Multimedia eMMC Subsystem on Android meta_clr_emmc.c clear_emmc_nomedia_entry Shell Metacharacter command injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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8.5 | $0-$5k | 0.00 |
A vulnerability was found in Multimedia eMMC Subsystem on Android (Android App Software) (the affected version is unknown). It has been declared as critical. This vulnerability affects the function clear_emmc_nomedia_entry
of the file platform/mt6577/external/meta/emmc/meta_clr_emmc.c. The manipulation as part of a Shell Metacharacter leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
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.
The weakness was shared 08/14/2019. This vulnerability was named CVE-2019-15027 since 08/13/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
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Name
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Command injectionCWE: CWE-77 / CWE-74 / CWE-707
ATT&CK: T1202
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
08/13/2019 🔍08/14/2019 🔍
08/15/2019 🔍
11/25/2023 🔍
Sources
Advisory: dojo.bullguard.comStatus: Not defined
CVE: CVE-2019-15027 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20130704
Entry
Created: 08/15/2019 11:24Updated: 11/25/2023 14:27
Changes: 08/15/2019 11:24 (37), 07/28/2020 10:29 (18), 11/25/2023 14:27 (3)
Complete: 🔍
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