What is CVE-2021-33505?

CVE-2021-33505 is a high-severity vulnerability in Falco, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-07-15.

How severe is CVE-2021-33505?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-33505 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Privilege escalation in Falco

CVE-2021-33505

A local malicious user can circumvent the Falco detection engine through 0.28.1 by running a program that alters arguments of system calls being executed. Issue is fixed in Falco versions >= 0.29.1.

Vulnerability class: Privilege Escalation

EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Falco
N/a — versions n/a

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

Public proof-of-concept exploits

leodido/demo-cloud-native-ebpf-day

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-33505?: CVE-2021-33505 is a high-severity vulnerability in Falco, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-07-15.
How severe is CVE-2021-33505?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-33505 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.