CVE-2011-4783 in IDAPython
Summary
by MITRE
The IDAPython plugin before 1.5.2.3 in IDA Pro allows user-assisted remote attackers to execute arbitrary code via a crafted IDB file, related to improper handling of certain swig_runtime_data files in the current working directory.
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Analysis
by VulDB Data Team • 02/13/2019
The vulnerability identified as CVE-2011-4783 resides within the IDAPython plugin component of IDA Pro software, specifically affecting versions prior to 1.5.2.3. This represents a critical security flaw that enables remote attackers to execute arbitrary code on systems running vulnerable versions of the software. The issue stems from improper handling of swig_runtime_data files within the current working directory, creating a dangerous attack vector that can be exploited through crafted IDB files. The vulnerability operates under the principle of privilege escalation through file manipulation, where an attacker can craft malicious IDB files that, when opened by an unsuspecting user, trigger the execution of arbitrary code on the target system.
The technical root cause of this vulnerability lies in the insecure file processing mechanism within the IDAPython plugin's handling of swig_runtime_data files. When IDA Pro processes a crafted IDB file, the plugin fails to properly validate or sanitize the swig_runtime_data elements present in the current working directory. This improper handling creates a path traversal and code execution vulnerability that allows attackers to inject malicious code into the execution flow of the application. The vulnerability aligns with CWE-22 Path Traversal and CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component, as the software does not adequately sanitize file paths or runtime data elements before processing them. The flaw operates at the intersection of file system manipulation and code execution, where the plugin's failure to properly isolate or validate external inputs creates a direct path for arbitrary code execution.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with a sophisticated means of compromising systems that use IDA Pro for software analysis and reverse engineering. Attackers can leverage this vulnerability to gain unauthorized access to systems, potentially leading to complete system compromise, data exfiltration, or further lateral movement within networks. The user-assisted nature of the attack means that victims must open a specifically crafted IDB file, but this requirement does not significantly reduce the risk as analysts frequently open files from untrusted sources during their work. This vulnerability particularly affects security professionals and reverse engineers who regularly use IDA Pro, making them prime targets for adversaries seeking to compromise their analysis environments. The attack vector can be delivered through various means including email attachments, compromised analysis environments, or malicious software repositories, making it a persistent threat in security research and development environments.
Mitigation strategies for CVE-2011-4783 should focus on immediate version updates to IDA Pro 1.5.2.3 or later, which contain the necessary patches to address the improper handling of swig_runtime_data files. Organizations should implement strict file validation procedures for all IDB files opened within IDA Pro environments, particularly those received from external sources or untrusted parties. Network segmentation and access controls should be enforced to limit the exposure of systems running IDA Pro to untrusted networks or users. Security awareness training should emphasize the dangers of opening unknown or untrusted IDB files, as the user-assisted nature of the attack requires human interaction for exploitation. Additionally, implementing sandboxing mechanisms for file analysis and using automated security scanning tools can help detect and prevent exploitation attempts. The vulnerability also highlights the importance of proper input validation and secure coding practices, aligning with ATT&CK technique T1059 Command and Scripting Interpreter, where the exploitation occurs through legitimate system tools being used in malicious ways. Organizations should also consider implementing application whitelisting policies to prevent execution of unauthorized code within their analysis environments, particularly for software that handles potentially malicious binary files.