CVE-2021-29210 : What You Need to Know

A remote dom xss, crlf injection vulnerability was discovered in HPE Integrated Lights-Out 4 (iLO 4) and HPE Integrated Lights-Out 5 (iLO 5) affecting certain versions. This CVE has the potential to impact the security of HPE Gen9 and Gen10 servers.

Understanding CVE-2021-29210

This section dives into the details of the CVE-2021-29210 vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2021-29210?

CVE-2021-29210 is a remote dom xss, crlf injection vulnerability found in HPE Integrated Lights-Out 4 (iLO 4) and HPE Integrated Lights-Out 5 (iLO 5), along with other HPE server models. Attackers could exploit this flaw to inject malicious code through cross-site scripting and control characters, potentially leading to unauthorized access or data manipulation.

The Impact of CVE-2021-29210

The vulnerability poses a serious security risk to HPE Gen9 servers with older versions of iLO 4 and HPE Gen10 servers with older versions of iLO 5. Successful exploitation could allow threat actors to compromise the servers, steal sensitive information, or disrupt critical operations.

Technical Details of CVE-2021-29210

Let's explore the technical aspects of CVE-2021-29210 in terms of the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The flaw in HPE Integrated Lights-Out 4 (iLO 4) and HPE Integrated Lights-Out 5 (iLO 5) allows a remote attacker to perform dom xss and crlf injection attacks, enabling them to execute arbitrary code or scripts on the target system.

Affected Systems and Versions

This vulnerability impacts HPE Gen9 servers running versions of iLO 4 prior to 2.78 and HPE Gen10 servers with iLO 5 versions earlier than 2.44. The exact affected systems include HPE SimpliVity 380 Gen9, HPE SimpliVity 380 Gen10, HPE SimpliVity 2600, HPE SimpliVity 380 Gen10 G, HPE SimpliVity 325, and HPE SimpliVity 380 Gen10 H.

Exploitation Mechanism

Threat actors can exploit CVE-2021-29210 by injecting malicious scripts or control characters via specially crafted requests to vulnerable HPE servers. Once successful, they can gain unauthorized access, steal data, or disrupt server operations.

Mitigation and Prevention

To address CVE-2021-29210, immediate steps, long-term security practices, and the importance of patching and updates are crucial.

Immediate Steps to Take

Organizations utilizing impacted HPE servers should apply security best practices, restrict network access to vulnerable systems, and monitor for any suspicious activities that might indicate exploitation.

Long-Term Security Practices

Implementing robust cybersecurity measures, conducting regular security assessments, and keeping up-to-date with security advisories can help enhance the overall resilience of server environments against similar vulnerabilities.

Patching and Updates

HPE has released patches for iLO 4 and iLO 5 to address the vulnerability. Organizations are advised to promptly apply the necessary patches and firmware updates to protect their systems from potential exploits.