CVE-2020-25860
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.
Does this matter?
Lower severity and a low EPSS score (1.42%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.6 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.42% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-367
- Affected
- pengutronix/rauc
- Source
- vuln@vdoo.com
References
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vvExploit, Third Party Advisory
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-frameworkExploit, Third Party Advisory
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vvExploit, Third Party Advisory
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-frameworkExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.