CVE-2003-0944 in Database Server
Summary
by MITRE
Buffer overflow in the WAECHO default service in web-tools in SAP DB before 7.4.03.30 allows remote attackers to execute arbitrary code via a URL with a long requestURI.
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Analysis
by VulDB Data Team • 05/22/2019
The vulnerability identified as CVE-2003-0944 represents a critical buffer overflow flaw within the WAECHO default service component of SAP DB database software. This issue affects SAP DB versions prior to 7.4.03.30 and demonstrates a classic stack-based buffer overflow condition that can be exploited remotely. The vulnerability specifically manifests when processing HTTP requests containing excessively long requestURI parameters, creating an opportunity for malicious actors to gain unauthorized code execution privileges on affected systems. The WAECHO service operates as part of SAP's web tools framework, providing echo functionality for testing and debugging purposes, but this default service configuration lacks proper input validation mechanisms.
The technical exploitation of this vulnerability occurs through manipulation of the HTTP request URI parameter, where attackers can craft specially formatted URLs containing buffer overflow payloads. When the vulnerable SAP DB service processes these malformed requests, the insufficient bounds checking allows data to overwrite adjacent memory locations in the program's stack space. This memory corruption can result in arbitrary code execution with the privileges of the affected service account, potentially leading to complete system compromise. The vulnerability falls under CWE-121 stack-based buffer overflow classification, which is categorized as a fundamental programming error involving improper handling of variable-length input data. The attack vector requires only network connectivity to the affected SAP DB service, making it particularly dangerous as it can be exploited from remote locations without requiring physical access or prior authentication.
The operational impact of CVE-2003-0944 extends beyond simple code execution, as successful exploitation can provide attackers with persistent access to database systems containing potentially sensitive corporate data. Organizations running vulnerable SAP DB versions face significant risk of data breaches, system infiltration, and potential lateral movement within their network infrastructure. The default nature of the WAECHO service means that many installations may not have proper network segmentation or access controls in place, amplifying the threat landscape. From an attack perspective, this vulnerability aligns with techniques documented in the attack mitigation framework, where attackers can leverage such buffer overflow conditions to establish backdoors or escalate privileges. The vulnerability also represents a classic example of how legacy software components can harbor security flaws that persist across multiple versions without adequate patching or security updates.
Mitigation strategies for CVE-2003-0944 primarily focus on immediate software remediation through application of SAP's security patches and updates. Organizations should prioritize upgrading to SAP DB 7.4.03.30 or later versions where this vulnerability has been addressed through proper input validation and buffer management. Network-level defenses including firewall rules to restrict access to the WAECHO service and HTTP ports can provide temporary protection while patches are deployed. Additionally, implementing input validation measures at the application level and conducting regular security assessments of database environments can help identify similar vulnerabilities in other components. The vulnerability underscores the importance of maintaining current security patches and conducting regular vulnerability assessments as part of comprehensive cybersecurity programs. Organizations should also consider implementing intrusion detection systems to monitor for suspicious HTTP request patterns that might indicate exploitation attempts against similar buffer overflow vulnerabilities in their infrastructure.