploits inherent discrepancies in how web servers and proxies interpret HTTP request sequences, enabling attackers to manipulate the sequence of requests processed by these systems. TE.0 leverages Transfer-Encoding methods similar to the CL.0 variant but with distinct strategies aimed at compromising systems, including those protected by Google’s Identity-Aware Proxy (IAP). This exploit has had a notable impact across various websites hosted on Google Cloud, particularly those configured with HTTP/1.1 rather than the more resilient HTTP/2 protocol, potentially leading to unauthorized access and compromising sensitive data.

Researchers from BugCrowd, including Paolo Arnolfo and Guillermo Gregorio, played a crucial role in identifying and detailing TE.0’s operation. Their findings underscore the persistent challenges in maintaining robust security measures across dynamic cloud environments, where even advanced protections like IAP can be vulnerable to sophisticated exploitation techniques. The discovery of TE.0 highlights the ongoing imperative for continuous security testing and adaptive defenses in cloud infrastructures to mitigate emerging threats such as HTTP Request Smuggling.

Google Cloud has acknowledged the severity of the vulnerability and is actively addressing the issue, despite initial challenges in detection and response. This incident serves as a poignant reminder of the complexities involved in safeguarding cloud infrastructures against evolving cyber threats. It underscores the critical need for collaborative efforts between cybersecurity researchers, cloud service providers, and IT security professionals to fortify defenses, safeguard digital assets, and maintain trust in cloud-based services. As HTTP Request Smuggling techniques evolve, proactive vigilance and agile security strategies will be crucial in effectively thwarting sophisticated tactics employed by malicious actors targeting cloud-hosted applications and sensitive data repositories.

Reference:

  • Google Cloud Vulnerable to TE.0 HTTP Request Smuggling Flaw
Tags: BugcrowdCloudCyber AlertsCyber Alerts 2024Cyber RiskCyber threatGoogleGoogle CloudHTTPJuly 2024Smuggling
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