SB2020071306 - Denial of service in SockJS for Node
Published: July 13, 2020
Security Bulletin ID
SB2020071306
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2020-7693)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources within the "Upgrade" header with the value "websocket". A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://github.com/andsnw/sockjs-dos-py
- https://github.com/sockjs/sockjs-node/commit/dd7e642cd69ee74385825816d30642c43e051d16
- https://github.com/sockjs/sockjs-node/issues/252
- https://github.com/sockjs/sockjs-node/pull/265
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-575448
- https://snyk.io/vuln/SNYK-JS-SOCKJS-575261