CVE-2020-13462 in SecureChange
Summary
by MITRE • 02/09/2021
Insecure Direct Object Reference (IDOR) exists in Tufin SecureChange, affecting all versions prior to R20-2 GA. Fixed in version R20-2 GA.
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Analysis
by VulDB Data Team • 02/25/2021
The vulnerability identified as CVE-2020-13462 represents a critical Insecure Direct Object Reference flaw within Tufin SecureChange software, a network security automation platform designed to manage and control network access changes. This weakness allows unauthorized users to access sensitive data and perform actions they should not be permitted to execute by directly manipulating object references such as database keys, file paths, or internal application state variables. The issue affects all versions of Tufin SecureChange prior to the R20-2 GA release, indicating a widespread exposure across multiple deployment scenarios within enterprise network security environments where access control mechanisms have been bypassed.
The technical implementation of this vulnerability stems from insufficient authorization checks within the application's object reference handling mechanisms. When users interact with the SecureChange platform, the system should validate whether the authenticated user has proper permissions to access specific resources or perform certain operations. However, the flawed implementation allows attackers to manipulate direct object references in API calls or web requests to gain unauthorized access to data belonging to other users or system components. This type of vulnerability directly maps to CWE-284, which describes inadequate access control mechanisms, and specifically aligns with the ATT&CK technique T1078.004 related to Valid Accounts and the privilege escalation patterns that such flaws enable.
The operational impact of this vulnerability extends beyond simple data exposure, as it can lead to complete system compromise and unauthorized network access management. An attacker exploiting this IDOR vulnerability could potentially access sensitive network change requests, view confidential security policies, manipulate access controls, or even execute unauthorized network modifications that could disrupt business operations or provide backdoor access to the network infrastructure. The implications are particularly severe in enterprise environments where SecureChange is used for managing critical network security policies and access control changes, as this vulnerability could allow attackers to escalate privileges and gain administrative access to the entire security automation platform.
Organizations using affected versions of Tufin SecureChange should immediately implement the remediation provided in the R20-2 GA release, which includes enhanced authorization checks and proper validation of object references throughout the application's API endpoints and user interfaces. Additional mitigations should include implementing network segmentation to limit access to the SecureChange platform, deploying comprehensive monitoring solutions to detect anomalous access patterns, and conducting thorough security assessments to identify any potential exploitation that may have already occurred. Security teams should also review and strengthen their access control policies, implement proper logging and audit capabilities, and ensure that all user sessions are properly authenticated and authorized before granting access to sensitive network security functions. This vulnerability serves as a reminder of the critical importance of proper access control implementation and the potential consequences when such controls are insufficiently enforced in security-critical applications.