CVE-2021-26603 : Security Advisory and Response
Discover the impact of CVE-2021-26603, a heap overflow vulnerability in bandisoft's ARK library on Windows systems up to version 7.13.0.3. Learn about mitigation steps and security best practices.
A heap overflow issue was discovered in the ARK library of bandisoft Co., Ltd, specifically when the Ark_DigPathA function parsed a file path, leading to a vulnerability due to the absence of string length check.
Understanding CVE-2021-26603
This CVE details a heap overflow vulnerability in bandisoft's ARK library on Windows platforms.
What is CVE-2021-26603?
CVE-2021-26603 is a high-severity vulnerability in bandisoft's ARK library, where an attacker can exploit a heap-based buffer overflow due to improper handling of string length checks.
The Impact of CVE-2021-26603
The vulnerability allows an attacker with local access to potentially execute arbitrary code with high confidentiality, integrity, and availability impact.
Technical Details of CVE-2021-26603
The technical description, affected systems, and exploitation mechanism of CVE-2021-26603 are outlined below.
Vulnerability Description
The vulnerability arises from a heap overflow issue during parsing of file paths within the ARK library, leading to a security risk due to missing string length checks.
Affected Systems and Versions
The vulnerability affects Windows systems using ARK library versions up to and including 7.13.0.3.
Exploitation Mechanism
Attackers could exploit this vulnerability to achieve remote code execution by crafting a malicious file path to trigger the heap overflow.
Mitigation and Prevention
To address CVE-2021-26603, immediate steps, long-term security practices, and the importance of timely patching and updates are crucial.
Immediate Steps to Take
Users are advised to update the ARK library to a patched version beyond 7.13.0.3 to mitigate the risk of exploitation.
Long-Term Security Practices
Developers should enforce secure coding practices, including thorough input validation and proper buffer size checks, to prevent similar heap overflow vulnerabilities.
Patching and Updates
Regularly applying vendor-supplied patches and updates is essential to stay protected against known vulnerabilities and security threats.