CVE-2005-2041 in Virobot Linux Server
Summary
by MITRE
Buffer overflow in addschup in HAURI ViRobot 2.0, and possibly other products, allows remote attackers to execute arbitrary code via a long ViRobot_ID cookie (HTTP_COOKIE).
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Analysis
by VulDB Data Team • 01/15/2025
The vulnerability identified as CVE-2005-2041 represents a critical buffer overflow flaw within the HAURI ViRobot 2.0 web application framework that affects the addschup component. This issue manifests when the application processes HTTP_COOKIE headers containing an excessively long ViRobot_ID parameter, creating a condition where memory boundaries are exceeded during data handling operations. The flaw exists in the cookie processing logic where input validation is insufficient to prevent maliciously crafted cookie values from overflowing allocated buffer space.
The technical implementation of this vulnerability stems from improper bounds checking within the ViRobot_ID cookie handling mechanism. When a remote attacker submits a specially crafted HTTP_COOKIE containing an overly long ViRobot_ID value, the application fails to validate the input length before copying it into a fixed-size buffer. This classic buffer overflow condition allows attackers to overwrite adjacent memory locations, potentially corrupting program execution flow and enabling arbitrary code execution. The vulnerability operates at the application layer and requires no authentication for exploitation, making it particularly dangerous in networked environments.
From an operational impact perspective, this vulnerability presents a severe threat to systems running HAURI ViRobot 2.0 as it allows remote code execution without requiring prior access credentials. Attackers can leverage this flaw to gain complete control over affected systems, potentially leading to data breaches, system compromise, and further lateral movement within network infrastructures. The vulnerability affects not only HAURI ViRobot 2.0 but may also extend to other products utilizing similar code structures, suggesting a broader potential impact across related software ecosystems. Organizations using this software face significant risk of unauthorized access and potential system takeovers.
Security mitigations for CVE-2005-2041 should focus on immediate input validation and bounds checking implementations. The primary defense mechanism involves implementing proper length validation for cookie parameters before processing, ensuring that all input values conform to predetermined size limitations. Additionally, implementing stack protection mechanisms, address space layout randomization, and input sanitization routines can significantly reduce exploitability. Organizations should also consider applying patches or updates provided by HAURI, implementing network segmentation to limit exposure, and monitoring for suspicious cookie values in web server logs. This vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and maps to ATT&CK technique T1059 for remote code execution through web application vulnerabilities.