关键漏洞信息 Subject: Solaris patchadd(1): (3) symlink vulnerability Source: Jonathan Fortin Date: 2000-12-18 11:02:58 Vulnerability Details Description: The command in Solaris creates temporary files with predictable names and world-write permissions ( , , ). An attacker can exploit this by predicting the process ID and creating symbolic links that point to critical system files. When writes to these temporary files, it inadvertently modifies the target system files, leading to privilege escalation and potential system compromise. Exploit Steps: 1. Inform the administrator of a new patch, prompting them to run . 2. Use a script to create symbolic links pointing to and and wait for to execute, at which point the attacker can modify the credentials. 3. Gain administrative access ( ). Affected Systems: Solaris 2.7 sparc with the latest installation cluster. Solutions: There aren't obvious file system-based solutions. The recommendation humorously suggests extreme measures such as physically removing network cables, ensuring no other users are active, and executing as a third-party user. Note: The primary issue is a lack of proper file permissions and race conditions in .