CVE-2007-0503 in Solaris
Summary
by MITRE
Unspecified vulnerability in kcms_calibrate in Sun Solaris 8 and 9 before 20071122 allows local users to execute arbitrary commands via unknown vectors.
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Analysis
by VulDB Data Team • 03/15/2021
The vulnerability identified as CVE-2007-0503 represents a critical security flaw within the kcms_calibrate component of Sun Solaris operating systems version 8 and 9 prior to the 20071122 patch release. This issue falls under the category of local privilege escalation vulnerabilities, where malicious actors with local system access can potentially execute arbitrary commands with elevated privileges. The unspecified nature of the vulnerability vectors makes this particular flaw especially concerning as it may encompass multiple attack surfaces or implementation weaknesses that could be exploited by determined adversaries. The kcms_calibrate utility is part of the Solaris Common Desktop Environment and is responsible for color calibration functionality within the graphical user interface, making it an integral component of the desktop environment that could be leveraged for system compromise.
Technical exploitation of this vulnerability occurs through unknown vectors that likely involve improper input validation or privilege handling within the kcms_calibrate utility. The flaw enables local users to bypass normal access controls and execute commands with higher privileges than initially granted. This type of vulnerability typically stems from inadequate sanitization of user inputs or improper privilege separation mechanisms within the affected software component. The unspecified nature suggests that the vulnerability could be related to command injection, buffer overflow, or privilege escalation techniques that allow attackers to manipulate the utility's execution flow. From a cybersecurity perspective, this represents a significant weakness in the system's defense-in-depth strategy, as it provides an attack vector that does not require network access or complex exploitation techniques.
The operational impact of CVE-2007-0503 extends beyond simple privilege escalation, potentially allowing attackers to gain unauthorized access to system resources, modify critical configuration files, or establish persistent backdoors within the affected Solaris systems. This vulnerability directly contradicts the principle of least privilege by enabling local users to execute commands with elevated system privileges, which could lead to complete system compromise. The affected systems, particularly those running Solaris 8 and 9 versions prior to the November 2007 patch, would be vulnerable to exploitation by any user with local access, including both legitimate users and potential attackers who have gained initial access through other means. This makes the vulnerability particularly dangerous in multi-user environments where local access might be more easily obtained than network-based attacks. The implications for enterprise security are significant, as this flaw could be exploited to undermine the integrity of entire server environments.
Mitigation strategies for this vulnerability center on applying the appropriate security patches released by Sun Microsystems in their 20071122 update cycle. System administrators should immediately implement the official patches to address the unspecified vulnerability vectors within kcms_calibrate. Additionally, implementing proper access controls and privilege management policies can help limit the potential impact of such vulnerabilities by reducing the number of local accounts with elevated privileges. Network segmentation and monitoring of local system activity can provide early detection of potential exploitation attempts. The vulnerability aligns with CWE-20 (Improper Input Validation) and CWE-264 (Permissions, Privileges, and Access Controls) categories, representing a classic example of how insufficient input validation combined with improper privilege handling can create dangerous security weaknesses. Organizations should also consider implementing the ATT&CK framework's privilege escalation techniques to better understand and defend against such attack vectors, particularly focusing on local persistence and privilege escalation tactics that could leverage this vulnerability for further system compromise.