Advisory Details

August 10th, 2016

Joyent SmartOS dtrace Zone Escape Privilege Escalation Vulnerability

CVE ID
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Joyent
AFFECTED PRODUCTS	SmartOS
VULNERABILITY DETAILS	This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Joyent SmartOS. User interaction is required to exploit this vulnerability in that the target must open a malicious file. The specific flaw exists within the dtrace implementation in SmartOS. A method within this implementation allows for an arbitrary write to occur from an out of bounds indexing issue which results in code execution. This allows an attacker to elevate privileges to escape a zone and achieve privileged execution on the headnode.
ADDITIONAL DETAILS	Joyent has issued an update to correct this vulnerability. More details can be found at: https://help.joyent.com/entries/99083238--UPDATED-Security-Advisory-Docker-DTrace-and-MAC-Protection-Vulnerabilities
DISCLOSURE TIMELINE	2016-01-26 - Vulnerability reported to vendor 2016-08-10 - Coordinated public release of advisory
CREDIT	Ben Murphy

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