Confluence Data Center and Server update for tomcat-coyote

1) Input validation error

EUVDB-ID: #VU87510

Risk: Medium

CVSSv4.0: 7.7 [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:P/U:Green]

CVE-ID: CVE-2024-24549

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when handling HTTP/2 requests. A remote attacker can send specially crafted HTTP/2 requests to the server and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 2.0 - 8.9.0

Atlassian Confluence Server: 2.0 - 8.9.0

CPE2.3

• cpe:2.3:a:atlassian:confluence_data_center:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:confluence_data_center:2.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:atlassian:atlassian_confluence_server:2.0:*:*:*:*:*:*:*

External links

https://jira.atlassian.com/browse/CONFSERVER-95834
https://jira.atlassian.com/browse/CONFSERVER-98442

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.