Vulnerability CVE-2017-18649

Vulnerability Name:

CVE-2017-18649 (CCN-179503)

Assigned:

2020-04-07

Published:

2020-04-07

Updated:

2020-04-08

Summary:

An issue was discovered on Samsung mobile devices with N(7.x) software. An attacker can boot a device with root privileges because the bootloader for the Qualcomm MSM8998 chipset lacks an integrity check of the system image, aka the "SamFAIL" issue. The Samsung ID is SVE-2017-10465 (November 2017).

CVSS v3 Severity:

7.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-354

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2017-18649

Source: MISC
Type: Third Party Advisory
https://androidcommunity.com/samfail-method-gives-root-access-to-samsung-galaxy-note-8-snapdragon-variant-20171009/

Source: XF
Type: UNKNOWN
samsung-cve201718649-priv-esc(179503)

Source: CCN
Type: Samsung Mobile Web site
Android Security Updates

Source: CONFIRM
Type: Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:7.0:*:*:*:*:*:*:*

OR cpe:/o:google:android:7.1.0:*:*:*:*:*:*:*

OR cpe:/o:google:android:7.1.1:*:*:*:*:*:*:*

OR cpe:/o:google:android:7.1.2:*:*:*:*:*:*:*

AND

cpe:/h:qualcomm:msm8998:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

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