ReDoS in Sec-Websocket-Protocol header (websockets ws)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.82 % · percentile 87 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
Description
ws is an open source WebSocket client and server library for Node.js. A specially crafted value of the `Sec-Websocket-Protocol` header can be used to significantly slow down a ws server. The vulnerability has been fixed in ws@7.4.6 (https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff). In vulnerable versions of ws, the issue can be mitigated by reducing the maximum allowed length of the request headers using the [`--max-http-header-size=size`](https://nodejs.org/api/cli.html#cli_max_http_header_size_size) and/or the [`maxHeaderSize`](https://nodejs.org/api/http.html#http_http_createserver_options_requestlistener) options.
Weaknesses (CWE)
- CWE-400 — Uncontrolled Resource Consumption
References
- https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693
- https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff
- https://lists.apache.org/thread.html/rdfa7b6253c4d6271e31566ecd5f30b7ce1b8fb2c89d52b8c4e0f4e30%40%3Ccommits.tinkerpop.apache.org%3E
- https://security.netapp.com/advisory/ntap-20210706-0005/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | GitHub_M |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-6fc8-4gx4-v693 — ReDoS in Sec-Websocket-Protocol header
European references
- ENISA EUVD · EUVD-2021-0968
- GCVE · GCVE-0-2021-32640
Affected configurations (NVD CPE)
cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*≥ 5.0.0 < 6.2.2cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*≥ 7.0.0 < 7.4.6cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| websockets · ws | affected >= 5.0.0 <= 7.4.5 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |