CVE-2024-12014

Vulnerability

Overview CVE-2024-12014 is a path traversal and Insecure Direct Object Reference (IDOR) vulnerability in the eSignaViewer component of eSigna product versions 1.0 to 1.5. The root cause is improper implementation of security controls, allowing attackers to manipulate file paths and object identifiers such as document IDs [1].

Exploitation

An unauthenticated attacker can exploit this flaw by crafting malicious file paths to traverse directories and access restricted files, or by modifying object references to bypass authorization checks. The attack requires network access to the eSignaViewer component; no authentication is needed [1].

Impact

Successful exploitation can lead to unauthorized access to sensitive files, potentially resulting in data exposure and regulatory violations. However, the advisory notes that the overall impact is considered low [1].

Mitigation

Lleidanet PKI SL has released patched versions of eSignaViewer that implement stronger input validation and authorization controls. Users are advised to upgrade to the latest version and adopt complementary measures such as logging suspicious activities and performing regular security audits [1].