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isync: Man-in-the-Middle attack

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201310-02 / isync
Release Date October 05, 2013
Latest Revision October 05, 2013: 1
Impact low
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-mail/isync < 1.0.6 >= 1.0.6 All supported architectures

Related bugreports: #458420

Synopsis

A vulnerability in isync could allow remote attackers to perform man-in-the-middle attacks.

2.  Impact Information

Background

isync is an IMAP and MailDir mailbox synchronizer.

Description

isync does not properly verify the server’s hostname against the CN field in the SSL certificate.

Impact

A remote server could perform man-in-the-middle attacks to disclose passwords or obtain other sensitive information.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All isync users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-mail/isync-1.0.6"

4.  References



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Page updated October 05, 2013

Summary: This is a Gentoo Linux Security Advisory

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