CVE-2018-20135

Samsung Galaxy Apps before 4.4.01.7 allows modification of the hostname used for load balancing on installations of applications through a man-in-the-middle attack. An attacker may trick Galaxy Apps into using an arbitrary hostname for which the attacker can provide a valid SSL certificate, and emulate the API of the app store to modify existing apps at installation time. The specific flaw involves an HTTP method to obtain the load-balanced hostname that enforces SSL only after obtaining a hostname from the load balancer, and a missing app signature validation in the application XML. An attacker can exploit this vulnerability to achieve Remote Code Execution on the device. The Samsung ID is SVE-2018-12071.

CVSS v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.adyta.pt/en/2019/01/29/writeup-samsung-app-store-rce-via-mitm-2/	Exploit Third Party Advisory
https://security.samsungmobile.com/securityUpdate.smsb	Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:samsung:galaxy_apps:*:*:*:*:*:*:*:*

Information

Published : 2019-06-07 09:29

Updated : 2019-06-11 08:09

NVD link : CVE-2018-20135

Mitre link : CVE-2018-20135

JSON object : View

CWE

CWE-295

Improper Certificate Validation

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Products Affected

samsung

galaxy_apps

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