The arm platform-specific code uses a signed integer comparison when validating system call numbers. An attacker who has obtained code execution within a user thread is able to elevate privileges to that of the kernel. See NCC-ZEP-001 This issue affects: zephyrproject-rtos zephyr version 1.14.0 and later versions. version 2.1.0 and later versions.
Weakness
The product compares two entities in a security-relevant context, but the comparison is incorrect.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Zephyr | Zephyrproject | 1.14.2 (including) | 1.14.2 (including) |
| Zephyr | Zephyrproject | 2.1.0 (including) | 2.1.0 (including) |
Extended Description
This Pillar covers several possibilities:
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/10.html
- https://cwe.mitre.org/data/definitions/120.html
- https://cwe.mitre.org/data/definitions/14.html
- https://cwe.mitre.org/data/definitions/15.html
- https://cwe.mitre.org/data/definitions/182.html
- https://cwe.mitre.org/data/definitions/24.html
- https://cwe.mitre.org/data/definitions/267.html
- https://cwe.mitre.org/data/definitions/3.html
- https://cwe.mitre.org/data/definitions/41.html
- https://cwe.mitre.org/data/definitions/43.html
- https://cwe.mitre.org/data/definitions/44.html
- https://cwe.mitre.org/data/definitions/45.html
- https://cwe.mitre.org/data/definitions/46.html
- https://cwe.mitre.org/data/definitions/47.html
- https://cwe.mitre.org/data/definitions/52.html
- https://cwe.mitre.org/data/definitions/53.html
- https://cwe.mitre.org/data/definitions/6.html
- https://cwe.mitre.org/data/definitions/64.html
- https://cwe.mitre.org/data/definitions/67.html
- https://cwe.mitre.org/data/definitions/7.html
- https://cwe.mitre.org/data/definitions/71.html
- https://cwe.mitre.org/data/definitions/73.html
- https://cwe.mitre.org/data/definitions/78.html
- https://cwe.mitre.org/data/definitions/79.html
- https://cwe.mitre.org/data/definitions/8.html
- https://cwe.mitre.org/data/definitions/80.html
- https://cwe.mitre.org/data/definitions/88.html
- https://cwe.mitre.org/data/definitions/9.html
- https://cwe.mitre.org/data/definitions/92.html
References
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10024
- https://github.com/zephyrproject-rtos/zephyr/pull/23323
- https://github.com/zephyrproject-rtos/zephyr/pull/23498
- https://github.com/zephyrproject-rtos/zephyr/pull/23535
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-30
- https://docs.zephyrproject.org/latest/security/vulnerabilities.html#cve-2020-10024
- https://github.com/zephyrproject-rtos/zephyr/pull/23323
- https://github.com/zephyrproject-rtos/zephyr/pull/23498
- https://github.com/zephyrproject-rtos/zephyr/pull/23535
- https://zephyrprojectsec.atlassian.net/browse/ZEPSEC-30