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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.032 (87.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
Weakness classification (CWE)
References
- dojo.bullguard.com/dojo-by-bullguard/blog/gaining-rooting-primitives-for-androi… (Exploit, Third Party Advisory)
- github.com/andr3jx/MTK6577/blob/238012ebf18e3751397884d1742ff7ab6417e80d/mediat… (Third Party Advisory)
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.