CVE-2001-1010 in Sambar Server
Summary
by MITRE
Directory traversal vulnerability in pagecount CGI script in Sambar Server before 5.0 beta 5 allows remote attackers to overwrite arbitrary files via a .. (dot dot) attack on the page parameter.
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Analysis
by VulDB Data Team • 09/30/2025
The CVE-2001-1010 vulnerability represents a critical directory traversal flaw discovered in the pagecount CGI script of Sambar Server versions prior to 5.0 beta 5. This vulnerability resides within the web server's handling of user-supplied input through the page parameter, creating a pathway for remote attackers to manipulate file system access patterns. The issue stems from inadequate input validation and sanitization mechanisms that fail to properly restrict directory navigation sequences, allowing malicious actors to traverse the file system beyond intended boundaries.
The technical exploitation of this vulnerability occurs through the manipulation of the page parameter in the CGI script, where attackers can inject sequences of dot-dot characters to navigate upward through directory structures. When the pagecount script processes these unvalidated inputs, it fails to implement proper path validation checks that would prevent traversal beyond the designated web root or application directories. This allows attackers to specify arbitrary file paths that can result in overwriting critical system files, reading sensitive data, or executing unauthorized operations within the file system. The vulnerability specifically affects the pagecount CGI component, which is commonly used for tracking page views and web statistics, making it a frequent target for exploitation.
The operational impact of this vulnerability extends beyond simple file access manipulation to encompass potential system compromise and data integrity breaches. Remote attackers who successfully exploit this vulnerability can overwrite critical system files, modify configuration settings, or inject malicious content into the web server environment. The ability to overwrite arbitrary files creates opportunities for persistent access, privilege escalation, or complete system takeover depending on the permissions of the web server process. This type of vulnerability directly violates security principles related to input validation and access control, as it allows unauthorized file system manipulation through web-based interfaces.
Security practitioners should note that this vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. The ATT&CK framework categorizes this as a privilege escalation technique under the 'Path Traversal' tactic, where adversaries leverage application vulnerabilities to access files and directories outside of their intended scope. Organizations should implement immediate mitigations including upgrading to Sambar Server 5.0 beta 5 or later versions, implementing proper input validation for all CGI parameters, and restricting file system permissions for web server processes. Additionally, network segmentation and web application firewalls can provide additional layers of protection against exploitation attempts targeting such vulnerabilities. The vulnerability demonstrates the critical importance of validating all user inputs and implementing proper access controls to prevent unauthorized system manipulation through web interfaces.