CVE-2021-34436

In Eclipse Theia 0.1.1 to 0.2.0, it is possible to exploit the default build to obtain remote code execution (and XXE) via the theia-xml-extension. This extension uses lsp4xml (recently renamed to LemMinX) in order to provide language support for XML. This is installed by default.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174	Vendor Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174	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=563174 - Vendor Advisory~~	() https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174 - Vendor Advisory

14 Sep 2021, 13:15

Type	Values Removed	Values Added
CWE		CWE-611 CWE-22
CPE		cpe:2.3:a:eclipse:theia::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
References	~~(CONFIRM) https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174 -~~	(CONFIRM) https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174 - Vendor Advisory

02 Sep 2021, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-09-02 21:15

Updated : 2024-11-21 06:10

NVD link : CVE-2021-34436

Mitre link : CVE-2021-34436

CVE.ORG link : CVE-2021-34436

JSON object : View

Products Affected

eclipse

theia

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-611

Improper Restriction of XML External Entity Reference

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