CVE-2022-32995 in Halo
Summary
by MITRE • 06/28/2022
Halo CMS v1.5.3 was discovered to contain a Server-Side Request Forgery (SSRF) via the template remote download function.
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Analysis
by VulDB Data Team • 07/16/2022
The vulnerability identified as CVE-2022-32995 affects Halo CMS version 1.5.3 and represents a critical server-side request forgery flaw that can be exploited by remote attackers to manipulate server requests. This vulnerability specifically resides within the template remote download function, which is designed to allow administrators to fetch and install templates from external sources. The flaw enables malicious actors to construct requests that can bypass normal access controls and potentially access internal network resources that should otherwise remain isolated from external exposure.
The technical implementation of this SSRF vulnerability stems from inadequate input validation and sanitization within the template download mechanism. When administrators or authenticated users attempt to download templates from remote URLs, the system fails to properly validate the supplied URLs, allowing attackers to craft malicious requests that can target internal services or resources. This flaw operates under CWE-918, which specifically addresses server-side request forgery vulnerabilities where attackers can manipulate server requests to access unintended resources. The vulnerability creates a pathway for attackers to potentially access internal systems, databases, or other sensitive resources that are normally protected by network segmentation.
From an operational impact perspective, this vulnerability poses significant risks to organizations using Halo CMS v1.5.3. Attackers can leverage this flaw to perform reconnaissance activities against internal networks, potentially discovering and exploiting additional vulnerabilities within the internal infrastructure. The attack surface expands considerably as the vulnerability allows for access to internal services that may not be directly exposed to the internet, including database servers, internal APIs, or administrative interfaces. This capability can enable attackers to escalate their privileges and gain deeper access to organizational resources, making the vulnerability particularly dangerous for web applications that serve as entry points to larger network infrastructures.
The exploitation of this vulnerability aligns with techniques described in the ATT&CK framework under the T1190 attack pattern, which involves server-side request forgery to access internal systems. Security professionals should consider implementing network segmentation and access controls to limit the potential damage from such attacks. Organizations should immediately update to patched versions of Halo CMS to address this vulnerability, as the remote nature of the flaw means that unpatched systems can be exploited without requiring physical access or complex attack vectors. Additionally, implementing web application firewalls and monitoring for suspicious URL patterns can help detect and prevent exploitation attempts, though these measures should be combined with proper patch management for complete protection against this specific SSRF vulnerability.
The broader implications of this vulnerability highlight the importance of validating all user-supplied inputs, particularly when dealing with URL handling and remote resource access. The flaw demonstrates how seemingly benign functionality can become a critical security risk when proper validation mechanisms are absent. Organizations should conduct comprehensive security assessments of their web applications to identify similar vulnerabilities in other components that may be susceptible to server-side request forgery attacks, ensuring that all external resource access is properly validated and restricted to prevent unauthorized internal network access.