PT-2021-19621 · Suse · Suse Rancher K3S+1

Chris Wayne · Published 2021-07-28 · Updated 2022-11-14 · CVE-2021-32001

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: SUSE Rancher K3s versions v1.19.12+k3s1 through v1.21.2+k3s1 and prior versions RKE2 versions v1.19.12+rke2r1 through v1.21.2+rke2r1 and prior versions

Description: A Missing Encryption of Sensitive Data issue allows any user with direct access to the datastore, or a copy of a datastore backup, to extract the cluster's confidential keying material (cluster certificate authority private keys, secrets encryption configuration passphrase, etc.) and decrypt it, without having to know the token value.

Recommendations: For SUSE Rancher K3s versions v1.19.12+k3s1 through v1.21.2+k3s1 and prior versions, consider restricting access to the datastore and backups to minimize the risk of exploitation. For RKE2 versions v1.19.12+rke2r1 through v1.21.2+rke2r1 and prior versions, consider implementing additional security measures to protect the cluster's confidential keying material. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Encryption of Sensitive Data

Weakness Enumeration

CWE-311

Related Identifiers

CVE-2021-32001

Affected Products

Rke2

Suse Rancher K3S

References · 7

• https://osv.dev/vulnerability/CVE-2021-32001 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32001 · Security Note
• https://bugzilla.suse.com/show_bug.cgi?id=1188453 · Vendor Advisory
• https://t.me/cvenotify/18233 · Telegram Post
• https://t.me/cvenotify/34306 · Telegram Post
• https://t.me/cibsecurity/26554 · Telegram Post
• https://t.me/cvenotify/37647 · Telegram Post