Executive Summary

Summary
Title shadow vulnerability
Informations
Name USN-308-1 First vendor Publication 2006-07-05
Vendor Ubuntu Last vendor Modification 2006-07-05
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
 
Calculate full CVSS 3.0 Vectors scores

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
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects the following Ubuntu releases:

Ubuntu 5.04 Ubuntu 5.10 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 5.04:
passwd 1:4.0.3-30.7ubuntu16.1

Ubuntu 5.10:
passwd 1:4.0.3-37ubuntu10

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

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

Details follow:

Ilja van Sprundel discovered that passwd, when called with the -f, -g, or -s option, did not check the result of the setuid() call. On systems that configure PAM limits for the maximum number of user processes, a local attacker could exploit this to execute chfn, gpasswd, or chsh with root privileges.

This does not affect the default configuration of Ubuntu.

Original Source

Url : http://www.ubuntu.com/usn/USN-308-1

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 11

Open Source Vulnerability Database (OSVDB)

Id Description
26995 shadow setuid Failure Local Privilege Escalation

Shadow contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when passwd, called with the -f, -g, or -s option, did not check the result of the 'setuid' call. This flaw may lead to a loss of Confidentiality and Integrity.

Nessus® Vulnerability Scanner

Date Description
2007-11-10 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-308-1.nasl - Type : ACT_GATHER_INFO
2006-10-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1150.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
Date Informations
2014-02-17 12:03:34
  • Multiple Updates