STMicroelectronics STM32L0/STM32L1/STM32L4/STM32F4/STM32F7/STM32H7 PCROP authorization
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.7 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, has been found in STMicroelectronics STM32L0, STM32L1, STM32L4, STM32F4, STM32F7 and STM32H7. Affected by this issue is an unknown functionality of the component PCROP. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is confidentiality, integrity, and availability. CVE summarizes:
On STMicroelectronics STM32L0, STM32L1, STM32L4, STM32F4, STM32F7, and STM32H7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated by observing CPU registers and the effect of code/instruction execution.
The weakness was released 09/12/2019. This vulnerability is handled as CVE-2019-14236 since 07/22/2019. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Vendor
Name
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.7VulDB Meta Temp Score: 7.7
VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: AuthorizationCWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
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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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
07/22/2019 🔍09/12/2019 🔍
09/13/2019 🔍
12/19/2023 🔍
Sources
Advisory: usenix.orgStatus: Not defined
CVE: CVE-2019-14236 (🔍)
Entry
Created: 09/13/2019 08:18Updated: 12/19/2023 14:52
Changes: 09/13/2019 08:18 (34), 08/22/2020 14:39 (17), 12/19/2023 14:52 (3)
Complete: 🔍
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