CVE-2003-1036 in Internet Transaction Server
Summary
by MITRE
Multiple buffer overflows in the AGate component for SAP Internet Transaction Server (ITS) allow remote attackers to execute arbitrary code via long (1) ~command, (2) ~runtimemode, or (3) ~session parameters, or (4) a long HTTP Content-Type header.
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Analysis
by VulDB Data Team • 07/06/2017
The vulnerability identified as CVE-2003-1036 represents a critical security flaw within the AGate component of SAP Internet Transaction Server ITS, a web application server that facilitates business transactions and data processing. This vulnerability manifests through multiple buffer overflow conditions that can be exploited by remote attackers to gain unauthorized code execution privileges. The affected parameters include the ~command, ~runtimemode, ~session, and HTTP Content-Type headers, all of which are critical components in the server's request processing pipeline. These buffer overflows occur when the system fails to properly validate input lengths, allowing malicious actors to craft specially crafted requests that exceed the allocated memory buffers, thereby corrupting adjacent memory regions and potentially enabling arbitrary code execution.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the AGate component's parsing routines. When processing incoming requests containing the vulnerable parameters, the system allocates fixed-size buffers to store parameter values without sufficient bounds checking. The CWE-121 category applies here as the vulnerability involves stack-based buffer overflow conditions where attacker-controlled data is copied into insufficiently sized buffers. The attack vector requires remote network access and can be executed through HTTP requests that contain maliciously crafted parameter values or Content-Type headers exceeding predefined buffer limits. This allows attackers to overwrite return addresses, function pointers, or other critical memory segments, potentially leading to complete system compromise and unauthorized access to sensitive business data.
The operational impact of CVE-2003-1036 extends beyond simple code execution, as it provides attackers with a pathway to escalate privileges and persist within affected SAP environments. Organizations running SAP ITS systems are particularly vulnerable since these servers typically process sensitive business transactions and contain valuable corporate data. The vulnerability can be exploited to gain unauthorized access to financial records, customer information, and proprietary business data, while also potentially allowing attackers to establish backdoors or maintain persistent access to the compromised systems. From an ATT&CK framework perspective, this vulnerability maps to techniques involving command and control communications, privilege escalation, and persistence mechanisms, as attackers can leverage the code execution capability to deploy additional malicious tools or establish covert channels for ongoing access.
Mitigation strategies for this vulnerability require immediate implementation of SAP security patches and updates that address the specific buffer overflow conditions in the AGate component. Organizations should implement network segmentation to limit access to SAP ITS servers and deploy intrusion detection systems to monitor for suspicious parameter values or Content-Type headers. Input validation should be strengthened at multiple layers including application-level filtering, web application firewalls, and network-level controls to prevent malicious payloads from reaching vulnerable components. Security monitoring should focus on detecting unusual parameter lengths in HTTP requests, particularly those targeting the ~command, ~runtimemode, ~session, and Content-Type parameters. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar issues in other SAP components or third-party applications that may be susceptible to similar buffer overflow exploitation techniques.