Executive Summary

Summary
Title Portage: Man-in-the-middle attack
Informations
Name GLSA-201507-16 First vendor Publication 2015-07-10
Vendor Gentoo Last vendor Modification 2015-07-10
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:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 9.3 Attack Range Network
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in Portage's urlopen function could allow a remote attacker to conduct a man-in-the-middle attack.

Background

Portage is the package management and distribution system for Gentoo.

Description

Portage does not verify X.509 SSL certificate properly if HTTPS is used.

Impact

A remote attacker can spoof servers and modify binary package lists via specially crafted certificate.

Workaround

There is no known workaround at this time.

Resolution

All Portage users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/portage-2.1.12.2"

References

[ 1 ] CVE-2013-2100 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2100

Availability

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

https://security.gentoo.org/glsa/201507-16

Original Source

Url : http://security.gentoo.org/glsa/glsa-201507-16.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-310 Cryptographic Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Nessus® Vulnerability Scanner

Date Description
2015-09-23 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201507-16.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2015-09-24 13:24:35
  • Multiple Updates
2015-07-10 17:25:34
  • First insertion