CVE-2020-25860
highPriorität · verfolgen · 37EPSS 0.014 · 73. PerzentilExploit · PoCDEEUUSEPSS · bewertet 2026-10-27
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.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- Behobenphoenix_contact_psirt
Phoenix Contact strongly recommends updating to the latest firmware mentioned in the list below, which fixes this vulnerability. For EEM-SB370, EEM-SB371 and CHARX control modular the fix will be available until end of Q3 2021. This advisory will be updated as soon the fix is available. | **Product Number** | **Product Name** | **Fixed Version** | |--------------------|------------------------------------|-----------------------------| | 1151412 | AXC F 1152 | 2021.0.5 LTS external link | | 2404267 | AXC F 2152 | 2021.0.5 LTS external link | | 1069208 | AXC F 3152 | 2021.0.5 LTS external link | | 1051328 | RFC 4072S | 2021.0.5 LTS external link | | 1046568 | AXC F 2152 Starterkit | 2021.0.5 LTS external link | | 1188165 | PLCnext Technology Starterkit | 2021.0.5 LTS external link | | 1110435 | SMARTRTU AXC SG | End of Q3 2021 | | 1264328 | SMARTRTU AXC IG | End of Q3 2021 | | 1264327 | ENERGY AXC PU | End of Q3 2021 | | 1158951 | EEM-SB370-C | End of Q3 2021 | | 1158947 | EEM-SB371-C | End of Q3 2021 | | 1139022 | CHARX control modular 3000 | End of Q3 2021 | | 1139022 | CHARX control modular 3050 | End of Q3 2021 | | 1139012 | CHARX control modular 3100 | End of Q3 2021 | | 1138965 | CHARX control modular 3150 | End of Q3 2021 |
- Mitigationphoenix_contact_psirt
Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.3–7.1
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
Exploits (1)
Öffentlicher Proof-of-Concept- und Exploit-Code.
- rauc/rauc-1.5-integrationintegration examples for the CVE-2020-25860 fixPoC · poc_in_github
betroffene Produkte (23)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- VDE-2021-024PHOENIX CONTACT: Security Advisory for PLCNext, SMARTRTU AXC, CHARX control modular and EEM-SB37x2021-05-04csaf · phoenix_contact_psirtDE
The vulnerability is a Time-of-Check-Time-of-Use (CWE-367) issue which allows an attacker with access to the firmware update file to overwrite it after it has been verified (but before installation is completed), which consequently allows installing an arbitrary firmware update, bypassing the cryptographic signature check mechanism.
auch bekannt als (2)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (7)
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vvcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-25860cnnvd
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-frameworkcnnvd
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vvenisa_euvd
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-frameworkenisa_euvd
- https://github.com/rauc/rauc/security/advisories/GHSA-cgf3-h62j-w9vvExploitThird Party Advisorynvd
- https://www.vdoo.com/blog/cve-2020-25860-significant-vulnerability-discovered-rauc-embedded-firmware-update-frameworkExploitThird Party Advisorynvd
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