CVE-2005-3099 in Solaris
Summary
by MITRE
Unspecified vulnerability in the (1) Xsun and (2) Xprt commands in Solaris 7, 8, 9, and 10 allows local users to execute arbitrary code.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 06/29/2025
The vulnerability identified as CVE-2005-3099 represents a critical security flaw affecting the Xsun and Xprt commands within Solaris operating systems versions 7 through 10. This issue falls under the category of local privilege escalation vulnerabilities, where malicious users with legitimate system access can exploit weaknesses to gain elevated system privileges. The unspecified nature of the vulnerability details suggests that the core flaw likely involves improper input validation or buffer handling mechanisms within these X Window System components that are integral to graphical user interface operations.
The technical implementation of this vulnerability stems from inadequate security controls within the Xsun and Xprt utilities which are part of the X Window System implementation in Solaris. These commands typically handle graphics rendering and display operations for X11 applications, making them potential attack vectors for code execution. The flaw likely manifests through improper handling of command line arguments or environment variables that could be manipulated by local users to inject malicious code. According to CWE classification, this vulnerability aligns with CWE-119 which encompasses weaknesses involving the improper handling of memory or resources, and potentially CWE-78 which addresses improper neutralization of special elements used in OS commands.
From an operational perspective, this vulnerability poses significant risks to Solaris systems since it allows local users to execute arbitrary code with elevated privileges. Attackers could leverage this weakness to escalate their privileges from standard user accounts to root access, potentially compromising entire systems. The impact extends beyond individual system compromise as attackers could use this vulnerability as a foothold for broader network infiltration. The X Window System components are commonly used across various Solaris installations, making this vulnerability widespread and particularly dangerous in enterprise environments where graphical interfaces are prevalent.
Security professionals should implement immediate mitigations including applying vendor patches and updates released by Sun Microsystems for affected Solaris versions. System administrators should also consider implementing discretionary access controls and monitoring for suspicious command execution patterns. The vulnerability demonstrates the importance of secure coding practices in system utilities and highlights the need for comprehensive security testing of core system components. Organizations should review their access control policies and ensure that users have only the minimum necessary privileges required for their operational functions. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other system components that may present similar attack surfaces.
The ATT&CK framework categorizes this vulnerability under privilege escalation techniques, specifically leveraging weaknesses in system utilities and command execution mechanisms. This represents a classic example of how seemingly benign system components can become attack vectors when proper security controls are absent. The vulnerability underscores the critical importance of maintaining up-to-date system patches and implementing defense-in-depth strategies that include monitoring, access controls, and regular security assessments to prevent exploitation of similar weaknesses across the enterprise infrastructure.