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Improper Restriction of XML External Entity Reference

CVE-2020-7032

Medium
6.5/10

Summary

An XML external entity (XXE) vulnerability in Avaya WebLM admin interface allows authenticated users to read arbitrary files or conduct server-side request forgery (SSRF) attacks via a crafted DTD in an XML request. Affected versions of Avaya WebLM include: 7.0 through 7.1.3.6 and 8.0 through 8.1.2.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • HIGH
  • HIGH
  • HIGH

CWE-611 - Improper Restriction of XML External Entity Reference

Listed 4th in the 'OWASP Top Ten', XML External Entities (XXE) vulnerability allows attackers to provide an XML input that contains an external entity. When the XML is parsed, it can cause data extraction and manipulation, execution of commands, denial-of-service attacks, and server-side request forgery.

References

Advisory Timeline

  • Published