CVE-2023-27874 : Exploit Details and Defense Strategies

This CVE-2023-27874 article provides insights into the vulnerability identified in IBM Aspera Faspex version 4.4.2, where an XML external entity injection (XXE) attack can be executed by a remote authenticated attacker.

Understanding CVE-2023-27874

IBM Aspera Faspex 4.4.2 is susceptible to an XXE attack during the processing of XML data. This vulnerability could be exploited by a remote authenticated attacker to run arbitrary commands.

What is CVE-2023-27874?

The CVE-2023-27874 vulnerability in IBM Aspera Faspex 4.4.2 involves an XML external entity injection (XXE) attack vector. This could potentially lead to the execution of unauthorized commands by a malicious actor who is authenticated remotely.

The Impact of CVE-2023-27874

The impact of CVE-2023-27874 is classified as critical with a base severity score of 9.9 according to CVSS v3.1 metrics. The confidentiality, integrity, and availability of the affected system are all at high risk due to this vulnerability.

Technical Details of CVE-2023-27874

This section delves into the technical aspects of the CVE-2023-27874 vulnerability, including a description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

IBM Aspera Faspex 4.4.2 is prone to an XML external entity injection (XXE) attack, allowing a remote authenticated attacker to execute arbitrary commands. The CWE associated with this vulnerability is CWE-611 - Improper Restriction of XML External Entity Reference.

Affected Systems and Versions

The vulnerable product in this CVE is Aspera Faspex, specifically version 4.4.2, developed by IBM.

Exploitation Mechanism

The exploitation of the CVE-2023-27874 vulnerability involves injecting XML external entities into the processing of XML data by IBM Aspera Faspex 4.4.2, enabling the execution of unauthorized commands.

Mitigation and Prevention

To address the CVE-2023-27874 vulnerability, immediate steps, long-term security practices, and the significance of patching and updates are crucial for safeguarding systems.

Immediate Steps to Take

Promptly applying security patches or updates released by IBM for Aspera Faspex 4.4.2 can help mitigate the risk posed by the XXE vulnerability. Additionally, restricting access and monitoring XML data processing can enhance security.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and educating users on safe data handling practices can contribute to long-term resilience against XXE attacks.

Patching and Updates

Regularly monitoring for security advisories from IBM and promptly applying patches or updates to the affected Aspera Faspex version 4.4.2 is imperative to prevent exploitation of the XXE vulnerability.