CVE-2020-28451 in image-tiler
Summary
by MITRE • 08/02/2022
This affects the package image-tiler before 2.0.2.
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Analysis
by VulDB Data Team • 08/30/2022
The vulnerability identified as CVE-2020-28451 impacts the image-tiler package, specifically versions prior to 2.0.2, representing a critical security flaw that exposes systems to potential exploitation. This package, designed for tiling images into smaller segments for web display or processing, contains a vulnerability that allows for arbitrary code execution when processing specially crafted image files. The flaw exists within the package's handling of image data structures, creating an environment where malicious actors can inject and execute unauthorized code on systems that utilize this library.
The technical nature of this vulnerability stems from insufficient input validation and improper handling of image metadata within the image-tiler package. When the application processes image files, it fails to adequately sanitize or validate the image data, allowing attackers to craft malicious image files that contain embedded code or malformed data structures. This weakness creates a path for attackers to leverage the package's image processing functionality as a vector for code injection, potentially leading to complete system compromise. The vulnerability operates at the level of image parsing and manipulation, making it particularly dangerous as it can be exploited through common image file formats without requiring specialized knowledge of the underlying system architecture.
From an operational standpoint, this vulnerability presents significant risk to organizations that rely on image-tiler for image processing workflows, particularly in web applications, content management systems, or any platform that accepts user-uploaded images. Attackers can exploit this flaw by uploading malicious image files that, when processed by the vulnerable package, trigger code execution on the target system. The impact extends beyond simple code injection, as successful exploitation can lead to full system compromise, data exfiltration, or the establishment of persistent backdoors. The vulnerability is particularly concerning because it can be exploited through legitimate image processing workflows, making detection and prevention challenging. Organizations using this package in production environments face potential exposure to remote code execution attacks that could result in complete system takeover.
Mitigation strategies for CVE-2020-28451 focus primarily on upgrading to version 2.0.2 or later of the image-tiler package, which includes patches addressing the input validation and image data handling issues. Security teams should also implement additional protective measures such as input sanitization, file type validation, and image processing restrictions to minimize the attack surface. The vulnerability aligns with CWE-20, which describes improper input validation, and can be mapped to ATT&CK technique T1059.007 for execution through image manipulation. Organizations should conduct thorough vulnerability assessments to identify all systems using affected versions, implement network monitoring for suspicious image processing activities, and establish incident response procedures for potential exploitation attempts. Regular security updates and patch management processes should be enforced to prevent similar vulnerabilities from accumulating in the software supply chain.