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CVE-2019-18213

Date: October 23, 2019

XML Language Server (aka lsp4xml) before 0.9.1, as used in Red Hat XML Language Support (aka vscode-xml) before 0.9.1 for Visual Studio and other products, allows XXE via a crafted XML document, with resultant SSRF (as well as SMB connection initiation that can lead to NetNTLM challenge/response capture for password cracking). This occurs in extensions/contentmodel/participants/diagnostics/LSPXMLParserConfiguration.java.

Language: Java

Severity Score

Related Resources (8)

https://www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-eclipse-theia/
https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml
https://github.com/angelozerr/lsp4xml/pull/566
https://nvd.nist.gov/vuln/detail/CVE-2019-18213
https://github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.md#others
https://github.com/angelozerr/lsp4xml/
https://github.com/redhat-developer/vscode-xml/
https://www.mend.io/vulnerability-database/CVE-2019-18213

Severity Score

Weakness Type (CWE)

Improper Restriction of XML External Entity Reference

CWE-611

XML Injection (aka Blind XPath Injection)

CWE-91

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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