Vulnerability Note VU#846320
Samsung Magician fails to update itself securely
Original Release date: 15 Jun 2017 | Last revised: 15 Jun 2017

Overview
Samsung Magician fails to securely check for and retrieve updates, which an allow an authenticated attacker to execute arbitrary code with administrator privileges.

Description
Samsung Magician is a management utility for Samsung SSDs. Prior to version 5.0, Samsung Magician checks for and retrieves updates over HTTP. Prior to version 5.1, Samsung Magician uses HTTPS to perform update operations, however it does not validate SSL certificates.

Impact
An attacker on the same network as, or who can otherwise affect network traffic from, a Samsung Magician user can cause the Magician update process to execute arbitrary code with system administrator privileges.

Solution
Apply an update
This issue is addressed in Samsung Magician 5.1. Note that because the update mechanism is vulnerable, do not use the self-update mechanism for Samsung Magician to obtain the fixed version.
Avoid untrusted networks

Avoid using untrusted networks, including public WiFi. Using your device on an untrusted network increases the chance of falling victim to a MITM attack.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate UpdatedSamsung MemoryAffected24 Apr 201715 Jun 2017If you are a vendor and your product is affected, let
us know.

CVSS Metrics (Learn More)

Group
Score
Vector

Base
8.3
AV:A/AC:L/Au:N/C:C/I:C/A:C

Temporal
6.5
E:POC/RL:OF/RC:C

Environmental
4.9
CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

https://vuls.cert.org/confluence/display/tools/CERT+Tapioca

https://www.samsung.com/semiconductor/minisite/ssd/product/consumer/magician.html
http://www.samsung.com/semiconductor/minisite/ssd/download/tools.html

Credit

This vulnerability was reported by Will Dormann of the CERT/CC.
This document was written by Will Dormann.

Other Information

CVE IDs:
CVE-2017-3218

Date Public:
15 Jun 2017

Date First Published:
15 Jun 2017

Date Last Updated:
15 Jun 2017

Document Revision:
11

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