CVE

CVE-2021-31375

Date: (C)2021-10-20   (M)2023-12-22

An Improper Input Validation vulnerability in routing process daemon (RPD) of Juniper Networks Junos OS devices configured with BGP origin validation using Resource Public Key Infrastructure (RPKI), allows an attacker to send a specific BGP update which may cause RPKI policy-checks to be bypassed. This, in turn, may allow a spoofed advertisement to be accepted or propagated. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S18; 15.1 versions prior to 15.1R7-S9; 17.2 versions prior to 17.2R3-S3; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S3; 18.3 versions prior to 18.3R3-S1; 18.4 versions prior to 18.4R3; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R2.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:		CVSS V2 Severity:
CVSS Score : 5.3		CVSS Score : 5.0
Exploit Score: 3.9		Exploit Score: 10.0
Impact Score: 1.4		Impact Score: 2.9
CVSS V3 Metrics:		CVSS V2 Metrics:
Attack Vector: NETWORK		Access Vector: NETWORK
Attack Complexity: LOW		Access Complexity: LOW
Privileges Required: NONE		Authentication: NONE
User Interaction: NONE		Confidentiality: NONE
Scope: UNCHANGED		Integrity: PARTIAL
Confidentiality: NONE		Availability: NONE
Integrity: LOW
Availability: NONE

Reference:

https://kb.juniper.net/JSA11240