GHSA-v9w2-v7j9-rjpr

ghsaUSosv

Remote code execution in Eclipse Theia

view advisory published 2021-09-02Licence: CC-BY-4.0

In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a previewed HTML file to trigger an RCE. This exploit only happens if a user previews a malicious file.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-34435US	high8.8	0.60% (48th)	—	2021-09-01
In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside the IDE. But with the way it is made it is possible for a prev…

references

External citations — patches, advisories, analysis.

https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018WEB
https://github.com/eclipse-theia/theiaPACKAGE
https://github.com/eclipse-theia/theia/commit/0761dcf5fe3c14c27432683d42d2c526ad0cfbd5WEB
https://github.com/eclipse-theia/theia/pull/8759WEB
https://nvd.nist.gov/vuln/detail/CVE-2021-34435ADVISORY

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