What is CVE-2020-16162?

CVE-2020-16162 is a high-severity vulnerability in Ripe Rpki Validator 3, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2020-07-30.

How severe is CVE-2020-16162?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2020-16162 known to be exploited?

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

Vulnerability in Ripe Rpki Validator 3

CVE-2020-16162

An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL presence or CRL staleness in the X509-based RPKI certificate-tree validation procedure allow remote attackers to bypass intended access restrictions by using revoked certificates. NOTE: there may be counterarguments related to backwards compatibility

Vulnerability class: Improper Certificate Validation

EPSS: 0.007 (51.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Ripe Rpki_validator_3
N/a — versions n/a

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

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

Frequently asked questions

What is CVE-2020-16162?: CVE-2020-16162 is a high-severity vulnerability in Ripe Rpki Validator 3, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2020-07-30.
How severe is CVE-2020-16162?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-16162 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.