Medium severity · published Sep 12, 2018
CVE-2017-18347
Incorrect access control in RDP Level 1 on STMicroelectronics STM32F0 series devices allows physically present attackers to extract the device's protected firmware via a special…
4.6
CVSS
0.4%
EPSS
No
On KEV
Description
Incorrect access control in RDP Level 1 on STMicroelectronics STM32F0 series devices allows physically present attackers to extract the device's protected firmware via a special sequence of Serial Wire Debug (SWD) commands because there is a race condition between full initialization of the SWD interface and the setup of flash protection.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
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
Stm32f031e6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f031f4 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f031f6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f038c6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f038e6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f038f6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f038g6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f038k6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f042c4 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f042c6 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f042f4 Firmware · ST
All versions, or not specified · source: NVD
SF
Stm32f042f6 Firmware · ST
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18347
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-18347
Vendor Advisory
https://community.st.com/s/question/0D50X00009Xke7aSAB/readout-protection-cracked-on-stm32
Exploit
https://www.aisec.fraunhofer.de/en/FirmwareProtection.html
Exploit
https://www.usenix.org/conference/woot17/workshop-program/presentation/obermaier