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Intelligence Center » Browse All Vulnerabilities » CVE-2008-3896

Overview

Vulnerability Score 2.1 2.1
CVE Id CVE-2008-3896
Last Modified 29 Jan 2009 01:54:44
Published 03 Sep 2008 10:12:00
Confidentiality Impact PARTIAL PARTIAL
Integrity Impact NONE NONE
Availability Impact NONE NONE
Access Vector LOCAL
Access Complexity LOW
Authentication NONE

CVE-2008-3896

Summary

Grub Legacy 0.97 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer before and after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer.

Vulnerable Systems

Application

  • Gnu Grub Legacy 0.92

  • Gnu Grub Legacy 0.93

  • Gnu Grub Legacy 0.94

  • Gnu Grub Legacy 0.94-i386-pc

  • Gnu Grub Legacy 0.95

  • Gnu Grub Legacy 0.95-i386-pc

  • Gnu Grub Legacy 0.96

  • Gnu Grub Legacy 0.96-i386-pc

  • Gnu Grub Legacy 0.97

  • Gnu Grub Legacy 0.97-i386-pc


References

BUGTRAQ - 20080825 [IVIZ-08-009] Grub Legacy Security Model bypass exploiting wrong BIOS API usage

MISC - http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf

MISC - http://www.ivizsecurity.com/preboot-patch.html

SREASON - 4206

SREASON - 4204


Last Updated: 27 May 2016 10:48:20