27091 : Ubuntu Linux Alternate/Server CD Installer Empty root Password
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
1	279	over 4 years ago	over 2 years ago	0 times	90%

Timeline

Disclosure Date	Exploit Publish Date
2006-07-12	2006-07-12

Description

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.

Classification

Location: Local Access Required
Attack Type: Authentication Management
Impact: Loss of Integrity
Exploit: Exploit Public
Disclosure: OSVDB Verified, Vendor Verified

Technical

Installations from the 'alternate install CD' and the 'server install CD' only are affected by this flaw.

Installations from the 'alternate install CD' and the 'server install CD' when the user selected "Continue" after the "Installation Complete" message was first displayed are not affected by this flaw.

Installations from the 'desktop CD' are not affected since the 'desktop CD' doesn't have this flaw.

Solution

Upgrade to version 6.06 LTS or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Canonical Ltd.

Ubuntu

6.06

References

CVE ID: 2006-3597 (see also: NVD)
Secunia Advisory ID: 21022
Vendor Specific Advisory URL: http://www.ubuntu.com/usn/usn-316-1
Vendor Specific News/Changelog Entry: https://launchpad.net/bugs/48350

Credit

Iwan Pieterse -

CVSSv2 Score

CVSSv2 Base Score = 7.2
Source: nvd.nist.gov | Generated: 2006-07-18 | Disagree?

Blogs

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This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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