CVE-2021-31375CWE-20CWE-358

Junos OS: Receipt of a specific BGP update may cause RPKI policy-checks to be bypassed

High · published October 19, 2021

CVSS v3.1
7.2
EPSS
1%
Percentile
56.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00802 · 56.2th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-358 · Improperly Implemented Security Check for Standard
Published
2021-10-19T18:17Z
EPSS history
Timeline
  • 19 OCT 18:17Z
    Junos OS: Receipt of a specific BGP update may cause RPKI policy-checks to be bypassed
    cvelistv5