CVE-2020-12508 in moni::tools
Summary
by MITRE • 11/16/2022
In s::can moni::tools in versions below 4.2 an unauthenticated attacker could get any file from the device by path traversal in the image-relocator module.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 11/16/2022
The vulnerability identified as CVE-2020-12508 affects s::can moni::tools software versions prior to 4.2, representing a critical path traversal flaw within the image-relocator module. This security weakness enables unauthenticated attackers to access arbitrary files from the affected device by exploiting insufficient input validation mechanisms. The vulnerability stems from the software's failure to properly sanitize file paths provided during image relocation operations, creating an opportunity for malicious actors to navigate the filesystem beyond intended boundaries.
The technical implementation of this flaw resides in the image-relocator module's handling of file path parameters, where user-supplied input is directly incorporated into filesystem operations without adequate sanitization or validation. This allows attackers to manipulate path traversal sequences such as ../ or ..\ to access files outside the intended directory structure. The vulnerability specifically affects systems where the software operates with elevated privileges, potentially exposing sensitive configuration files, system binaries, or other critical resources stored on the device. The lack of authentication requirements means that any remote attacker with network access can exploit this weakness without requiring valid credentials.
The operational impact of this vulnerability extends beyond simple information disclosure, as successful exploitation could lead to complete system compromise. Attackers could potentially access system configuration files that contain sensitive information, retrieve system binaries for analysis, or even access log files containing authentication credentials or other valuable data. The vulnerability affects the confidentiality and integrity of the affected systems, as unauthorized parties can gain access to resources that should remain protected. Additionally, the ability to retrieve arbitrary files may enable attackers to perform reconnaissance activities or gather intelligence for subsequent attacks.
Security professionals should implement immediate mitigations including upgrading to s::can moni::tools version 4.2 or later, which contains the necessary patch to address the path traversal vulnerability. Organizations should also consider implementing network segmentation and access controls to limit exposure of affected systems to untrusted networks. The vulnerability aligns with CWE-22 Path Traversal and follows patterns consistent with ATT&CK technique T1083 File and Directory Discovery, where adversaries seek to enumerate and access sensitive files on compromised systems. Regular security assessments and input validation reviews should be conducted to prevent similar vulnerabilities in other components of the system architecture.