Medium severity · published Sep 24, 2019
CVE-2019-14238
On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction…
6.6
CVSS
0.4%
EPSS
No
On KEV
Description
On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
Stm32f4 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f7 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32h7 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32l0 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32l1 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32l4 Firmware · ST
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14238
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-14238
Exploit
https://www.usenix.org/conference/woot19/presentation/schink
Exploit
https://www.usenix.org/system/files/woot19-paper_schink.pdf
More from Stm32f4 Firmware
9.8
CVE-2019-14236
On STMicroelectronics STM32L0, STM32L1, STM32L4, STM32F4, STM32F7, and STM32H7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be…