CVE-2023-27476

Summary

OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib's XML parser (which supports both lxml and xml.etree) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See GHSA-8h9c-r582-mggc for details.

Affected Software

Weaknesses

• CWE-611: CWE-611: Improper Restriction of XML External Entity Reference

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc
• https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f
• https://securitylab.github.com/advisories/GHSL-2022-131_owslib/
• https://www.debian.org/security/2023/dsa-5426
• https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc
• https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f
• https://securitylab.github.com/advisories/GHSL-2022-131_owslib/
• https://www.debian.org/security/2023/dsa-5426
• https://lists.debian.org/debian-lts-announce/2023/06/msg00032.html

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