Confluence Data Center and Server update for struts2-core



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-41835
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Atlassian Confluence Server
Server applications / Web servers

Confluence Data Center
Server applications / Other server solutions

Vendor Atlassian

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU80762

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-41835

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly handles multipart requests. A remote attacker can send a specially crafted multipart request with fields that exceed the maxStringLength  limit and force the application to use disk excessively even if the request was denied.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 1.1.2 - 8.7.1

Confluence Data Center: 1.1.2 - 8.7.1

CPE2.3 External links

http://jira.atlassian.com/browse/CONFSERVER-94106


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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