CVE-2018-5196 Explained : Impact and Mitigation

Alzip version 10.76.0.0 and earlier is susceptible to a stack overflow due to inadequate bounds checking, allowing attackers to execute arbitrary code by manipulating LZH archive files.

Understanding CVE-2018-5196

This CVE involves a vulnerability in Alzip that can be exploited through a specially-crafted LZH archive file, potentially leading to arbitrary code execution.

What is CVE-2018-5196?

The CVE-2018-5196 vulnerability in Alzip arises from a lack of proper bounds checking, resulting in a stack overflow. Attackers can leverage this flaw by enticing users to open malicious LZH archive files.

The Impact of CVE-2018-5196

The vulnerability has a CVSS base score of 8.8, indicating a high severity level. Its impact includes high confidentiality, integrity, and availability risks, with no privileges required for exploitation.

Technical Details of CVE-2018-5196

Alzip's vulnerability details, affected systems, and exploitation methods.

Vulnerability Description

Type: Stack-based overflow
Cause: Inadequate bounds checking
Exploitation: Tricking users into opening crafted LZH archive files

Affected Systems and Versions

Product: Alzip
Vendor: Estsoft
Versions affected: <= 10.76.0.0
Platforms: x86, x64

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
User Interaction: Required
Scope: Unchanged
Privileges Required: None

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2018-5196 vulnerability.

Immediate Steps to Take

Update Alzip to version 10.81 or higher

Long-Term Security Practices

Exercise caution when opening archive files
Implement security best practices to prevent arbitrary code execution

Patching and Updates

Regularly update Alzip software to versions beyond 10.81 to eliminate the vulnerability