This vulnerability allows ImgProxy to expose services on the local host due to its failure to block the 0.0.0.0 address, even when the IMGPROXY_ALLOW_LOOPBACK_SOURCE_ADDRESSES setting is false. ImgProxy is a server for resizing, processing, and converting images, and this flaw poses a real risk to organizations utilizing this service.
With a CVSS score of 5.3, classified as medium severity, the vulnerability can be exploited over a network with low attack complexity and does not require any privileges or user interaction. Organizations need to recognize the potential risks associated with this vulnerability to safeguard their assets.
The vulnerability was disclosed on January 27, 2025, and it is fixed in version 3.27.2. Organizations using ImgProxy should prioritize patching, as the exploit can lead to unauthorized access to sensitive services on the local host.
Organizations should address this vulnerability in their patch cycle to prevent potential exploitation. Immediate action is necessary to mitigate the risk associated with this flaw.
Vulnerability Details
ImgProxy does not properly handle network address restrictions, allowing access to the local services through the 0.0.0.0 address. This misconfiguration can expose services to unauthorized access. The vulnerability is classified under CWE-918, which pertains to the exposure of sensitive information due to improper handling of network addresses.
The CVSS vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating a low complexity attack that can be executed without any privileges or user interaction.
The vulnerability was published on January 27, 2025, and it is deferred in status. Organizations should monitor updates related to this CVE to assess the urgency of remediation.
Technical Analysis
The root cause of this vulnerability is the improper configuration of ImgProxy, which fails to block the 0.0.0.0 address effectively. This oversight allows attackers to access local services that should ideally be restricted.
The attack vector is network-based, and with low attack complexity, malicious actors can exploit this vulnerability without needing elevated privileges or user interaction.
The impact on confidentiality is low, as the exploit does not affect the integrity or availability of services. However, unauthorized access to sensitive information can still pose significant risks to organizations.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to local services that could lead to data leakage or further exploitation of the network. The blast radius potential is significant, as multiple services may be exposed inadvertently.
Given the medium severity of this vulnerability and its potential impact, organizations should prioritize addressing it in their patch cycle. It is essential to assess the current deployment of ImgProxy and ensure all instances are updated to the latest version.
The urgency of remediation should be classified as medium, given that while the exploit complexity is low, the actual risk exposure depends on the specific services deployed and their configurations.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects ImgProxy versions prior to 3.27.2. Organizations should ensure they have updated to this version or later to mitigate the risk.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade ImgProxy to version 3.27.2 or later. Organizations unable to upgrade immediately should consider implementing network controls to limit exposure to the 0.0.0.0 address.
For continuous improvement of security posture, organizations may also engage in penetration testing to identify unpatched vulnerabilities and weaknesses in their systems.
Detection Guidance
Organizations should monitor logs for any unusual access patterns or attempts to reach the 0.0.0.0 address. Key indicators include unexpected connections to local services and unauthorized access to image processing functionality.
AppSecure Threat Intelligence Insight
This vulnerability highlights the importance of proper network configuration and access controls within applications. Security teams should ensure that all services deployed are adequately protected against unauthorized access, especially in cloud environments.
To learn more about securing your application environment, review our security testing best practices and consider our penetration testing methodology to enhance your security measures.
Finally, organizations should also review their vulnerability management program to ensure they effectively prioritize and remediate vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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