Executive Summary

Summary
Title Mgetty: Insecure temporary file usage
Informations
Name GLSA-200812-08 First vendor Publication 2008-12-06
Vendor Gentoo Last vendor Modification 2008-12-06
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:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Mgetty uses temporary files in an insecure manner, allowing for symlink attacks.

Background

Mgetty is a set of fax and voice modem programs.

Description

Dmitry E. Oboukhov reported that the "spooldir" directory in fax/faxspool.in is created in an insecure manner.

Impact

A local attacker could exploit this vulnerability to overwrite arbitrary files with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Mgetty users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/mgetty-1.1.36-r2"

References

[ 1 ] CVE-2008-4936 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4936

Availability

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

http://security.gentoo.org/glsa/glsa-200812-08.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200812-08.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-59 Improper Link Resolution Before File Access ('Link Following')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

OpenVAS Exploits

Date Description
2008-12-10 Name : FreeBSD Ports: mgetty+sendfax
File : nvt/freebsd_mgetty+sendfax.nasl
2008-12-10 Name : Gentoo Security Advisory GLSA 200812-08 (mgetty)
File : nvt/glsa_200812_08.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
49604 mgetty faxspool Temporary File Symlink Arbitrary File Overwrite

Nessus® Vulnerability Scanner

Date Description
2008-12-08 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_44ee8160c45311dda7210030843d3802.nasl - Type : ACT_GATHER_INFO
2008-12-08 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200812-08.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-02-17 11:36:09
  • Multiple Updates