CVE-2020-4383 : Security Advisory and Response
Learn about CVE-2020-4383, a medium-severity vulnerability in IBM Spectrum Scale for IBM Elastic Storage Server 5.3.0 through 5.3.5, allowing a denial of service attack during deployment.
IBM Spectrum Scale for IBM Elastic Storage Server 5.3.0 through 5.3.5 could allow an authenticated user to cause a denial of service during deployment while configuring some of the network services.
Understanding CVE-2020-4383
This CVE involves a vulnerability in IBM Spectrum Scale for IBM Elastic Storage Server that could lead to a denial of service attack.
What is CVE-2020-4383?
CVE-2020-4383 is a medium-severity vulnerability that affects IBM Elastic Storage Server versions 5.3.0 through 5.3.5. It allows an authenticated user to trigger a denial of service by manipulating network services during deployment.
The Impact of CVE-2020-4383
The vulnerability poses a medium risk, with a CVSS base score of 5.3. An attacker could exploit this issue to disrupt the availability of the affected systems, potentially causing service downtime.
Technical Details of CVE-2020-4383
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability in IBM Spectrum Scale for IBM Elastic Storage Server 5.3.0 through 5.3.5 enables an authenticated user to launch a denial of service attack during deployment while configuring specific network services.
Affected Systems and Versions
- Product: Elastic Storage Server
- Vendor: IBM
- Versions Affected: 5.3.0, 5.3.6
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Privileges Required: Low
- Exploit Code Maturity: Unproven
- Availability Impact: High
- Scope: Unchanged
Mitigation and Prevention
Protecting systems from CVE-2020-4383 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply the official fix provided by IBM to address the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate an ongoing attack.
Long-Term Security Practices
- Regularly update and patch the Elastic Storage Server to prevent known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct security training for users to recognize and report unusual system behavior.
Patching and Updates
- Stay informed about security bulletins and updates from IBM to deploy patches promptly.