NICMx Fort up to 1.6.2 Resource Certificate keyIdentifier null pointer dereference

Summaryinfo

A vulnerability, which was classified as problematic, has been found in NICMx Fort up to 1.6.2. Impacted is an unknown function of the component Resource Certificate Handler. This manipulation of the argument keyIdentifier causes null pointer dereference. This vulnerability is handled as CVE-2024-45235. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in NICMx Fort up to 1.6.2. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Resource Certificate Handler. The manipulation of the argument keyIdentifier with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

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.

It is possible to read the advisory at nicmx.github.io. This vulnerability is known as CVE-2024-45235 since 08/24/2024. The exploitation appears to be difficult. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 216672 (Debian dla-4066 : fort-validator - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.6.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (216672). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• NICMx

Name

• Fort

Version

• 1.6.0
• 1.6.1
• 1.6.2

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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