CVE-2020-29490 : What You Need to Know
Learn about CVE-2020-29490, a Denial of Service vulnerability in Dell EMC Unity, Unity XT, and UnityVSA versions before 5.0.4.0.5.012. Find out the impact, affected systems, and mitigation steps.
Dell EMC Unity, Unity XT, and UnityVSA versions prior to 5.0.4.0.5.012 contain a Denial of Service vulnerability on NAS Servers with NFS exports. A remote authenticated attacker could potentially exploit this vulnerability and cause Denial of Service (Storage Processor Panic) by sending specially crafted UDP requests.
Understanding CVE-2020-29490
This CVE involves a Denial of Service vulnerability in Dell EMC Unity, Unity XT, and UnityVSA versions.
What is CVE-2020-29490?
CVE-2020-29490 is a vulnerability found in Dell EMC Unity, Unity XT, and UnityVSA versions before 5.0.4.0.5.012. It allows a remote authenticated attacker to trigger a Denial of Service attack on NAS Servers with NFS exports.
The Impact of CVE-2020-29490
The vulnerability has a CVSS base score of 7.5 (High severity) and can lead to a Storage Processor Panic, causing a Denial of Service condition with high availability impact.
Technical Details of CVE-2020-29490
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Dell EMC Unity products allows remote authenticated attackers to exploit the NAS Servers with NFS exports, leading to a Denial of Service condition.
Affected Systems and Versions
- Product: Unity
- Vendor: Dell
- Versions Affected: < 5.0.4.0.5.012 (unspecified/custom version)
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Mitigation and Prevention
Protecting systems from CVE-2020-29490 is crucial to prevent potential attacks.
Immediate Steps to Take
- Update affected Dell EMC Unity, Unity XT, and UnityVSA versions to 5.0.4.0.5.012 or later.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Dell provides patches and updates to address this vulnerability. Ensure timely installation of these updates.