PT-2018-6843 · Stmicroelectronics · Stm32F0

Johannes Obermaier + 1 · Published 2018-09-12 · Updated 2021-05-04 · CVE-2017-18347

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:L/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions: STMicroelectronics STM32F0 series devices (affected versions not specified)

Description: The issue is related to incorrect access control in RDP Level 1, which allows physically present attackers to extract the device's protected firmware via a special sequence of Serial Wire Debug (SWD) commands. This is due to a race condition between the full initialization of the SWD interface and the setup of flash protection.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2017-18347

Affected Products

Stm32F0

References · 5

• 🔥 https://aisec.fraunhofer.de/en/FirmwareProtection.html · Exploit
• 🔥 https://usenix.org/conference/woot17/workshop-program/presentation/obermaier · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-18347 · Security Note
• https://community.st.com/s/question/0D50X00009Xke7aSAB/readout-protection-cracked-on-stm32 · Vendor Advisory
• https://t.me/cvenotify/14013 · Telegram Post