Executive Summary

Summary
Title installer vulnerability
Informations
Name USN-316-1 First vendor Publication 2006-07-12
Vendor Ubuntu Last vendor Modification 2006-07-12
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
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Detail

A security issue affects the following Ubuntu releases:

Ubuntu 6.06 LTS

This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the following package versions:

Ubuntu 6.06 LTS:
passwd 1:4.0.13-7ubuntu3.2

In general, a standard system upgrade is sufficient to effect the necessary changes.

Details follow:

Iwan Pieterse discovered that, if you select "Go Back" at the final message displayed by the alternate or server CD installer ("Installation complete") and then continue with the installation from the installer's main menu, the root password is left blank rather than locked. This was due to an error while clearing out the root password from the installer's memory to avoid possible information leaks.

Installations from the alternate or server CDs when the user selected "Continue" when the "Installation complete" message was first displayed are not affected by this bug. Installations from the desktop CD are not affected by this bug at all.

When you upgrade your passwd package to the newest version, it will detect this condition and lock the root password if it was previously blank. The next point release of Ubuntu 6.06 LTS will include a corrected installer.

Original Source

Url : http://www.ubuntu.com/usn/USN-316-1

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1

Open Source Vulnerability Database (OSVDB)

Id Description
27091 Ubuntu Linux Alternate/Server CD Installer Empty root Password

Canonical Ltd. Ubuntu contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when the "Go Back" option is selected after "Installation Complete" message during the installation. This sets the root password to a null string which can be exploited by an attacker to gain unauthorized access to the system.

Nessus® Vulnerability Scanner

Date Description
2007-11-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-316-1.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:03:37
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