CVE-2019-15027

The MediaTek Embedded Multimedia Card (eMMC) subsystem for Android on MT65xx, MT66xx, and MT8163 SoC devices allows attackers to execute arbitrary commands as root via shell metacharacters in a filename under /data, because clear_emmc_nomedia_entry in platform/mt6577/external/meta/emmc/meta_clr_emmc.c invokes 'system("/system/bin/rm -r /data/' followed by this filename upon an eMMC clearance from a Meta Mode boot. NOTE: compromise of Fire OS on the Amazon Echo Dot would require a second hypothetical vulnerability that allows creation of the required file under /data.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for-android-mediatek-chips/	Exploit Third Party Advisory
https://github.com/andr3jx/MTK6577/blob/238012ebf18e3751397884d1742ff7ab6417e80d/mediatek/platform/mt6577/external/meta/emmc/meta_clr_emmc.c#L302-L305	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:mediatek:mt8163_firmware:-:*:*:*:*:android:*:*

cpe:2.3:h:mediatek:mt8163:-:*:*:*:*:android:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:mediatek:mt6625_firmware:-:*:*:*:*:android:*:*

cpe:2.3:h:mediatek:mt6625:-:*:*:*:*:android:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:mediatek:mt6577_firmware:-:*:*:*:*:android:*:*

cpe:2.3:h:mediatek:mt6577:-:*:*:*:*:android:*:*

Information

Published : 2019-08-14 06:15

Updated : 2020-08-24 10:37

NVD link : CVE-2019-15027

Mitre link : CVE-2019-15027

JSON object : View

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Products Affected

mediatek

mt8163
mt8163_firmware
mt6625_firmware
mt6577
mt6577_firmware
mt6625

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9.8 /10