CVE-2024-33522: Privilege Escalation (CVSS 6.7)

Description

In vulnerable versions of Calico (v3.27.2 and below), Calico Enterprise (v3.19.0-1, v3.18.1, v3.17.3 and below), and Calico Cloud (v19.2.0 and below), an attacker who has local access to the Kubernetes node, can escalate their privileges by exploiting a vulnerability in the Calico CNI install binary. The issue arises from an incorrect SUID (Set User ID) bit configuration in the binary, combined with the ability to control the input binary, allowing an attacker to execute an arbitrary binary with elevated privileges.

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CVSS v3.1 Score

6.7

MEDIUM

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

Weakness Type (CWE)

CWE-269 CWE-269

References

Other References

https://github.com/projectcalico/calico/issues/7981 https://github.com/projectcalico/calico/pull/8447 https://github.com/projectcalico/calico/pull/8517 https://www.tigera.io/security-bulletins-tta-2024-001/ https://github.com/projectcalico/calico/issues/7981 https://github.com/projectcalico/calico/pull/8447 https://github.com/projectcalico/calico/pull/8517 https://www.tigera.io/security-bulletins-tta-2024-001/

Frequently Asked Questions

What is CVE-2024-33522? +

In vulnerable versions of Calico (v3.27.2 and below), Calico Enterprise (v3.19.0-1, v3.18.1, v3.17.3 and below), and Calico Cloud (v19.2.0 and below), an attacker who has local access to the Kubernetes node, can escalate their privileges by exploiting a vulnerability in the Calico CNI install binary. The issue arises from an incorrect SUID (Set User ID) bit configuration in the binary, combined with the ability to control the input binary, allowing an attacker to execute an arbitrary binary with elevated privileges. It has a CVSS v3.1 base score of 6.7 (MEDIUM).

How severe is CVE-2024-33522? +

CVE-2024-33522 has a CVSS v3.1 score of 6.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2024-33522? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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