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

Configurations

Configuration 1 (hide)

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

History

14 Sep 2021, 13:15

Type	Values Removed	Values Added
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
CPE		cpe:2.3:a:eclipse:theia::::::::
CWE		CWE-22 CWE-611

02 Sep 2021, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-09-02 21:15

Updated : 2023-12-10 13:55

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

{"id": "CVE-2021-34436", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-09-02T21:15:07.977", "references": [{"url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=563174", "tags": ["Vendor Advisory"], "source": "emo@eclipse.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-611"}]}, {"type": "Secondary", "source": "emo@eclipse.org", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-611"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "En Eclipse Theia versiones 0.1.1 hasta 0.2.0, es posible explotar la build predeterminada para obtener una ejecuci\u00f3n de c\u00f3digo remota (y XXE) por medio de la extensi\u00f3n theia-xml-extension. Esta extensi\u00f3n utiliza lsp4xml (recientemente renombrado a LemMinX) para proporcionar soporte de lenguaje para XML. Esto se instala de forma predeterminada"}], "lastModified": "2021-09-14T13:15:15.633", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:eclipse:theia:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "48EB037C-5A65-4DB8-8A8C-305D6A42B0EB", "versionEndIncluding": "0.2.0", "versionStartIncluding": "0.1.1"}], "operator": "OR"}]}], "sourceIdentifier": "emo@eclipse.org"}