CVE-2020-4412 : Vulnerability Insights and Analysis
Learn about CVE-2020-4412, a Medium severity denial of service vulnerability in IBM Spectrum Scale versions 4.2.0.0 to 4.2.3.21 and 5.0.0.0 to 5.0.4.3, impacting system functionality.
A denial of service vulnerability affecting IBM's Spectrum Scale versions 4.2.0.0 to 4.2.3.21 and 5.0.0.0 to 5.0.4.3, allowing attackers to disrupt system functionality.
Understanding CVE-2020-4412
This CVE involves a security vulnerability in the file system component of IBM's Spectrum Scale, potentially leading to a denial of service attack.
What is CVE-2020-4412?
The Spectrum Scale versions mentioned are susceptible to a denial of service flaw that can be exploited to cause the Spectrum Scale mmfsd/mmsdrserv daemons to crash, impacting cluster functionality and file system availability.
The Impact of CVE-2020-4412
- CVSS Base Score: 5.3 (Medium Severity)
- Attack Vector: Network
- Attack Complexity: Low
- Availability Impact: Low
- Exploit Code Maturity: Unproven
- Affected Systems: Spectrum Scale 4.2.0.0 to 4.2.3.21, 5.0.0.0 to 5.0.4.3
Technical Details of CVE-2020-4412
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows attackers to crash critical daemons, disrupting the Spectrum Scale cluster's functionality and file system availability.
Affected Systems and Versions
- IBM Spectrum Scale 4.2.0.0 to 4.2.3.21
- IBM Spectrum Scale 5.0.0.0 to 5.0.4.3
Exploitation Mechanism
Attackers can exploit this vulnerability to force the mmfsd/mmsdrserv daemons to exit unexpectedly, causing a denial of service condition.
Mitigation and Prevention
To address CVE-2020-4412, follow these mitigation strategies:
Immediate Steps to Take
- Apply official fixes provided by IBM to patch the vulnerability.
- Monitor IBM's security bulletins for updates and advisories.
Long-Term Security Practices
- Regularly update and patch Spectrum Scale installations.
- Implement network security measures to prevent unauthorized access.
- Conduct regular security assessments and audits.
Patching and Updates
- IBM has released official fixes to address the vulnerability. Ensure timely application of these patches to secure affected systems.