CVE-2013-4094 in SecureSphere
Summary
by MITRE
The Key Management feature in the SecureSphere Operations Manager (SOM) Management Server in Imperva SecureSphere 9.0.0.5 allows remote authenticated users to upload executable files via the (1) private_key or (2) public_key parameter in a T/keyManagement request to plain/settings.html, as demonstrated by uploading a Linux ELF file and a shell script.
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Analysis
by VulDB Data Team • 11/04/2024
The vulnerability identified as CVE-2013-4094 resides within the SecureSphere Operations Manager Management Server component of Imperva SecureSphere version 9.0.0.5, representing a critical security flaw in the system's key management functionality. This issue affects the secure handling of cryptographic keys within the management interface, creating a pathway for remote authenticated attackers to escalate their privileges and potentially compromise the entire system. The vulnerability specifically targets the T/keyManagement endpoint accessible through the plain/settings.html interface, where the system fails to properly validate file uploads for cryptographic key parameters.
The technical exploitation of this vulnerability occurs through the manipulation of two distinct parameters within the key management request structure: private_key and public_key. When authenticated users submit requests to the T/keyManagement endpoint, the system does not adequately validate the file types being uploaded, allowing attackers to bypass normal security controls and upload malicious executable files. This flaw enables the upload of Linux ELF binaries and shell scripts, which can then be executed within the context of the management server, potentially granting attackers full control over the system's cryptographic operations and underlying infrastructure.
The operational impact of this vulnerability extends far beyond simple file upload capabilities, as it creates a persistent backdoor within the SecureSphere management environment. Attackers who successfully exploit this vulnerability can execute arbitrary code on the management server, potentially leading to complete system compromise, data exfiltration, and the ability to manipulate cryptographic keys used for securing network communications. This represents a significant threat to the integrity of the entire security infrastructure, as the management server serves as a critical control point for the entire SecureSphere deployment.
From a cybersecurity framework perspective, this vulnerability aligns with CWE-434, which describes the insecure upload of executable code, and demonstrates characteristics consistent with ATT&CK technique T1190, related to exploitation of remote services. The vulnerability also reflects poor input validation and inadequate access controls within the web application interface. Organizations utilizing Imperva SecureSphere 9.0.0.5 should immediately implement mitigations including disabling unnecessary file upload functionality, implementing strict file type validation, and applying proper access controls to prevent unauthorized users from accessing the management interface. Additionally, network segmentation and monitoring of the management server should be enhanced to detect potential exploitation attempts and maintain visibility into suspicious file upload activities within the system.