CVE-2017-0888 : Security Advisory and Response

Nextcloud Server versions before 9.0.55 and 10.0.2 are affected by a Content-Spoofing vulnerability in the "files" app, potentially leading to the misrepresentation of information.

Understanding CVE-2017-0888

The vulnerability in Nextcloud Server versions allows for Content-Spoofing, impacting the accuracy of displayed information.

What is CVE-2017-0888?

The vulnerability in the "files" app of affected Nextcloud Server versions enables users to partially control input in the top navigation bar, leading to the display of inaccurate information.

The Impact of CVE-2017-0888

This vulnerability poses a risk of Content-Spoofing, potentially allowing malicious users to manipulate displayed information, leading to confusion or misinformation.

Technical Details of CVE-2017-0888

Nextcloud Server versions before 9.0.55 and 10.0.2 are susceptible to a Content-Spoofing vulnerability in the "files" app.

Vulnerability Description

The vulnerability arises from user-controllable input in the top navigation bar of the files list, enabling the display of inaccurate information.

Affected Systems and Versions

Product: Nextcloud Server
Vendor: Nextcloud
Versions Affected: All versions before 9.0.55 and 10.0.2

Exploitation Mechanism

The vulnerability allows users to manipulate input in the top navigation bar, potentially leading to the misrepresentation of critical information.

Mitigation and Prevention

To address CVE-2017-0888, follow these steps:

Immediate Steps to Take

Update Nextcloud Server to version 9.0.55 or 10.0.2 to mitigate the vulnerability.
Regularly monitor security advisories from Nextcloud for any updates or patches.

Long-Term Security Practices

Educate users on safe browsing practices to minimize the risk of exploitation.
Implement security training for developers to enhance awareness of potential vulnerabilities.

Patching and Updates

Apply patches and updates provided by Nextcloud promptly to ensure the security of the system.