Vulnerability identifier: #VU100587

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-52317

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Apache Tomcat
Server applications / Web servers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper management of internal resources when handling HTTP/2 responses, which causes request and/or response mix-up between users. A remote non-authenticated attacker can send a series of HTTP/2 requests and gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Tomcat: 9.0.0-M1 - 9.0.95, 10.0.0-M1 - 10.0.27, 10.1.0-M1 - 10.1.30, 11.0.0-M1 - 11.0.0-M26

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External links
http://tomcat.apache.org/security-9.html
http://tomcat.apache.org/security-10.html
http://tomcat.apache.org/security-11.html

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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. However, proof of concept for this vulnerability is available.