CVE-2018-21036 — Sails

Sails.js before v1.0.0-46 allows attackers to cause a denial of service with a single request because there is no error handler in sails-hook-sockets to handle an empty pathname in a WebSocket request.

01What is this vulnerability?

Sails.js before v1.0.0-46 allows attackers to cause a denial of service with a single request because there is no error handler in sails-hook-sockets to handle an empty pathname in a WebSocket request.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-07-21T13:14:55.000Z
• Last modified: 2024-08-05T12:19:27.445Z

09References

• github.com — https://github.com/balderdashy/sails-hook-sockets/commit/ff02114eaec090ee51db484…
• github.com — https://github.com/balderdashy/sails-hook-sockets/commit/0533a4864b1920fd8fbb528…
• github.com — https://github.com/balderdashy/sails/blob/56f8276f6501a144a03d1f0f28df4ccdb4ad82…
• www.openwall.com — http://www.openwall.com/lists/oss-security/2020/07/19/1