CVE Vulnerability

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

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

References
Link Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174 Vendor Advisory
Configurations

Configuration 1

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

Published : 2021-09-02 09:15

Updated : 2021-09-14 01:15

NVD link : CVE-2021-34436

Mitre link : CVE-2021-34436

Products Affected
No products.
CWE
CWE-22

CWE-611

Improper Restriction of XML External Entity Reference