5
CVSSv3

CVE-2021-21266

Published: 01/02/2021 Updated: 05/02/2021
CVSS v2 Base Score: 4 | Impact Score: 2.9 | Exploitability Score: 8
CVSS v3 Base Score: 5 | Impact Score: 1.4 | Exploitability Score: 3.1
VMScore: 356
Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N

Vulnerability Summary

openHAB is a vendor and technology agnostic open source automation software for your home. In openHAB prior to 2.5.12 and 3.0.1 the XML external entity (XXE) attack allows attackers in the same network as the openHAB instance to retrieve internal information like the content of files from the file system. Responses to SSDP requests can be especially malicious. All add-ons that use SAX or JAXB parsing of externally received XML are potentially subject to this kind of attack. In openHAB, the following add-ons are potentially impacted: AvmFritz, BoseSoundtouch, DenonMarantz, DLinkSmarthome, Enigma2, FmiWeather, FSInternetRadio, Gce, Homematic, HPPrinter, IHC, Insteon, Onkyo, Roku, SamsungTV, Sonos, Roku, Tellstick, TR064, UPnPControl, Vitotronic, Wemo, YamahaReceiver and XPath Tranformation. The vulnerabilities have been fixed in versions 2.5.12 and 3.0.1 by a more strict configuration of the used XML parser.

Vulnerability Trend

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openhab openhab

openhab openhab 3.0.0