CVE-2023-22522 is a high-severity Template Injection vulnerability affecting Atlassian Confluence Data Center and Server. This vulnerability allows an authenticated attacker, including those with anonymous access, to inject unsafe user input into a Confluence page. Consequently, attackers may achieve Remote Code Execution (RCE) on the affected instance. Organizations using publicly accessible versions of Confluence Data Center and Server are at significant risk and must address this vulnerability immediately.
The vulnerability received a CVSS score of 8.8, categorizing it as high severity. This score indicates that the vulnerability is network-exploitable with low attack complexity, requiring minimal privileges and no user interaction. The potential impacts on confidentiality, integrity, and availability are all rated as high.
Publicly accessible Confluence Data Center and Server versions are at risk and require immediate attention. Conversely, 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.
Organizations should prioritize patching immediately to mitigate the risks posed by this vulnerability. Failure to address it could result in significant security breaches, including unauthorized access and potential data loss.
Vulnerability Details
The official description of CVE-2023-22522 states: This Template Injection vulnerability allows an authenticated attacker, including one with anonymous access, to inject unsafe user input into a Confluence page. Using this approach, an attacker is able to achieve Remote Code Execution (RCE) on an affected instance. Publicly accessible Confluence Data Center and Server versions as listed are at risk and require immediate attention.
The CVSS score for this vulnerability is 8.8, indicating high severity. The vulnerability impacts confidentiality, integrity, and availability, making it critical for organizations to respond effectively.
Affected versions include: - Confluence Data Center versions 4.0 to 7.19.17, 8.0.0 to 8.4.5, 8.5.0 to 8.5.4, 8.6.0 to 8.6.2, and 8.7.0; - Confluence Server versions 4.0 to 7.19.17, 8.0.0 to 8.4.5, and 8.5.0 to 8.5.4.
Technical Analysis
The root cause of this vulnerability lies in improper validation of user input in Confluence pages, allowing attackers to inject malicious templates. The attack vector is network-based, with low attack complexity, and requires low privileges with no user interaction needed. The potential impacts on confidentiality, integrity, and availability are rated as high, indicating that sensitive data could be compromised.
Risk & Impact Analysis
The real-world deployment risk of CVE-2023-22522 is significant. Attackers may leverage this vulnerability to execute arbitrary code on affected instances, potentially leading to unauthorized access and data breaches. Organizations should assess the blast radius potential based on the number of exposed instances and the sensitivity of the data stored within. The urgency for defenders is high, as the CVSS score suggests a critical need for immediate remediation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of Atlassian Confluence Data Center and Server are affected by this vulnerability: - Confluence Data Center: 4.0 to 7.19.17, 8.0.0 to 8.4.5, 8.5.0 to 8.5.4, 8.6.0 to 8.6.2, and 8.7.0; - Confluence Server: 4.0 to 7.19.17, 8.0.0 to 8.4.5, and 8.5.0 to 8.5.4. Organizations should ensure that these versions are updated to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should prioritize applying patches to affected versions of Confluence Data Center and Server as soon as possible. The recommended actions include: 1. Upgrade to the latest version of Confluence that addresses this vulnerability; 2. Implement configuration hardening measures to limit unnecessary exposure; 3. Ensure continuous monitoring for any unauthorized access attempts.
Detection Guidance
Security teams should monitor logs for any suspicious activity related to Confluence pages, including unusual user access patterns or unauthorized changes to page content. Additionally, implementing network signatures to detect exploitation attempts can further enhance security posture.
AppSecure Threat Intelligence Insight
CVE-2023-22522 underscores the critical need for organizations to maintain robust security practices, including regular updates and vulnerability management. It reflects broader trends in exploiting template injection vulnerabilities, which can lead to significant breaches if left unaddressed. Security teams are encouraged to review their configuration management and incident response strategies to prevent similar vulnerabilities in the future.
For further guidance on improving security practices, organizations may consider engaging in penetration testing to identify and remediate potential weaknesses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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