CVE-2001-0152 in Plus!
Summary
by MITRE
The password protection option for the Compressed Folders feature in Plus! for Windows 98 and Windows Me writes password information to a file, which allows local users to recover the passwords and read the compressed folders.
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Analysis
by VulDB Data Team • 05/21/2019
The vulnerability described in CVE-2001-0152 represents a critical security flaw in the Compressed Folders feature of Plus! for Windows 98 and Windows Me operating systems. This issue stems from the insecure handling of password protection mechanisms within the compressed folder functionality, creating a significant attack surface for local adversaries who can exploit the weakness to gain unauthorized access to protected data. The vulnerability specifically affects systems running Windows 98 and Windows Me, which were prevalent operating systems during the early 2000s but are now legacy systems with limited support and security updates.
The technical implementation of this flaw involves the Compressed Folders feature storing password information in plain text format within configuration files on the local filesystem. When users enable password protection for compressed folders through the Plus! application, the system fails to properly encrypt or obfuscate the password data, instead writing it directly to a file that remains accessible to local users with appropriate file system permissions. This design decision violates fundamental security principles of credential storage and creates an immediate privilege escalation vector for attackers who can simply navigate to the relevant file location and extract the stored passwords. The vulnerability manifests as a direct compromise of the authentication mechanism, allowing unauthorized access to encrypted content without requiring additional attack vectors or complex exploitation techniques.
The operational impact of this vulnerability extends beyond simple unauthorized access to compressed files, as it demonstrates a fundamental flaw in how legacy applications handle sensitive data protection. Local users who can access the filesystem can immediately recover the stored passwords and subsequently access all compressed folders protected with those credentials, potentially exposing sensitive business data, personal information, or proprietary files. This weakness undermines the entire purpose of password protection within the Compressed Folders feature and represents a classic example of poor security implementation in legacy software. The vulnerability is particularly concerning because it affects widely deployed operating systems from the late 1990s, where users may not have been aware of the security implications or have access to updated versions of the software.
Organizations and individuals using affected systems should implement immediate mitigations to address this vulnerability, including disabling the Compressed Folders feature when not required, implementing strict file system access controls to limit who can read the password storage files, and migrating to more secure modern alternatives. The vulnerability aligns with CWE-312 (Cleartext Storage of Sensitive Information) and represents a clear violation of security best practices established in industry standards. From an attacker perspective, this vulnerability maps to techniques described in the ATT&CK framework under credential access and privilege escalation tactics, specifically targeting the exploitation of weak credential storage mechanisms. The lack of proper encryption or hashing of stored passwords creates a persistent security weakness that requires fundamental architectural changes to address properly, rather than simple patching approaches that would be insufficient for legacy systems.