Vapor is a web framework for Swift. In Vapor before version 4.40.1, there is a DoS attack against anyone who Bootstraps a metrics backend for their Vapor app. The following is the attack vector: 1. send unlimited requests against a vapor instance with different paths. this will create unlimited counters and timers, which will eventually drain the system. 2. downstream services might suffer from this attack as well by being spammed with error paths. This has been patched in 4.40.1. The `DefaultResponder` will rewrite any undefined route paths for to `vapor_route_undefined` to avoid unlimited counters.
References
Link | Resource |
---|---|
https://github.com/vapor/vapor/commit/e3aa712508db2854ac0ab905696c65fd88fa7e23 | Patch Third Party Advisory |
https://github.com/vapor/vapor/releases/tag/4.40.1 | Release Notes Third Party Advisory |
https://github.com/vapor/vapor/security/advisories/GHSA-gcj9-jj38-hwmc | Third Party Advisory |
https://vapor.codes/ | Product |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-02-26T01:45:23
Updated: 2021-02-26T01:45:23
Reserved: 2020-12-22T00:00:00
Link: CVE-2021-21328
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-02-26T02:15:12.713
Modified: 2021-03-05T19:38:57.617
Link: CVE-2021-21328
JSON object: View
Redhat Information
No data.
CWE