CVE-1999-1248 in HP-UX
Summary
by MITRE
vulnerability in support watch (aka supportwatch) in hp-ux 8.0 through 9.0 allows local users to gain privileges.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 04/03/2025
The vulnerability described in CVE-1999-1248 affects the support watch component of hp-ux operating systems versions 8.0 through 9.0, representing a significant local privilege escalation flaw that adversaries could exploit to elevate their system access levels. This issue specifically targets the supportwatch utility which is designed to monitor and manage system support processes, creating a potential attack vector for malicious actors with local system access. The vulnerability stems from improper privilege handling within the supportwatch daemon, allowing local users to manipulate system resources and potentially execute code with elevated privileges.
The technical flaw manifests through insufficient input validation and privilege separation mechanisms within the supportwatch implementation. When the supportwatch process executes with elevated privileges to perform its monitoring functions, it fails to properly validate or sanitize input parameters that are passed to system calls or file operations. This weakness enables a local attacker to craft specific inputs that cause the supportwatch process to execute unintended system commands or manipulate privileged system resources. The vulnerability operates under the Common Weakness Enumeration framework as a privilege escalation weakness, specifically categorized as CWE-264, which encompasses permissions, privileges, and access control issues. This weakness allows attackers to gain access to resources that should normally be restricted to authorized users or system processes.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with potential access to critical system functions and data. Local users who can exploit this vulnerability can effectively bypass standard access controls and potentially gain root or administrative privileges, enabling them to modify system files, install malicious software, or extract sensitive information from the target system. The attack surface is particularly concerning because it requires only local access to the system, meaning that an attacker who has already established a foothold on the system can leverage this vulnerability to escalate their privileges without requiring additional authentication or network-based attack vectors. This makes the vulnerability particularly dangerous in environments where local access might be more readily available to untrusted users or where system administrators might not fully understand the implications of local privilege escalation attacks.
Mitigation strategies for this vulnerability should focus on both immediate system hardening and long-term security improvements. System administrators should immediately apply available patches or updates from hp-ux vendor releases that address the privilege escalation issue in supportwatch. Additionally, implementing proper privilege separation and input validation mechanisms can help prevent similar vulnerabilities from occurring in other system components. The ATT&CK framework categorizes this type of vulnerability under privilege escalation techniques, specifically noting that local privilege escalation attacks often exploit weaknesses in system utilities and daemon processes. Organizations should conduct regular security assessments to identify similar privilege escalation vulnerabilities in other system components and ensure that all system utilities properly implement least privilege principles. Network segmentation and access control measures can also help limit the potential impact of such vulnerabilities by reducing the attack surface available to local users.