CVE-1999-1425 in Solaris
Summary
by MITRE
Solaris Solstice AdminSuite (AdminSuite) 2.1 incorrectly sets write permissions on source files for NIS maps, which could allow local users to gain privileges by modifying /etc/passwd.
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Analysis
by VulDB Data Team • 04/17/2026
The vulnerability described in CVE-1999-1425 affects Solaris Solstice AdminSuite version 2.1, specifically targeting the NIS (Network Information Service) map management functionality. This issue represents a classic privilege escalation vulnerability that exploits improper file permission settings within the system administration tools. The flaw exists in how the AdminSuite handles file permissions when creating or updating NIS map source files, creating a security boundary violation that local attackers can leverage for unauthorized system access.
The technical implementation of this vulnerability stems from the incorrect configuration of write permissions on source files used for NIS map operations. When NIS maps are processed, the system creates temporary or source files that contain user account information and other sensitive data. In this case, the AdminSuite 2.1 fails to properly restrict write access to these files, allowing local users to modify the underlying data structures that govern user authentication and authorization. The specific target file mentioned is /etc/passwd, which serves as the primary user account database in Unix-like systems and contains critical information about user identities, group memberships, and access controls.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with the ability to modify the fundamental user authentication database. Local users who can exploit this flaw can add new user accounts, modify existing user permissions, or completely subvert the system's authentication mechanism. This represents a significant security compromise that could lead to persistent access, data theft, or further exploitation of the compromised system. The vulnerability's local nature means that attackers do not require network access or special privileges to exploit it, making it particularly dangerous in multi-user environments where local access is common.
This vulnerability aligns with CWE-732: Incorrect Permission Assignment for Critical Resource, which specifically addresses situations where critical system files receive inappropriate permissions that allow unauthorized modification. The flaw also maps to ATT&CK technique T1068: Exploitation for Privilege Escalation, as it enables local users to escalate their privileges through manipulation of system configuration files. Organizations running Solaris systems with AdminSuite 2.1 should prioritize patching or implementing compensating controls immediately, as the vulnerability has been present since 1999 and represents a fundamental flaw in the system's privilege management. The recommended mitigation involves correcting file permissions on NIS map source files, implementing proper access controls for system administration tools, and conducting regular security audits of file permissions across critical system components.