Security Advisory

Missing default timeout on HTTP requests (NC-SA-2020-005)

4th September 2019

Risk level: Low

CVSS v3 Base Score: 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

CWE: Synchronous Access of Remote Resource without Timeout (CWE-1088)

HackerOne report: 592864

Description

Dangling remote share attempts in Nextcloud 16 allow a DNS pollution when running long.

Affected Software

• Nextcloud Server < 17.0.0 (CVE-2019-15616)

Action Taken

The error has been fixed.

Resolution

It is recommended that the Nextcloud Server is upgraded to 17.0.0.

Acknowledgements

The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:

• Joshua Maddux (jdmaddux@gmail.com) - Vulnerability discovery and disclosure.

This advisory is licensed CC BY-SA 4.0.