High severity · published Oct 23, 2019
CVE-2019-18213
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…
8.8
CVSS
2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TX
Theia Xml Extension · Theia Xml Extension Project
All versions, or not specified · source: NVD
WW
Wild Web Developer · Eclipse
All versions, or not specified · source: NVD
XS
Xml Server Project · Xml Language Server Project
before 0.9.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-18213
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-18213
Product
https://github.com/angelozerr/lsp4xml/
Release Notes
https://github.com/angelozerr/lsp4xml/blob/master/CHANGELOG.md#others
Patch
https://github.com/angelozerr/lsp4xml/pull/566
Patch
https://github.com/redhat-developer/vscode-xml/
Third Party Advisory
https://marketplace.visualstudio.com/items?itemName=redhat.vscode-xml
Exploit
https://www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-eclipse-theia/
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