PT-2023-7332 · Zyxel · Zyxel Nas542+1

Drew Balfour + 2 · Publicado 2023-11-30 · Atualizado 2025-06-19 · CVE-2023-4473

Positive Technologies (AI Summary)

CVSS v2.0

10

Crítica

Vetor base

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Zyxel NAS326 version V5.21(AAZF.14)C0 Zyxel NAS542 version V5.21(ABAG.11)C0

Description A command injection issue exists in the web server of the Zyxel NAS326 and NAS542 firmware due to the lack of neutralization of special elements used in operating system commands. This could allow a remote attacker to execute arbitrary operating system commands by sending a specially crafted URL to a vulnerable device.

Recommendations For Zyxel NAS326 version V5.21(AAZF.14)C0, update the firmware to a version that includes a fix for this issue. For Zyxel NAS542 version V5.21(ABAG.11)C0, update the firmware to a version that includes a fix for this issue. As a temporary workaround, consider restricting access to the web server to minimize the risk of exploitation.

Correção

OS Command Injection

Enumeração de Fraquezas

CWE-78

Identificadores relacionados

BDU:2023-08362

CVE-2023-4473

Produtos afetados

Zyxel Nas326

Zyxel Nas542

Referências · 17

• https://osv.dev/vulnerability/CVE-2023-4473 · Aviso do Fabricante
• https://t.me/cvenotify/62349 · Publicação no Telegram
• https://t.me/aptreports/19656 · Publicação no Telegram
• https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-2023-4474-authentication-bypass-and-multiple-blind-os-command-injection-vulnerabilities-in-zyxel-s-nas-326-devices · Nota
• https://t.me/cvenotify/62439 · Publicação no Telegram
• https://bdu.fstec.ru/vul/2023-08362 · Nota de Segurança
• https://t.me/aptreports/19537 · Publicação no Telegram
• https://t.me/cvenotify/62438 · Publicação no Telegram
• https://nvd.nist.gov/vuln/detail/CVE-2023-4473 · Nota de Segurança
• https://t.me/true_secator/5152 · Publicação no Telegram
• https://twitter.com/sans_isc/status/1785328552990138803 · Publicação no Twitter
• https://zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products · Aviso do Fabricante
• https://twitter.com/reverseame/status/1760929995864605116 · Publicação no Twitter
• https://t.me/secharvester/14838 · Publicação no Telegram
• https://t.me/thebugbountyhunter/8091 · Publicação no Telegram