GLSA 200911-06: PEAR Net_Traceroute: Command injection

http://security.gentoo.org/

Severity:	high
Title:	PEAR Net_Traceroute: Command injection
Date:	11/26/2009
Bugs:	#294264
ID:	200911-06

Synopsis

An input sanitation error in PEAR Net_Traceroute might allow remote attackers to execute arbitrary commands.

Background

PEAR Net_Traceroute is an OS independent wrapper class for executing traceroute calls from PHP.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-php/PEAR-Net_Traceroute	< 0.21.2	>= 0.21.2	All supported architectures

Description

Pasquale Imperato reported that the $host parameter to the traceroute() function in Traceroute.php is not properly sanitized before being passed to exec().

Impact

A remote attacker could exploit this vulnerability when user input is passed directly to PEAR Net_Traceroute in a PHP script, possibly resulting in the remote execution of arbitrary shell commands with the privileges of the user running the affected PHP script.

Workaround

Ensure that all data that is passed to the traceroute() function is properly shell escaped (for instance using the escapeshellcmd() function).

Resolution

All PEAR Net_Traceroute users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-php/PEAR-Net_Traceroute-0.21.2"

References

CVE-2009-4025

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200911-06.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.