CVE-2022-20694

Cisco IOS XE Software Border Gateway Protocol Resource Public Key Infrastructure Denial of Service Vulnerability

MEDIUM 6.8

En bref

Source
NVD
EPSS
EPSS 1.18 % · centile 67 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
cisco
Statut NVD
Modified

Description

A vulnerability in the implementation of the Resource Public Key Infrastructure (RPKI) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Border Gateway Protocol (BGP) process to crash, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of a specific RPKI to Router (RTR) Protocol packet header. An attacker could exploit this vulnerability by compromising the RPKI validator server and sending a specifically crafted RTR packet to an affected device. Alternatively, the attacker could use man-in-the-middle techniques to impersonate the RPKI validator server and send a crafted RTR response packet over the established RTR TCP connection to the affected device. A successful exploit could allow the attacker to cause a DoS condition because the BGP process could constantly restart and BGP routing could become unstable.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco
CVSS 3.1MEDIUM 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HNVD · psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 6.8CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 7.1AV:N/AC:M/Au:N/C:N/I:N/A:CNVD · nvd@nist.gov (Primary)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Cisco · Cisco IOS XE Softwareaffected n/a

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD