// For flags

CVE-2021-41531

Invalid RPKI data could disable Route Origin Validation on RTR clients.

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.

NLnet Labs Routinator versiones anteriores a 0.10.0, produce una carga útil RTR no válida si una CA RPKI usa valores demasiado grandes en el parámetro de longitud máxima en un ROA. Esto conlleva a que los clientes RTR, como los enrutadores, rechacen el conjunto de datos RPKI, deshabilitando efectivamente la Comprobación del Origen de Ruta

*Credits: We would like to thank Job Snijders for reporting the issue.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-09-20 CVE Reserved
  • 2021-09-21 CVE Published
  • 2024-06-06 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-1288: Improper Validation of Consistency within Input
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://www.nlnetlabs.nl/downloads/routinator/CVE-2021-41531.txt 2021-10-05
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nlnetlabs
Search vendor "Nlnetlabs"
 Routinator
Search vendor "Nlnetlabs" for product "Routinator"
 < 0.10.0
Search vendor "Nlnetlabs" for product "Routinator" and version " < 0.10.0"
-
Affected