CVE-2003-1312 in SiteMinder
Summary
by MITRE
siteminderagent/SmMakeCookie.ccc in Netegrity SiteMinder places a session ID string in the value of the SMSESSION parameter in a URL, which might allow remote attackers to obtain the ID by sniffing, reading Referer logs, or other methods.
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Analysis
by VulDB Data Team • 07/04/2017
The vulnerability identified as CVE-2003-1312 affects the Netegrity SiteMinder web agent component known as siteminderagent/SmMakeCookie.ccc. This flaw represents a significant security weakness in session management that can be exploited by remote attackers to gain unauthorized access to user sessions. The vulnerability specifically relates to how the SiteMinder agent handles session identifiers within URL parameters, creating a potential attack vector that undermines the security of web applications protected by this authentication system.
The technical implementation of this vulnerability stems from the improper handling of session tokens within URL structures. When the SiteMinder agent generates session cookies, it embeds the session ID string directly into the value of the SMSESSION parameter within URLs. This design decision creates a fundamental security flaw because session identifiers become visible in multiple locations where network traffic is logged or transmitted. The session ID appears not only in the cookie header but also in the URL itself, making it accessible through various network monitoring and logging mechanisms that are commonly deployed in web environments.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates a pathway for attackers to perform session hijacking attacks. Network sniffers can easily capture these session identifiers from HTTP traffic, while server logs that record referer headers can inadvertently expose session tokens to unauthorized parties. This vulnerability is particularly dangerous because it affects the core session management functionality of the authentication system, potentially allowing attackers to impersonate legitimate users and gain unauthorized access to protected resources. The risk is amplified by the fact that many organizations maintain extensive logging of web traffic, including referer headers, which can contain these exposed session identifiers.
This vulnerability maps directly to CWE-200, which addresses "Information Exposure," and represents a specific instance of improper information handling within web applications. The attack pattern aligns with several techniques documented in the MITRE ATT&CK framework under the T1566 category for "Phishing" and T1559 for "Network Sniffing." The flaw essentially creates an attack surface where session tokens are exposed in transit, making it easier for adversaries to perform session hijacking operations. Organizations utilizing SiteMinder agents are particularly vulnerable because the issue lies within the core authentication infrastructure rather than application-level code, making it a systemic security concern.
The recommended mitigations for this vulnerability include implementing secure session management practices such as using secure and HttpOnly flags for session cookies, implementing proper URL rewriting to avoid session identifiers in URLs, and ensuring that session tokens are not transmitted through referer headers or other loggable locations. Organizations should also consider implementing additional authentication layers such as multi-factor authentication to provide defense in depth. Regular security audits of web applications and authentication systems should be conducted to identify similar vulnerabilities in other components of the security infrastructure. Additionally, network administrators should review logging practices to ensure that sensitive information is not being stored in accessible log files or transmitted through insecure channels. The vulnerability demonstrates the critical importance of proper session management in web security architectures and highlights the need for comprehensive security testing of authentication systems.