CVE-2023-48314 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2023-48314, focusing on the security vulnerability related to the unescaped passing of the request URL in Collabora Online.

Understanding CVE-2023-48314

CVE-2023-48314 is a security vulnerability that impacts Collabora Online, a collaborative online office suite based on LibreOffice technology. The vulnerability arises from improper neutralization of input during web page generation, specifically involving the passing of the request URL.

What is CVE-2023-48314?

The vulnerability in CVE-2023-48314, assigned a CVSS base score of 7.1, allows attackers to exploit Collabora Online users via proxy.php. It affects versions of Collabora Online - Built-in CODE Server (richdocumentscode) prior to release 23.5.403.

The Impact of CVE-2023-48314

Due to the vulnerability, users of Collabora Online integrated with Nextcloud can be exposed to Cross-Site Scripting (XSS) attacks. Attackers can manipulate the request URL to inject malicious scripts, potentially leading to data theft or unauthorized actions on behalf of the user.

Technical Details of CVE-2023-48314

The following technical details outline the specifics of the CVE-2023-48314 vulnerability.

Vulnerability Description

The vulnerability stems from the unescaped passing of the request URL in Collabora Online, enabling attackers to execute XSS attacks by injecting malicious scripts.

Affected Systems and Versions

Vendor: CollaboraOnline
Product: online
Affected Versions: < 23.5.403

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the request URL in Nextcloud with Collabora Online Built-in CODE Server, leveraging the improper input neutralization to execute XSS attacks.

Mitigation and Prevention

Protecting systems from CVE-2023-48314 requires immediate actions and long-term security practices.

Immediate Steps to Take

Users and administrators are strongly advised to update Collabora Online to the fixed release 23.5.403 to remediate the vulnerability. It is crucial to apply this patch promptly to prevent exploitation.

Long-Term Security Practices

To enhance security posture and prevent similar vulnerabilities, organizations should implement secure coding practices, conduct regular security assessments, and stay informed about software updates and security advisories.

Patching and Updates

Regularly monitor for security patches and updates from CollaboraOnline and promptly apply them to ensure systems are protected against known vulnerabilities.