CVE intelligence and bounded remediation

CVE-2020-6286 — Sap Netweaver Application Server Java security vulnerability

Medium CVSS 5.3

The insufficient input path validation of certain parameter in the web service of SAP NetWeaver AS JAVA (LM Configuration Wizard), versions - 7.30, 7.31, 7.40, 7.50, allows an unauthenticated attacker to exploit a method to download zip files to a specific directory, leading to Path Traversal.

Severity
Medium
CVSS
5.3 (3.1)
Published
2020-07-14
CISA KEV
Not currently listed
Ecosystem
java/maven
Weaknesses
CWE-22

Affected products

  • sap / netweaver_application_server_java / 7.30
  • sap / netweaver_application_server_java / 7.31
  • sap / netweaver_application_server_java / 7.40
  • sap / netweaver_application_server_java / 7.50

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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