May 20, 2024 at 11:42AM
Fluent Bit, a widely used logging utility, has a critical vulnerability allowing DoS attacks, information disclosure, and potential RCE. Tenable found a memory corruption flaw, affecting major cloud and tech companies. While a patch is developed, it’s not released. Users are advised to mitigate risks by restricting API access and endpoint usage if not needed.
Summary of Meeting Notes:
– Fluent Bit, a widely used logging utility, has been found to be affected by a critical vulnerability, CVE-2024-4323, by cybersecurity firm Tenable.
– The vulnerability can lead to denial-of-service (DoS) attacks, information disclosure, and potential remote code execution (RCE).
– Fluent Bit, an open source data collector and processor, has billions of downloads and over 10 million daily deployments, with major users including Microsoft, Google Cloud, AWS, Cisco, LinkedIn, VMware, Splunk, Intel, Arm, and Adobe.
– Tenable discovered a critical memory corruption vulnerability (CVSS score of 9.8) in Fluent Bit’s built-in HTTP server, named Linguistic Lumberjack. They confirmed that it could be exploited for DoS attacks and information disclosure and noted the possibility of RCE.
– Tenable released technical information and a proof-of-concept (PoC) exploit for DoS attacks.
– A patch has been developed for the vulnerability, but it has not yet been included in a formal release, though mitigations are available for users to restrict access to Fluent Bit’s API.
Let me know if you need any additional information or have further questions.