tornado up to 6.4.1 HTTP Parser resource consumption

Summaryinfo

A vulnerability has been found in tornado up to 6.4.1 and classified as problematic. This impacts an unknown function of the component HTTP Parser. Performing a manipulation results in resource consumption. This vulnerability is known as CVE-2024-52804. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in tornado up to 6.4.1. It has been classified as critical. This affects an unknown part of the component HTTP Parser. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2024-52804 since 11/15/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 211988 (RHEL 9 : python-tornado (RHSA-2024:10590)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.4.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211988). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• tornado

Version

• 6.4.0
• 6.4.1

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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