CVE-2021-26703 : Security Advisory and Response

EPrints 3.4.2 is a vulnerability that allows remote attackers to read arbitrary files and possibly execute commands through manipulated JSON/XML input to a specific URI.

Understanding CVE-2021-26703

This section will cover the key details about CVE-2021-26703.

What is CVE-2021-26703?

CVE-2021-26703 is a security flaw in EPrints 3.4.2 that enables malicious actors to access unauthorized files and potentially run commands by sending specially crafted data to a specific URI.

The Impact of CVE-2021-26703

The impact of this vulnerability includes a risk of unauthorized data access and potential execution of arbitrary commands on the affected system.

Technical Details of CVE-2021-26703

In this section, we will delve into the technical aspects of CVE-2021-26703.

Vulnerability Description

The vulnerability in EPrints 3.4.2 arises from improper handling of input, allowing attackers to manipulate JSON/XML requests to gain unauthorized access and potentially execute commands.

Affected Systems and Versions

EPrints 3.4.2 is confirmed to be affected by this vulnerability, making systems with this version of EPrints susceptible to exploitation.

Exploitation Mechanism

By sending specifically crafted JSON/XML input to a particular URI, attackers can exploit this vulnerability to read sensitive files and potentially execute arbitrary commands.

Mitigation and Prevention

This section will outline the steps to mitigate and prevent exploitation of CVE-2021-26703.

Immediate Steps to Take

Immediately restrict access to the affected URI and validate all incoming JSON/XML data to prevent unauthorized file access and command execution.

Long-Term Security Practices

Implement secure coding practices, perform regular security audits, and keep systems updated to prevent similar vulnerabilities in the future.

Patching and Updates

Apply security patches provided by the vendor promptly to address the vulnerability and enhance the security of the system.