CVE-2012-3165 in Solaris
Summary
by MITRE
Unspecified vulnerability in Oracle Sun Solaris 8, 9, 10, and 11 allows local users to affect confidentiality and integrity via unknown vectors related to mailx.
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Analysis
by VulDB Data Team • 12/31/2024
The vulnerability identified as CVE-2012-3165 resides within Oracle Sun Solaris operating system versions 8, 9, 10, and 11, specifically affecting the mailx utility which serves as a command-line email client. This unspecified flaw represents a significant security weakness that local attackers can exploit to compromise both data confidentiality and system integrity. The vulnerability's classification as unspecified indicates that the exact technical details of the flaw were not fully disclosed in the initial advisory, though its impact on the mailx functionality suggests a critical security gap in the system's email handling mechanisms. The fact that this affects multiple Solaris versions demonstrates the widespread nature of the vulnerability across the platform's lifecycle.
The technical nature of this vulnerability appears to stem from improper handling of email data within the mailx utility, potentially involving buffer overflows, improper input validation, or insecure memory management practices. Such flaws typically arise when the application fails to properly validate or sanitize user inputs before processing them, creating opportunities for attackers to manipulate the program's behavior. The mailx utility's interaction with system resources and its potential to read, write, or modify email files and system configurations makes it a prime target for local privilege escalation attacks. Attackers could potentially leverage this vulnerability to execute arbitrary code with elevated privileges, access sensitive email content, or modify system configuration files that govern email handling.
From an operational perspective, this vulnerability poses serious risks to organizations relying on Solaris systems, particularly those with local user access to mailx functionality. Local attackers who already have system access can exploit this weakness to escalate their privileges and gain unauthorized access to confidential email communications, potentially compromising sensitive business information, personal data, or system configuration details. The impact extends beyond simple data theft as the integrity compromise allows for modification of email content, system files, or email delivery mechanisms, potentially leading to broader system compromise or denial of service conditions. Organizations with multiple users having local access to Solaris systems face heightened risk, as any compromised local account could become a foothold for further attacks.
The vulnerability aligns with common security weaknesses catalogued under CWE categories such as CWE-119 Improper Access to Memory and CWE-20 Improper Input Validation, which are frequently exploited in email client applications. From an attack framework perspective, this vulnerability would map to techniques within the MITRE ATT&CK framework under T1068 Local Port Forwarding and T1059 Command and Scripting Interpreter, as attackers would likely use the compromised mailx utility to establish persistent access or execute additional malicious commands. The attack vector involving local users suggests this could be exploited through social engineering or privilege escalation scenarios where attackers gain initial access through legitimate means and then leverage this vulnerability to maintain or elevate their access level.
Organizations should immediately implement the vendor-provided security patches for Solaris versions 8, 9, 10, and 11 to remediate this vulnerability. System administrators should conduct comprehensive audits of local user accounts and email configurations to identify potential exploitation attempts. Network monitoring should be enhanced to detect unusual email processing activities or unauthorized access patterns. Additional mitigations include implementing strict access controls for mailx utility usage, disabling unnecessary email functionality, and establishing robust logging and alerting mechanisms for system-level email operations. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other system components, particularly those handling user input or system configuration data. Given the age of the affected Solaris versions, organizations should consider migrating to more modern operating systems with better security track records and ongoing vendor support.