CVE-2023-27876 Explained : Impact and Mitigation

This CVE-2023-27876 involves a vulnerability in IBM TRIRIGA Application Platform that could potentially expose sensitive information or consume memory resources through an XML external entity injection (XXE) attack. It was published on April 7, 2023, by IBM.

Understanding CVE-2023-27876

IBM TRIRIGA 4.0 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. This vulnerability could be exploited by a remote attacker to carry out malicious actions.

What is CVE-2023-27876?

The vulnerability in IBM TRIRIGA 4.0 allows for an XXE attack, where an attacker can manipulate XML input to access, disclose, or consume sensitive data or system resources.

The Impact of CVE-2023-27876

With a CVSS base score of 7.1 and a high severity level, this vulnerability poses a significant risk to the confidentiality of data. While the integrity impact is none, the confidentiality impact is high, and availability impact is low.

Technical Details of CVE-2023-27876

The vulnerability is categorized under CWE-611 - Improper Restriction of XML External Entity Reference. It has a low attack complexity and requires low privileges to be exploited. The attack vector is network-based with no user interaction needed.

Vulnerability Description

The vulnerability arises from IBM TRIRIGA 4.0 processing XML data insecurely, making it susceptible to XXE attacks that could lead to information exposure or resource consumption.

Affected Systems and Versions

Only IBM TRIRIGA Application Platform version 4.0 is affected by this vulnerability.

Exploitation Mechanism

A remote attacker can exploit this vulnerability by crafting malicious XML input to trigger XXE attack scenarios on the target system.

Mitigation and Prevention

It is crucial to take immediate steps to address and mitigate the risks posed by CVE-2023-27876.

Immediate Steps to Take

IBM TRIRIGA 4.0 users should apply patches or updates provided by IBM to fix the vulnerability.
Network administrators should also monitor and restrict external access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to prevent security vulnerabilities.
Implement secure coding practices to mitigate risks associated with XXE attacks.

Patching and Updates

IBM has released patches and updates to address the vulnerability in TRIRIGA 4.0. Users are strongly advised to apply these fixes to secure their systems and data.