Vulnerability · Published Aug 9, 2024 · Assigned by GitHub_M
CVE-2024-42467CometVisu Backend for openHAB affected by SSRF/XSS
Critical 10.0
In plain English
A critical-severity server-side request forgery in openhab-webui from openhab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
openHAB, a provider of open-source home automation software, has add-ons including the visualization add-on CometVisu. In versions 3.4.0.M4 through 4.2.0,, the proxy endpoint of openHAB's CometVisu add-on can be accessed without authentication. This proxy-feature can be exploited as Server-Side Request Forgery (SSRF) to induce GET HTTP requests to internal-only servers, in case openHAB is exposed in a non-private network. Furthermore, this proxy-feature can also be exploited as a Cross-Site Scripting (XSS) vulnerability, as an attacker is able to re-route a request to their server and return a page with malicious JavaScript code. Since the browser receives this data directly from the openHAB CometVisu UI, this JavaScript code will be executed with the origin of the CometVisu UI. This allows an attacker to exploit call endpoints on an openHAB server even if the openHAB server is located in a private network. (e.g. by sending an openHAB admin a link that proxies malicious JavaScript.) This issue may lead up to Remote Code Execution (RCE) when chained with other vulnerabilities. Users should upgrade to version 4.2.1 of the CometVisu add-on of openHAB to receive a patch.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.openhab.ui.bundles:org.openhab.ui.cometvisu | 4.2.1 | GHSA-v7gr-mqpj-wwh3 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| openhab | openhab-webui | >= 3.4.0.M4, < 4.2.1 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
References
- https://github.com/openhab/openhab-webui/security/advisories/GHSA-v7gr-mqpj-wwh3 x_refsource_CONFIRM
- https://github.com/openhab/openhab-webui/commit/531dabfa8311a50d2e740bf4f2b4f2400e78646c#diff-b9a920cefe5f9b2ee3615cb29f88bcad0535012c2ae2535bd12e47d6d9395b6a x_refsource_MISC
- https://github.com/openhab/openhab-webui/commit/630e8525835c698cf58856aa43782d92b18087f2 x_refsource_MISC
- https://github.com/openhab/openhab-webui/blob/1c03c60f84388b9d7da0231df2d4ebb1e17d3fcf/bundles/org.openhab.ui.cometvisu/src/main/java/org/openhab/ui/cometvisu/internal/backend/rest/ProxyResource.java#L83 x_refsource_MISC