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 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 v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

6.5 MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P

EPSS

1.98% chance of exploitation in the next 30 days, 79th percentile

Published

2019-10-23

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://www.shielder.it/blog/dont-open-that-xml-xxe-to-rce-in-xml-plugins-for-vs-code-ecl…

References

• CVE Record
• NVD entry

Related

• CVE-2019-18212
• CVE-2019-18217
• CVE-2019-1821
• CVE-2019-18276
• CVE-2019-18203
• CVE-2019-18277