Vulnerability · Published May 24, 2021 · Assigned by GitHub_M

CVE-2021-32624Private Field data leak

High 7.5

In plain English

A high-severity information exposure in keystone-5 from keystonejs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.9%top 41.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Keystone 5 is an open source CMS platform to build Node.js applications. This security advisory relates to a newly discovered capability in our query infrastructure to directly or indirectly expose the values of private fields, bypassing the configured access control. This is an access control related oracle attack in that the attack method guides an attacker during their attempt to reveal information they do not have access to. The complexity of completing the attack is limited by some length-dependent behaviors and the fidelity of the exposed information. Under some circumstances, field values or field value meta data can be determined, despite the field or list having `read` access control configured. If you use private fields or lists, you may be impacted. No patches exist at this time. There are no workarounds at this time

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@keystonejs/keystone	no fix listed	GHSA-27g8-r9vw-765x

Affected products (as reported)

Vendor	Product	Versions
keystonejs	keystone-5	<= 19.3.2

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/keystonejs/keystone-5/security/advisories/GHSA-27g8-r9vw-765x x_refsource_CONFIRM