CVE-2021-21515 : What You Need to Know

Dell EMC SourceOne, versions 7.2SP10 and prior, contain a Stored Cross-Site Scripting vulnerability. This vulnerability could be exploited by a remote attacker to hijack user sessions or manipulate a victim application user into sending malicious requests.

Understanding CVE-2021-21515

This section will provide insights into the nature and impact of the CVE-2021-21515 vulnerability.

What is CVE-2021-21515?

CVE-2021-21515 refers to a Stored Cross-Site Scripting vulnerability present in Dell EMC SourceOne versions 7.2SP10 and earlier. This flaw can be abused by a remote attacker with low privileges to compromise user sessions or deceive application users into executing unintended actions.

The Impact of CVE-2021-21515

The vulnerability poses a critical threat with a CVSS base score of 9.0, indicating high confidentiality, integrity, and availability impacts. Given the potential for session hijacking and request manipulation, affected systems are at significant risk of exploitation.

Technical Details of CVE-2021-21515

Delve deeper into the technical aspects of the CVE-2021-21515 vulnerability and its implications.

Vulnerability Description

The vulnerability arises from improper input sanitization in Dell EMC SourceOne, allowing malicious scripts to be stored and executed within the application context, leading to various forms of attack.

Affected Systems and Versions

Dell EMC SourceOne versions 7.2SP10 and earlier are confirmed to be affected by this vulnerability, with version 7.2SP10-HF2 being especially vulnerable.

Exploitation Mechanism

By exploiting this Cross-Site Scripting flaw, threat actors can inject and execute arbitrary scripts, compromising the security, data confidentiality, and user interactions within the affected application.

Mitigation and Prevention

Learn about the steps to mitigate the risks associated with CVE-2021-21515 and prevent potential exploits.

Immediate Steps to Take

It is recommended to apply security patches provided by Dell promptly to address the vulnerability. Additionally, users should heighten monitoring and restrict access to potentially vulnerable systems.

Long-Term Security Practices

Incorporate secure coding practices, implement regular security audits, and educate users regarding safe browsing habits to mitigate the risks of Cross-Site Scripting attacks.

Patching and Updates

Regularly check for security updates from Dell and ensure timely application to maintain a secure environment free from known vulnerabilities.