CVE-1999-1178 in Server
Summary
by MITRE
Sambar Server 4.1 beta allows remote attackers to obtain sensitive information about the server via an HTTP request for the dumpenv.pl script.
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Analysis
by VulDB Data Team • 10/20/2025
The vulnerability identified as CVE-1999-1178 affects Sambar Server version 4.1 beta, representing a significant security flaw that enables remote attackers to extract sensitive server information through crafted http requests. This issue stems from the server's improper handling of requests directed to the dumpenv.pl script, which is designed to provide diagnostic information about the server environment. The vulnerability classifies under information disclosure, where unauthorized parties can gain access to potentially sensitive system details that should remain protected from public view.
The technical flaw manifests when the dumpenv.pl script fails to properly validate or restrict access to its functionality, allowing any remote user to submit an http request that triggers the script's execution. This particular script typically outputs environment variables, server configuration details, and other system information that could be exploited by malicious actors to understand the underlying server architecture, installed components, and potential attack vectors. The vulnerability exists due to inadequate input sanitization and access control mechanisms within the web server's script handling capabilities, creating an entry point for information gathering activities.
The operational impact of this vulnerability extends beyond simple information disclosure, as the leaked server information can serve as a foundation for more sophisticated attacks. Attackers can use the obtained details to identify specific software versions, server configurations, and potential security weaknesses that may be exploited in subsequent phases of an attack. The exposure of environment variables and system information aligns with common attack patterns documented in the attack technique framework, where initial reconnaissance activities often involve gathering system intelligence. This vulnerability specifically relates to the attack technique of information gathering and reconnaissance, which is a fundamental step in most cyber attack campaigns.
From a compliance and security standards perspective, this vulnerability directly relates to CWE-200, which addresses information exposure, and aligns with the broader category of insecure configuration practices that affect web server security. The issue demonstrates poor access control implementation and inadequate security hardening of web applications, which are fundamental requirements in security frameworks such as the OWASP Top Ten and NIST cybersecurity guidelines. Organizations running vulnerable versions of Sambar Server face potential risks including system compromise, data breaches, and unauthorized access to sensitive resources. The vulnerability's remote exploitability means that attackers do not require physical access or local credentials to leverage the flaw, making it particularly dangerous in networked environments.
Mitigation strategies for this vulnerability involve immediate patching of the Sambar Server software to the latest available version that addresses the access control issue in the dumpenv.pl script. System administrators should also implement network-level restrictions to prevent unauthorized access to potentially vulnerable scripts and applications. Additional security measures include configuring proper access controls, implementing web application firewalls, and conducting regular security assessments to identify similar vulnerabilities in other server components. The remediation approach should follow established security practices for addressing information disclosure vulnerabilities, including the principle of least privilege and proper input validation to prevent unauthorized access to system information.