NULL pointer dereference in Nicmx Fort Validator

CVE-2024-45235

An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing an Authority Key Identifier extension that lacks the keyIdentifier field. Fort references this pointer without sanitizing it first. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

EPSS: 0.003 (22.8th 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:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-45235?
CVE-2024-45235 is a high-severity vulnerability in Nicmx Fort Validator, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2024-08-24.
How severe is CVE-2024-45235?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-45235 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.