Executive Summary

Summary
Title unp: Arbitrary command execution
Informations
Name GLSA-200801-01 First vendor Publication 2008-01-09
Vendor Gentoo Last vendor Modification 2008-01-09
Severity (Vendor) Normal 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:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

unp allows execution of arbitrary code via malicious file names.

Background

unp is a script for unpacking various file formats.

Description

Erich Schubert from Debian discovered that unp does not escape file names properly before passing them to calls of the shell.

Impact

A remote attacker could entice a user or automated system to unpack a compressed archive with a specially crafted file name, leading to the execution of shell commands from within the filename. That code will be executed with the privileges of the user running unp.

Workaround

There is no known workaround at this time.

Resolution

All unp users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/unp-1.0.14"

References

[ 1 ] CVE-2007-6610 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6610

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200801-01.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200801-01.xml

OpenVAS Exploits

Date Description
2008-09-24 Name : Gentoo Security Advisory GLSA 200801-01 (remote)
File : nvt/glsa_200801_01.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
42759 unp File Name Handling Arbitrary Command Injection

Nessus® Vulnerability Scanner

Date Description
2008-01-10 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200801-01.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:35:27
  • Multiple Updates