CVE-2020-29494 : Exploit Details and Defense Strategies

Dell EMC Avamar Server, versions 19.1, 19.2, 19.3, contain a Path Traversal Vulnerability that could allow a remote user to gain unauthorized access to arbitrary files and potentially delete them.

Understanding CVE-2020-29494

This CVE involves a Path Traversal Vulnerability in Dell EMC Avamar Server versions 19.1, 19.2, 19.3.

What is CVE-2020-29494?

The vulnerability allows remote attackers to gain unauthorized write access to files on the server filesystem, leading to potential deletion of arbitrary files.

The Impact of CVE-2020-29494

CVSS Base Score: 8.7 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: High
Integrity Impact: High
Availability Impact: High
Scope: Changed
Vulnerability Type: Path Traversal (CWE-22)

Technical Details of CVE-2020-29494

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The Path Traversal Vulnerability in Dell EMC Avamar Server versions 19.1, 19.2, 19.3 allows remote users to manipulate file paths and access unauthorized files.

Affected Systems and Versions

Affected Product: Avamar
Vendor: Dell
Affected Versions: HF 19.1, 19.2, 19.3
Version Type: Custom

Exploitation Mechanism

Attackers can exploit this vulnerability remotely to gain unauthorized access to sensitive files on the server and potentially delete them.

Mitigation and Prevention

To address CVE-2020-29494, follow these mitigation steps:

Immediate Steps to Take

Apply the security update provided by Dell.
Monitor and restrict network access to the affected server.
Implement strong access controls and authentication mechanisms.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Conduct security assessments and penetration testing.
Educate users on secure practices and awareness.

Patching and Updates

Dell has released a security update to address this vulnerability. Ensure timely installation of the update to secure the system.