CVE-2016-8333 in Argus
Summary
by MITRE
An exploitable stack-based buffer overflow vulnerability exists in the ipfSetColourStroke functionality of Iceni Argus version 6.6.04 A specially crafted pdf file can cause a buffer overflow resulting in arbitrary code execution. An attacker can provide a malicious pdf file to trigger this vulnerability.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 09/28/2022
The CVE-2016-8333 vulnerability represents a critical stack-based buffer overflow flaw within the ipfSetColourStroke functionality of Iceni Argus version 6.6.04. This vulnerability falls under the CWE-121 stack-based buffer overflow category, where insufficient bounds checking allows an attacker to overwrite adjacent stack memory locations. The flaw specifically manifests when processing specially crafted pdf files that contain maliciously constructed color stroke data within their graphics objects. The vulnerability exists due to inadequate input validation and memory management practices within the pdf rendering engine of the application.
The technical exploitation of this vulnerability occurs through the manipulation of pdf file structures that trigger the ipfSetColourStroke function. When the application processes a malicious pdf containing oversized or malformed color stroke parameters, the buffer overflow condition is triggered as the application attempts to copy data into a fixed-size stack buffer without proper boundary checks. This allows an attacker to overwrite return addresses and control registers, potentially enabling arbitrary code execution with the privileges of the affected application. The attack vector requires user interaction through the opening of a malicious pdf file, making it particularly dangerous in phishing scenarios.
The operational impact of CVE-2016-8333 extends beyond simple code execution to encompass complete system compromise potential. Attackers can leverage this vulnerability to escalate privileges, install backdoors, or establish persistent access to compromised systems. The vulnerability affects organizations using Iceni Argus 6.6.04 for pdf processing, particularly those in financial services, legal sectors, or any environment where pdf document handling is critical. According to ATT&CK framework, this vulnerability maps to T1059.007 for command and scripting interpreter and T1068 for exploit for privilege escalation. The vulnerability is particularly concerning as it operates at the application level without requiring elevated system privileges, making it an attractive target for initial access and lateral movement within network environments.
Mitigation strategies for CVE-2016-8333 should focus on immediate patch management and application hardening. Organizations must upgrade to Iceni Argus versions that address this vulnerability, as the vendor has released patches to correct the buffer overflow condition. Additionally, implementing pdf file validation controls, sandboxing pdf processing applications, and employing strict input validation measures can significantly reduce the attack surface. Network-level controls such as pdf file filtering and content inspection systems should be deployed to prevent malicious pdf files from reaching end users. Security monitoring should include detection of suspicious pdf processing activities and anomalous behavior patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of proper memory management practices and input validation in preventing exploitation of buffer overflow conditions in pdf rendering engines.