CVE-2007-1827 in WebAPP
Summary
by MITRE
Multiple unspecified vulnerabilities in form input validation in web-app.org WebAPP before 0.9.9.6 allow remote authenticated users to corrupt data files, gain access to private files, and execute arbitrary code via "certain characters."
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Analysis
by VulDB Data Team • 08/28/2018
The vulnerability identified as CVE-2007-1827 represents a critical security flaw in the web-app.org WebAPP software prior to version 0.9.9.6. This issue stems from inadequate input validation mechanisms within the web application's form processing capabilities, creating a pathway for malicious actors to exploit the system through carefully crafted input sequences. The vulnerability classification aligns with CWE-20, which addresses "Improper Input Validation" as a fundamental weakness in software security design. The affected application's failure to properly sanitize user-supplied data creates multiple attack vectors that can be leveraged by authenticated remote adversaries to compromise system integrity and confidentiality.
The technical exploitation of this vulnerability occurs through the manipulation of form inputs containing specific character sequences that bypass validation checks. These malicious inputs can trigger unexpected behavior in the application's processing logic, potentially leading to data corruption, unauthorized file access, and arbitrary code execution. The vulnerability's impact is particularly severe because it affects authenticated users, meaning that an attacker must first establish legitimate credentials to exploit the flaw, but once achieved, the privileges granted can enable extensive system compromise. This characteristic places the vulnerability within the ATT&CK framework's privilege escalation and persistence domains, as the attacker can leverage the authenticated session to maintain access and expand their influence.
The operational consequences of CVE-2007-1827 extend beyond simple data corruption, as the ability to execute arbitrary code on the target system creates opportunities for complete system compromise. Attackers can potentially use this vulnerability to install backdoors, exfiltrate sensitive information, or manipulate application data to serve their malicious objectives. The fact that the vulnerability affects private file access further increases the risk profile, as it can enable attackers to read confidential data that should remain protected. Organizations using vulnerable versions of WebAPP face significant risk of data breaches and system infiltration, particularly when the application handles sensitive user information or business-critical data processing functions.
Mitigation strategies for this vulnerability require immediate remediation through the application of the official patch released by web-app.org, specifically upgrading to version 0.9.9.6 or later. Additionally, organizations should implement comprehensive input validation mechanisms at multiple layers of their application architecture to prevent similar issues from occurring in other components. Security measures including regular vulnerability assessments, web application firewalls, and input sanitization routines should be deployed to protect against analogous threats. The vulnerability serves as a reminder of the importance of proper input validation and the necessity of maintaining up-to-date security patches. Organizations should also consider implementing principle of least privilege controls and monitoring access patterns to detect potential exploitation attempts, as the vulnerability's impact is amplified when combined with other security weaknesses in the overall system architecture.