PT-2019-2415 · Cisco · Cisco Nx-Os+1

CVE-2019-1809 · Publicado 2019-05-15 · Atualizado 2023-03-24

Positive Technologies (AI Summary)

CVSS v3.1

6.7

Média

Vetor base

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Cisco NX-OS Software (affected versions not specified)

Description A vulnerability in the Image Signature Verification feature could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The issue is due to improper verification of digital signatures for patch images. An attacker could exploit this by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Verification of Cryptographic Signature

Enumeração de Fraquezas

CWE-347

Identificadores relacionados

BDU:2019-02193

CVE-2019-1809

Produtos afetados

Cisco Nx-Os

Cisco Nexus

Referências · 7

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2019-1809 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2019-1809 · Aviso do Fabricante
• http://securityfocus.com/bid/108375 · Nota
• https://securityfocus.com/bid/108375 · Nota
• https://t.me/cvenotify/46780 · Publicação no Telegram
• https://bdu.fstec.ru/vul/2019-02193 · Nota de Segurança