CVE-2021-34435

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..

CVSS v3 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018	Exploit Patch Vendor Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018	Exploit Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:10

Type	Values Removed	Values Added
References	~~() https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018 - Exploit, Patch, Vendor Advisory~~	() https://bugs.eclipse.org/bugs/show_bug.cgi?id=568018 - Exploit, Patch, Vendor Advisory

Information

Published : 2021-09-01 18:15

Updated : 2024-11-21 06:10

NVD link : CVE-2021-34435

Mitre link : CVE-2021-34435

CVE.ORG link : CVE-2021-34435

JSON object : View

Products Affected

eclipse

theia

CWE

CWE-942

Permissive Cross-domain Policy with Untrusted Domains

CWE-346

Origin Validation Error

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