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National Cyber-Alert System

Vulnerability Summary for CVE-2007-4998

Original release date:01/31/2008
Last revised:11/15/2008
Source: US-CERT/NIST

Overview

cp, when running with an option to preserve symlinks on multiple OSes, allows local, user-assisted attackers to overwrite arbitrary files via a symlink attack using crafted directories containing multiple source files that are copied to the same destination.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:6.9 (MEDIUM) (AV:L/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

Vendor Statments (disclaimer)

Official Statement from Red Hat (02/12/2008)
This issue affects the busybox package in Red Hat Enterprise Linux 2.1, 3, 4, and 5, This issue affects the fileutils package in Red Hat Enterprise Linux 2.1. This issue affects the coreutils package in Red Hat Enterprise Linux 3. The coreutils package in Red Hat Enterprise Linux 4 and 5 are not vulnerable to this issue. Given this issue has minimal risk we do not intend to issues updates to correct this issue in affected versions of Red Hat Enterprise Linux. For more information please see: https://bugzilla.redhat.com/show_bug.cgi?id=356471

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-2023
Hyperlink:https://issues.rpath.com/browse/RPL-2023
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=356471
Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=356471
External Source: OSVDB
Name: 43228
Hyperlink:http://osvdb.org/43228

Vulnerable software and versions

Nav control imageConfiguration 1
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spacerspacerNav control image* cpe:/o:linux:linux_kernel
* Denotes Vulnerable Software
* Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
CVE Standard Vulnerability Entry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4998