CVEvulnerability
CVE-2020-25860
6.6 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-12-21
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.6 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.1 HIGH — AV:N/AC:H/Au:S/C:C/I:C/A:C
- Weaknesses
- CWE-367
Description
The install.c module in the Pengutronix RAUC update client prior to version 1.5 has a Time-of-Check Time-of-Use vulnerability, where signature verification on an update file takes place before the file is reopened for installation. An attacker who can modify the update file just before it is reopened can install arbitrary code on the device.
Affected configurations
• pengutronix rauc (< 1.5)
Related
Weakness · CWE (1)
- CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition weakness
References
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vv Exploit, Third Party Advisory
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-framework Exploit, Third Party Advisory
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vv Exploit, Third Party Advisory
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-framework Exploit, Third Party Advisory