CVE Vulnerability

CVE-2021-32640

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693 Exploit Mitigation
https://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff Patch Third Party Advisory
https://lists.apache.org/thread.html/rdfa7b6253c4d6271e31566ecd5f30b7ce1b8fb2c89d52b8c4e0f4e30@%3Ccommits.tinkerpop.apache.org%3E Mailing List Patch
https://security.netapp.com/advisory/ntap-20210706-0005/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*
cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*
cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
Information

Published : 2021-05-25 07:15

Updated : 2022-06-04 02:13

NVD link : CVE-2021-32640

Mitre link : CVE-2021-32640

Products Affected
No products.
CWE
CWE-400