#VU101068 Resource exhaustion in Tornado - CVE-2024-52804

Vulnerability identifier: #VU101068

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-52804

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tornado
Server applications / Web servers

Vendor: Tornado

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when parsing HTTP cookies. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Tornado: 6.0 - 6.4.1

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External links
https://github.com/advisories/GHSA-7pwv-g7hj-39pr
https://github.com/tornadoweb/tornado/commit/d5ba4a1695fbf7c6a3e54313262639b198291533
https://github.com/tornadoweb/tornado/security/advisories/GHSA-8w49-h785-mj3c

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.