CVE-2010-2006 in LetoDMS
Summary
by MITRE
Directory traversal vulnerability in op/op.Login.php in LetoDMS (formerly MyDMS) 1.7.2 and earlier allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the lang parameter.
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Analysis
by VulDB Data Team • 09/16/2025
The vulnerability identified as CVE-2010-2006 represents a critical directory traversal flaw within LetoDMS version 1.7.2 and earlier, formerly known as MyDMS. This security weakness resides in the op/op.Login.php component of the application, which processes user authentication requests. The vulnerability specifically affects the handling of the lang parameter, which is used to determine the language configuration for the user interface. Attackers can exploit this flaw by crafting malicious requests that include directory traversal sequences such as .. (dot dot) in the lang parameter value.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the application's language selection mechanism. When the system receives a request containing a crafted lang parameter with directory traversal sequences, it fails to properly validate or sanitize the input before using it to include local files. This improper handling allows an authenticated attacker to manipulate the file inclusion process and access arbitrary local files on the server. The vulnerability is particularly dangerous because it requires only authenticated access, meaning that an attacker who has obtained valid user credentials can leverage this flaw to execute arbitrary code or gain unauthorized access to sensitive system files.
From an operational perspective, this vulnerability presents significant risks to organizations using LetoDMS versions 1.7.2 or earlier. The impact extends beyond simple information disclosure, as successful exploitation could enable attackers to execute arbitrary code on the target system, potentially leading to complete system compromise. The attack requires minimal privileges since it only needs authenticated access, making it particularly concerning for environments where user accounts may be compromised through social engineering, credential theft, or other means. Additionally, the vulnerability could be exploited to access configuration files, database credentials, or other sensitive information stored on the server filesystem. The potential for privilege escalation exists if the application runs with elevated privileges, and the ability to execute arbitrary code could allow attackers to establish persistent backdoors or deploy additional malware.
The vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. This weakness is classified under the broader category of insecure direct object reference issues and is often exploited as part of the attack chain documented in the MITRE ATT&CK framework under the technique T1059 for command and scripting interpreter. Organizations should immediately implement mitigation strategies including upgrading to a patched version of LetoDMS, applying input validation controls, and implementing proper access controls to limit the impact of such vulnerabilities. Additional protective measures include disabling unnecessary file inclusion features, implementing web application firewalls, and conducting regular security assessments to identify similar vulnerabilities in other components of the system infrastructure. The vulnerability also highlights the importance of secure coding practices and input validation in preventing attackers from manipulating application behavior through crafted input parameters.