CVE-2011-0469 in openSUSE
Summary
by MITRE
Code injection in openSUSE when running some source services used in the open build service 2.1 before March 11 2011.
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Analysis
by VulDB Data Team • 12/16/2022
The vulnerability identified as CVE-2011-0469 represents a critical code injection flaw discovered in openSUSE systems running the open build service version 2.1 prior to March 11 2011. This vulnerability specifically affects the source services component of the open build service infrastructure, which is designed to facilitate automated software compilation and packaging processes for the openSUSE distribution. The open build service serves as a crucial backend system for managing software builds and maintaining the openSUSE software repositories, making this vulnerability particularly concerning for the broader openSUSE ecosystem and its users.
The technical flaw manifests in the improper handling of user-supplied input within the source services functionality of the open build service. Attackers could exploit this weakness by crafting malicious input that gets executed as code within the build environment, effectively allowing arbitrary code execution on systems running vulnerable versions of the open build service. This type of vulnerability falls under the CWE-94 category of "Improper Control of Generation of Code" and is classified as a code injection vulnerability according to the Common Weakness Enumeration framework. The vulnerability stems from insufficient sanitization and validation of input parameters that are processed by the source services, creating an environment where malicious code can be injected and subsequently executed during the build process.
The operational impact of this vulnerability extends beyond individual system compromise to potentially affect the entire openSUSE software distribution infrastructure. Since the open build service is responsible for compiling and packaging software for distribution, an attacker who successfully exploits this vulnerability could inject malicious code into the build process, potentially compromising thousands of downstream users who rely on the openSUSE repositories. This creates a supply chain security risk where malicious code could be silently introduced into legitimate software packages, making detection extremely difficult. The vulnerability also aligns with ATT&CK technique T1059.007 for "Command and Scripting Interpreter: Python" as the exploitation likely involves Python-based scripting components within the build service environment, and T1505.003 for "Server Software Component: Web Shell" as the malicious code execution could establish persistent access points within the build infrastructure.
Mitigation strategies for CVE-2011-0469 primarily involve updating to patched versions of the open build service software released after March 11 2011, which would include proper input validation and sanitization measures to prevent code injection attacks. System administrators should also implement strict access controls and monitoring of the build service environment to detect anomalous build activities that might indicate exploitation attempts. Additional protective measures include implementing network segmentation to isolate the build service infrastructure, regular security auditing of build processes, and maintaining comprehensive backup systems to quickly recover from potential compromise. Organizations should also consider implementing automated code review processes and static analysis tools to identify similar vulnerabilities in other components of their software supply chain. The vulnerability highlights the importance of secure coding practices and input validation in distributed build systems, emphasizing the need for robust security controls in infrastructure that handles automated software compilation processes.