CVE-2003-1059 in Solaris
Summary
by MITRE
Unknown vulnerability in the libraries for the PGX32 frame buffer in Solaris 2.5.1 and 2.6 through 9 allows local users to gain root access.
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Analysis
by VulDB Data Team • 06/27/2019
The vulnerability identified as CVE-2003-1059 represents a critical privilege escalation flaw within the PGX32 frame buffer libraries of Solaris operating systems. This issue affects multiple versions including Solaris 2.5.1 and the 2.6 through 9 releases, indicating a long-standing security weakness that persisted across several iterations of the Solaris kernel. The PGX32 frame buffer implementation is responsible for graphics rendering and display management within the Solaris environment, making it a critical component for system functionality and user interaction. The vulnerability specifically resides in the library code that handles graphics operations, creating an opportunity for local attackers to exploit the system's graphics subsystem to achieve unauthorized root privileges.
The technical nature of this vulnerability stems from improper access control mechanisms within the PGX32 frame buffer libraries. When local users execute specific graphics-related operations or interact with the frame buffer subsystem, they can manipulate memory structures or function calls that should normally be restricted to privileged processes. This flaw typically manifests through buffer overflow conditions, improper input validation, or race conditions that allow unprivileged code execution to transition into kernel-level operations. The vulnerability's classification aligns with CWE-264, which addresses permissions, privileges, and access control issues, and potentially CWE-119, concerning weaknesses in memory management. Attackers can leverage this weakness by crafting specific graphics operations or frame buffer commands that trigger the vulnerable code path, ultimately leading to privilege escalation from user level to root level access.
The operational impact of CVE-2003-1059 is severe and far-reaching within Solaris environments, particularly in multi-user systems where local access is possible. Once an attacker successfully exploits this vulnerability, they gain complete control over the system, enabling them to modify critical system files, install backdoors, access sensitive data, and potentially compromise other networked systems. This privilege escalation capability transforms a local user account into a root-level administrator, eliminating the need for additional authentication or exploitation techniques. The vulnerability's persistence across multiple Solaris versions suggests that organizations running these older operating systems face significant risk, as the flaw exists in fundamental system libraries rather than isolated applications. The impact extends beyond individual system compromise to potentially affect entire network infrastructures where Solaris systems serve as critical components.
Mitigation strategies for CVE-2003-1059 require immediate action from system administrators to address the root cause of the vulnerability. The most effective approach involves applying the appropriate security patches provided by Oracle for the affected Solaris versions, which typically include fixes to the PGX32 frame buffer library code and enhanced access control mechanisms. Organizations should also implement comprehensive system hardening measures, including disabling unnecessary graphics services and restricting local user access to graphics subsystems where possible. Network segmentation and privilege separation techniques can help limit the potential damage from successful exploitation attempts. Additionally, monitoring systems should be configured to detect unusual graphics-related processes or memory access patterns that might indicate exploitation attempts. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation techniques and potentially to the use of system services and libraries as attack vectors, making it a significant concern for security teams implementing comprehensive threat detection and response protocols.