What is CVE-2019-15027?

CVE-2019-15027 is a critical-severity vulnerability in Mediatek Mt6577, classified under OS Command Injection. CVSS score: 9.8/10. Published 2019-08-14.

How severe is CVE-2019-15027?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Mediatek Mt6577

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.032 (86.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-15027?: CVE-2019-15027 is a critical-severity vulnerability in Mediatek Mt6577, classified under OS Command Injection. CVSS score: 9.8/10. Published 2019-08-14.
How severe is CVE-2019-15027?: Critical severity. CVSS v3 base score is 9.8 out of 10.