Atlassian Releases Security Updates for Zero Day Vulnerability in Confluence Data Center and Server

The security update addresses a broken access control vulnerability in Confluence Data Center and Server

Threat ID:: CC-4390
Threat Severity:: Medium
Published:: 9 October 2023 1:25 PM

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Summary

The security update addresses a broken access control vulnerability in Confluence Data Center and Server

Affected platforms

The following platforms are known to be affected:

Atlassian Confluence Data Center

The following versions are affected:

8.0.0
8.0.1
8.0.2
8.0.3
8.0.4
8.1.0
8.1.1
8.1.3
8.1.4
8.2.0
8.2.1
8.2.2
8.2.3
8.3.0
8.3.1
8.3.2
8.4.0
8.4.1
8.4.2
8.5.0
8.5.1

Atlassian Confluence Server

The following versions are affected:

8.0.0
8.0.1
8.0.2
8.0.3
8.0.4
8.1.0
8.1.1
8.1.3
8.1.4
8.2.0
8.2.1
8.2.2
8.2.3
8.3.0
8.3.1
8.3.2
8.4.0
8.4.1
8.4.2
8.5.0
8.5.1

Threat details

Introduction

Atlassian has released a security update to address a zero day vulnerability in Confluence Data Center and Server. The critical vulnerability, known as CVE-2023-22515, has a CVSSv3 score of 10. The vulnerability can be exploited by an attacker to create unauthorised Confluence administrator accounts and access Confluence instances.

Atlassian has confirmed that Atlassian Cloud sites and Confluence sites which are accessed via an atlassian.net domain, are not vulnerable to this issue.

Exploitation of CVE-2023-22515

Atlassian have reported that CVE-2023-22515 is being actively exploited in the wild.

Remediation advice

Affected organisations are encouraged to review the following Atlassian security advisory and upgrade to a fixed version.

Definitive source of threat updates

https://confluence.atlassian.com/security/cve-2023-22515-privilege-escalation-vulnerability-in-confluence-data-center-and-server-1295682276.html

CVE Vulnerabilities

Status Published

CVE-2023-22515

Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue. For more details, please review the linked advisory on this CVE.

Last edited: 9 October 2023 1:25 pm