CVE-2008-2003 in BadBlue
Summary
by MITRE
BadBlue 2.72 Personal Edition stores multiple programs in the web document root with insufficient access control, which allows remote attackers to (1) cause a denial of service via multiple invocations of uninst.exe, and have an unknown impact via (2) badblue.exe and (3) dyndns.exe. NOTE: this can be leveraged for arbitrary remote code execution in conjunction with CVE-2007-6378.
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Analysis
by VulDB Data Team • 09/23/2018
The vulnerability described in CVE-2008-2003 affects BadBlue 2.72 Personal Edition, a web server software that was widely used for file sharing and web hosting purposes. This particular vulnerability stems from poor security design decisions in how the software manages its installation and execution components within the web document root directory. The flaw represents a critical access control failure that fundamentally undermines the security boundaries of the application, creating multiple attack vectors that can be exploited by remote adversaries without authentication.
The technical implementation of this vulnerability involves the insecure placement of multiple executable programs directly within the web-accessible document root directory. Specifically, the uninst.exe, badblue.exe, and dyndns.exe programs are stored in locations where they can be accessed and executed remotely through HTTP requests. This design flaw violates fundamental security principles of least privilege and proper application isolation, as these executables are not properly protected from unauthorized access. The uninst.exe component can be invoked repeatedly to cause denial of service conditions, while the other executables can potentially be leveraged for more severe impacts including arbitrary code execution.
The operational impact of this vulnerability extends beyond simple denial of service scenarios and can lead to complete system compromise when combined with other exploits. The presence of multiple attack vectors increases the attack surface significantly, as each executable presents different potential exploitation paths. When combined with CVE-2007-6378, which likely involves a separate code execution vulnerability, attackers can achieve arbitrary remote code execution capabilities. This combination represents a particularly dangerous scenario that can lead to full system compromise, data exfiltration, and persistent access to affected systems. The vulnerability affects systems where BadBlue 2.72 Personal Edition is installed and accessible over the network, making it a significant concern for organizations that have not properly secured or removed this software.
Security practitioners should treat this vulnerability as a high-priority issue requiring immediate remediation. The recommended mitigation strategies include removing the vulnerable BadBlue software entirely from affected systems, implementing proper network segmentation to prevent unauthorized access to web server directories, and ensuring that all web-accessible content is properly protected with appropriate access controls. This vulnerability aligns with CWE-276, which describes improper file permissions, and can be mapped to ATT&CK techniques involving privilege escalation and remote code execution through web application vulnerabilities. Organizations should also implement regular vulnerability assessments to identify similar insecure configurations in other web server software and ensure that all applications are properly secured against unauthorized access through their web interfaces.