• News
• Infocus
• Foundations
• Microsoft
• Unix
• IDS
• Incidents
• Virus
• Pen-Test
• Firewalls
• Columnists
• Mailing Lists
• Newsletters
• Bugtraq
• Focus on IDS
• Focus on Linux
• Focus on Microsoft
• Forensics
• Pen-test
• Security Basics
• Vuln Dev
• Vulnerabilities
• Jobs
• Job Opportunities
• Resumes
• Job Seekers
• Employers
• Tools
• RSS
• News
• Vulns
• Security Research

• info
• discussion
• exploit
• solution
• references

Apache Web Server Scoreboard Memory Segment Overwriting SIGUSR1 Sending Vulnerability

Apache is a freely available webserver for Unix and Linux variants, as well as Microsoft operating systems.

A vulnerability in the handling of the Apache scorecard has been reported. A user with the privileges of the Apache user could attach to an httpd process, and overwrite the parent[].pid and parent[].last_rtime shared memory segments. By overwriting these, a signal may be sent to an arbitrary process with administrative privileges.