CVE-2001-1177 in ML-85P Printer Driver
Summary
by MITRE
ml85p in Samsung ML-85G GDI printer driver before 0.2.0 allows local users to overwrite arbitrary files via a symlink attack on temporary files.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 08/31/2024
The vulnerability identified as CVE-2001-1177 resides within the Samsung ML-85G GDI printer driver's ml85p component, specifically affecting versions prior to 0.2.0. This issue represents a classic symlink attack vulnerability that exploits improper handling of temporary files during the printer driver installation or operation process. The flaw enables local attackers with minimal privileges to manipulate the system by creating symbolic links that point to critical system files or directories, ultimately allowing them to overwrite arbitrary files with potentially malicious content.
The technical implementation of this vulnerability stems from the printer driver's failure to properly validate or secure temporary file creation processes. When the ml85p component processes print jobs or performs driver operations, it generates temporary files that are susceptible to symlink manipulation attacks. Attackers can exploit this weakness by pre-creating symbolic links in strategic locations where the driver expects to create temporary files, thereby redirecting the driver's file operations to overwrite files of their choice. This type of attack falls under the category of time-of-check to time-of-use race conditions and represents a fundamental flaw in temporary file handling security practices.
The operational impact of this vulnerability extends beyond simple file overwrites, as it provides attackers with a potential pathway for privilege escalation and system compromise. Local users who can execute the printer driver component gain the ability to modify critical system files, configuration files, or even executable programs, depending on the target location of the symbolic links. This capability can be leveraged to install malicious software, modify system settings, or establish persistent access mechanisms. The vulnerability is particularly concerning in enterprise environments where printer drivers are frequently installed and may have elevated privileges or access to sensitive system resources, making it a vector for broader system compromise.
Security professionals should consider this vulnerability in the context of the CWE-353 weakness category, which specifically addresses the use of insecure or unvalidated temporary files in software applications. The ATT&CK framework categorizes this type of vulnerability under privilege escalation techniques and can be classified as a local persistence mechanism. Mitigation strategies include immediate patching of affected printer driver versions to 0.2.0 or later, implementing proper file permissions and access controls, and conducting comprehensive system audits to identify any potential exploitation attempts. Additionally, organizations should establish robust temporary file handling practices, including using secure temporary file creation functions, implementing proper file validation checks, and regularly monitoring for suspicious file operations that may indicate symlink attack attempts.