CVE-2021-39027 : Vulnerability Insights and Analysis
Learn about CVE-2021-39027, a security vulnerability in IBM Guardium Data Encryption versions 4.0.0 and 5.0.0. Understand the impact, technical details, and mitigation steps.
This CVE article provides details about a vulnerability in IBM Guardium Data Encryption versions 4.0.0 and 5.0.0.
Understanding CVE-2021-39027
CVE-2021-39027 is a security vulnerability affecting IBM Guardium Data Encryption versions 4.0.0 and 5.0.0.
What is CVE-2021-39027?
IBM Guardium Data Encryption (GDE) versions 4.0.0 and 5.0.0 have an issue where the structured message prepared for communication with another component lacks proper encoding or escaping of the data. This results in the message's intended structure not being preserved. The IBM X-Force ID for this vulnerability is 213865.
The Impact of CVE-2021-39027
The vulnerability has the following impact based on CVSS v3.0 metrics:
- Base Score: 3 (Low)
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: Low
- User Interaction: Required
- Exploit Code Maturity: Unproven
- Impact: Low integrity impact with no confidentiality or availability impact
Technical Details of CVE-2021-39027
This section covers the technical aspects of the vulnerability.
Vulnerability Description
The issue arises from the incorrect encoding or escaping of data in the structured messages prepared for communication, leading to message structure corruption.
Affected Systems and Versions
- Product: Guardium Data Encryption
- Vendor: IBM
- Versions Affected: 4.0.0, 5.0.0
Exploitation Mechanism
The vulnerability requires an attacker to have network access and exploit the lack of proper data encoding within the communication message.
Mitigation and Prevention
Steps to address and prevent exploitation of the vulnerability.
Immediate Steps to Take
- Apply the official fix provided by IBM for versions 4.0.0 and 5.0.0.
- Monitor network communications for any unusual activities.
Long-Term Security Practices
- Regularly update the Guardium Data Encryption software.
- Conduct thorough security assessments and audits of communication protocols.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
IBM has released an official fix to address this vulnerability. It is recommended to apply the patch as soon as possible.