Ubuntu 9.10 : grub2 vulnerability (USN-868-1)

High Nessus Plugin ID 65119


The remote Ubuntu host is missing one or more security-related patches.


It was discovered that GRUB 2 did not properly validate passwords. An attacker with physical access could conduct a brute-force attack and bypass authentication by submitting a 1 character password.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: High

ID: 65119

File Name: ubuntu_USN-868-1.nasl

Version: $Revision: 1.4 $

Type: local

Agent: unix

Published: 2013/03/09

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:grub-common, p-cpe:/a:canonical:ubuntu_linux:grub-coreboot, p-cpe:/a:canonical:ubuntu_linux:grub-efi, p-cpe:/a:canonical:ubuntu_linux:grub-efi-amd64, p-cpe:/a:canonical:ubuntu_linux:grub-efi-ia32, p-cpe:/a:canonical:ubuntu_linux:grub-emu, p-cpe:/a:canonical:ubuntu_linux:grub-firmware-qemu, p-cpe:/a:canonical:ubuntu_linux:grub-ieee1275, p-cpe:/a:canonical:ubuntu_linux:grub-linuxbios, p-cpe:/a:canonical:ubuntu_linux:grub-pc, p-cpe:/a:canonical:ubuntu_linux:grub-rescue-pc, p-cpe:/a:canonical:ubuntu_linux:grub2, cpe:/o:canonical:ubuntu_linux:9.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Patch Publication Date: 2009/12/08

Reference Information

CVE: CVE-2009-4128

OSVDB: 60655

USN: 868-1

CWE: 287