CVE-2021-44140 : What You Need to Know

Apache JSPWiki has a vulnerability that allows remote attackers to delete arbitrary files. Users of versions up to 2.11.0.M8 are affected and should upgrade to 2.11.0 or later.

Understanding CVE-2021-44140

Apache JSPWiki is susceptible to a file deletion issue that can be exploited remotely.

What is CVE-2021-44140?

CVE-2021-44140 is a vulnerability in Apache JSPWiki up to version 2.11.0.M8 that permits remote attackers to delete arbitrary files on a system hosting a JSPWiki instance through a carefully crafted HTTP request on logout.

The Impact of CVE-2021-44140

The vulnerability could lead to unauthorized deletion of critical files in the system, potentially causing data loss and disruption of services.

Technical Details of CVE-2021-44140

Apache JSPWiki vulnerability specifics and affected systems.

Vulnerability Description

Remote attackers exploiting this vulnerability can delete files on the host system by manipulating the logout HTTP request, provided the files are accessible to the user running JSPWiki.

Affected Systems and Versions

Product: Apache JSPWiki
Vendor: Apache Software Foundation
Vulnerable Versions: Up to and including 2.11.0.M8

Exploitation Mechanism

Attackers can exploit this issue by sending a specifically crafted HTTP request during a logout, enabling them to delete files on the compromised system.

Mitigation and Prevention

Steps to address and prevent the CVE-2021-44140 vulnerability.

Immediate Steps to Take

Users of Apache JSPWiki should upgrade to version 2.11.0 or later to mitigate the risk of file deletion attacks.

Long-Term Security Practices

Regularly monitor and audit file accessibility permissions to prevent unauthorized actions.
Educate users on secure logout practices to reduce the likelihood of manipulation attempts.

Patching and Updates

Stay informed about security updates from Apache Software Foundation and promptly apply patches to address known vulnerabilities.