CVE-2019-15027

moderate-risk
Published 2019-08-14

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.

Do I need to act?

~
2.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Mt8163 Firmware
Mt6625 Firmware
Mt6577 Firmware

Affected Vendors

Mediatek

References (4)

Exploit https://dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for...
Third Party Advisory https://github.com/andr3jx/MTK6577/blob/238012ebf18e3751397884d1742ff7ab6417e80d...
Exploit https://dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for...
Third Party Advisory https://github.com/andr3jx/MTK6577/blob/238012ebf18e3751397884d1742ff7ab6417e80d...
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 5/34 · Minimal
Exposure 9/34 · Low