CVE-2021-38384 — CRITICAL (9.8)

Vulnerability Description

Serverless Offline 8.0.0 returns a 403 HTTP status code for a route that has a trailing / character, which might cause a developer to implement incorrect access control, because the actual behavior within the Amazon AWS environment is a 200 HTTP status code (i.e., possibly greater than expected permissions).

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Serverless Offline Project	Serverless Offline	8.0.0

Related Weaknesses (CWE)

CWE-755

References

https://github.com/dherault/serverless-offline/issues/1259ExploitThird Party Advisory
https://github.com/dherault/serverless-offline/issues/1259ExploitThird Party Advisory

FAQ

What is CVE-2021-38384?

CVE-2021-38384 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Serverless Offline 8.0.0 returns a 403 HTTP status code for a route that has a trailing / character, which might cause a developer to implement incorrect access control, because the actual behavior wi...

How severe is CVE-2021-38384?

CVE-2021-38384 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-38384?

Check the references section above for vendor advisories and patch information. Affected products include: Serverless Offline Project Serverless Offline.