CVE-2022-34286 in PADS Standard
Summary
by MITRE • 07/12/2022
A vulnerability has been identified in PADS Standard/Plus Viewer (All versions). The affected application contains an out of bounds write past the end of an allocated structure while parsing specially crafted PCB files. This could allow an attacker to execute code in the context of the current process. (FG-VD-22-051)
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Analysis
by VulDB Data Team • 07/21/2022
The vulnerability CVE-2022-34286 affects PADS Standard/Plus Viewer, a popular PCB (Printed Circuit Board) design and viewing application used extensively in electronics engineering and manufacturing environments. This vulnerability represents a critical security flaw that could enable remote code execution when victims open maliciously crafted PCB files. The affected software operates within the electronics design automation domain where engineers and designers frequently handle sensitive intellectual property and proprietary circuit designs, making this vulnerability particularly concerning for organizations in the technology and manufacturing sectors.
The technical flaw manifests as an out-of-bounds write condition that occurs during the parsing of specially crafted PCB files within the PADS Viewer application. When the software processes malformed input data structures, it fails to properly validate array boundaries or memory allocation limits, resulting in memory corruption that extends beyond the intended allocated buffer space. This type of vulnerability falls under CWE-787 Out-of-bounds Write, which is classified as a memory safety issue that can lead to arbitrary code execution. The vulnerability stems from inadequate input validation and bounds checking mechanisms within the PCB file parsing logic, specifically when handling complex data structures such as layer definitions, component placements, or netlist information that may contain maliciously constructed values.
The operational impact of this vulnerability is severe and potentially catastrophic for affected organizations. An attacker could craft a malicious PCB file that, when opened by an unsuspecting user, would trigger the out-of-bounds write condition and subsequently execute arbitrary code with the privileges of the current user process. This could result in complete system compromise, data exfiltration, or deployment of additional malware. The attack vector is particularly dangerous because it requires minimal user interaction beyond opening a file, making it susceptible to social engineering campaigns where victims might receive seemingly legitimate PCB design files through email attachments or shared network drives. Organizations relying on PADS Viewer for sensitive design work face significant risk exposure, especially in environments where security controls may be less stringent or where users have elevated privileges.
Mitigation strategies for CVE-2022-34286 should include immediate deployment of vendor-provided patches or updates to address the memory corruption vulnerability. Organizations should implement strict file validation procedures, including sandboxing of PCB file processing, network segmentation to limit access to design environments, and user education about the risks of opening untrusted files. Security teams should consider implementing network-based intrusion detection systems to monitor for suspicious file access patterns and establish incident response protocols specifically addressing this vulnerability. Additionally, organizations should conduct comprehensive vulnerability assessments to identify all systems running affected versions of PADS Viewer and ensure that proper access controls are in place to prevent unauthorized file execution. The vulnerability also highlights the importance of applying security patches promptly and maintaining updated threat intelligence feeds to stay informed about similar vulnerabilities in other design and engineering software applications that may be susceptible to similar memory safety issues.