Improper RPKI Origin Validation

2024-02-0514:19:17

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

rpki origin validation

cloudflare cfrpki

invalid vrp

maxlength

rtr session termination

bgp routing churn

denial of service

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

High

EPSS

0.001

Percentile

45.4%

JSON

github.com/cloudflare/cfrpki is vulnerable to Improper RPKI Origin Validation. The vulnerability is caused by emitting an invalid VRP MaxLength value through validator/lib/roa.go causing RTR sessions to terminate. This flaw allows an attacker disable RPKI Origin Validation which can result in BGP routing churn and Denial of Service (DoS).