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Cisco Cisco IOS XR Software

CVE-2023-20135
MEDIUM 5.7

En bref

Source
NVD
EPSS
EPSS 0.09 % · centile 1 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
cisco
Statut NVD
Modified

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Description

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use (TOCTOU) race condition when an install query regarding an ISO image is performed during an install operation that uses an ISO image. An attacker could exploit this vulnerability by modifying an ISO image and then carrying out install requests in parallel. A successful exploit could allow the attacker to execute arbitrary code on an affected device.

Faiblesses (CWE)

  • CWE-347 — Vérification incorrecte d'une signature cryptographique
  • CWE-367 — Situation de compétition TOCTOU

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.7CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:Ncisco
CVSS 3.1MEDIUM 5.7CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:NNVD · psirt@cisco.com (Secondary)
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Cisco · Cisco IOS XR Softwareaffected 7.5.3 ; affected 7.5.2 ; affected 7.5.4 ; affected 7.7.1 ; affected 7.7.2 ; affected 7.7.21

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