multipath-tools: World-writeable socket

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 201006-10 / multipath-tools
Release Date	June 01, 2010
Latest Revision	June 01, 2010: 01
Impact	normal
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
sys-fs/multipath-tools	< 0.4.8-r1	>= 0.4.8-r1	All supported architectures

Related bugreports: #264564

Synopsis

multipath-tools does not set correct permissions on the socket file, making it possible to send arbitrary commands to the multipath daemon for local users.

2. Impact Information

Background

multipath-tools are used to drive the Device Mapper multipathing driver.

Description

multipath-tools uses world-writable permissions for the socket file (/var/run/multipathd.sock).

Impact

Local users could send arbitrary commands to the multipath daemon, causing cluster failures and data loss.

3. Resolution Information

Workaround

chmod o-rwx /var/run/multipath.sock

Resolution

All multipath-tools users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-fs/multipath-tools-0.4.8-r1"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since November 13, 2009. It is likely that your system is already no longer affected by this issue.

4. References

CVE-2009-0115

Page updated June 01, 2010

Summary: This is a Gentoo Linux Security Advisory

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