Two vulnerabilities in Confluence Data Center and Server

Published: 2023-11-24 | Updated: 2024-03-26

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-28366 CVE-2022-24839
CWE-ID	CWE-20
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 information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU77777

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28366

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of crafted Processing Instruction (PI) input. A remote attacker can trick the victim to visit a specially crafted web page and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Atlassian Confluence Server: 8.6.0

Confluence Data Center: 8.6.0

External links

http://jira.atlassian.com/browse/CONFSERVER-93169

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.

2) Improper input validation

EUVDB-ID: #VU65486

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-2022-24839