CVE-2020-25860

CVSS V2 High 7.1 CVSS V3 Medium 6.6
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.
Overview
  • CVE ID
  • CVE-2020-25860
  • Assigner
  • vuln@vdoo.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-21T18:15:15
  • Last Modified Date
  • 2020-12-29T14:36:59
Weakness Enumerations
CWE URL
CWE-367 http://cwe.mitre.org/data/definitions/367.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:pengutronix:rauc:*:*:*:*:*:*:*:* 1 OR 1.5
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:H/Au:S/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • HIGH
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.1
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 6.6
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.7
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-25860
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25860
History
Created Old Value New Value Data Type Notes
2022-05-10 07:29:14 Added to TrackCVE
2022-12-05 18:37:23 2020-12-21T18:15Z 2020-12-21T18:15:15 CVE Published Date updated
2022-12-05 18:37:23 2020-12-29T14:36:59 CVE Modified Date updated
2022-12-05 18:37:23 Analyzed Vulnerability Status updated