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Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vulnerability (Cisco Cisco TelePresence Video Communication Server (VCS) Expressway)

CVE-2021-34715
MEDIUM 4.7

En bref

Source
NVD
EPSS
EPSS 1.06 % · centile 64 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
cisco
Statut NVD
Modified

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Description

A vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute code with internal user privileges on the underlying operating system. The vulnerability is due to insufficient validation of the content of upgrade packages. An attacker could exploit this vulnerability by uploading a malicious archive to the Upgrade page of the administrative web interface. A successful exploit could allow the attacker to execute code with user-level privileges (the _nobody account) on the underlying operating system.

Faiblesses (CWE)

  • CWE-347 — Vérification incorrecte d'une signature cryptographique

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:Lcisco
CVSS 3.1MEDIUM 4.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:LNVD · psirt@cisco.com (Secondary)
CVSS 3.1HIGH 7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 9.0AV:N/AC:L/Au:S/C:C/I:C/A:CNVD · nvd@nist.gov (Primary)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Cisco · Cisco TelePresence Video Communication Server (VCS) Expresswayaffected 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