CVE-2023-20198criticalbajo ataqueCWE-420

CVE-2023-20198: fallo crítico en Cisco IOS XE Software

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear Cisco IOS XE+ Monitorear IOS XE Web UI

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

100Vexday Risk Score

Corrige ahora. Ella está bajo explotación confirmada por CISA y tiene exploit funcional público.

ssvc Actcvss 10epss 100%
de la publicación al armael mismo día
Publicada en NVD16 oct
1ª PoC19 abr
metasploit16 oct
CISA KEV16 oct
Acción exigida por CISAplazo federal: 2023-10-20

Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA.

En resumen

Una vulnerabilidad crítica en la interfaz web de Cisco IOS XE permite a atacantes obtener acceso no autorizado sin autenticación y ejecutar comandos con privilegios elevados. Esta falla está siendo explotada activamente para crear cuentas de usuario maliciosas e instalar puertas traseras persistentes en dispositivos de red.

Detalle técnico

CVE-2023-20198 es una vulnerabilidad de ejecución remota de código no autenticada en la interfaz web de Cisco IOS XE que permite a los atacantes ejecutar comandos de nivel de privilegio 15 sin autenticación previa. La vulnerabilidad se explota en conjunto con CVE-2023-20273 para lograr escalada de privilegios hasta root e instalación de implantes persistentes en dispositivos afectados.

Resumen generado y traducido por IA a partir de la descripción oficial.

El análisis completo de esta CVE está disponible en portugués →

Cisco is providing an update for the ongoing investigation into observed exploitation of the web UI feature in Cisco IOS XE Software. We are updating the list of fixed releases and adding the Software Checker. Our investigation has determined that the actors exploited two previously unknown issues. The attacker first exploited CVE-2023-20198 to gain initial access and issued a privilege 15 command to create a local user and password combination. This allowed the user to log in with normal user access. The attacker then exploited another component of the web UI feature, leveraging the new local user to elevate privilege to root and write the implant to the file system. Cisco has assigned CVE-2023-20273 to this issue. CVE-2023-20198 has been assigned a CVSS Score of 10.0. CVE-2023-20273 has been assigned a CVSS Score of 7.2. Both of these CVEs are being tracked by CSCwh87343.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Productos afectados
Cisco · Cisco IOS XE Software
PoCs públicas encontradas — 47
githubgithub.com/smokeintheshell/CVE-2023-20198★ 64githubgithub.com/W01fh4cker/CVE-2023-20198-RCE★ 42githubgithub.com/fox-it/cisco-ios-xe-implant-detection★ 41githubgithub.com/Shadow0ps/CVE-2023-20198-Scanner★ 33githubgithub.com/ZephrFish/CVE-2023-20198-Checker★ 33githubgithub.com/Atea-Redteam/CVE-2023-20198★ 20githubgithub.com/Tounsi007/CVE-2023-20198★ 11githubgithub.com/Pushkarup/CVE-2023-20198★ 8githubgithub.com/RevoltSecurities/CVE-2023-20198★ 7githubgithub.com/iveresk/cve-2023-20198★ 6githubgithub.com/sohaibeb/CVE-2023-20198★ 4githubgithub.com/G4sul1n/Cisco-IOS-XE-CVE-2023-20198★ 3githubgithub.com/Vulnmachines/Cisco_CVE-2023-20198★ 2githubgithub.com/alekos3/CVE_2023_20198_Detector★ 2githubgithub.com/mr-r3b00t/CVE-2023-20198-IOS-XE-Scanner★ 2githubgithub.com/IceBreakerCode/CVE-2023-20198★ 1githubgithub.com/securityphoenix/cisco-CVE-2023-20198-tester★ 1githubgithub.com/emomeni/Simple-Ansible-for-CVE-2023-20198★ 1githubgithub.com/kacem-expereo/CVE-2023-20198★ 1githubgithub.com/djayaGit/cve-2023-20198-poc-cisco★ 1githubgithub.com/ohlawd/CVE-2023-20198★ 0githubgithub.com/netbell/CVE-2023-20198-Fix★ 0githubgithub.com/reket99/Cisco_CVE-2023-20198★ 0githubgithub.com/JoyGhoshs/CVE-2023-20198★ 0githubgithub.com/sanan2004/CVE-2023-20198★ 0githubgithub.com/AhmedMansour93/Event-ID-193-Rule-Name-SOC231-Cisco-IOS-XE-Web-UI-ZeroDay-CVE-2023-20198-★ 0githubgithub.com/raystr-atearedteam/CVE-2023-20198-checker★ 0githubgithub.com/DOMINIC471/qub-network-security-cve-2023-20198★ 0githubgithub.com/Arshit01/CVE-2023-20198★ 0githubgithub.com/Religan/CVE-2023-20198★ 0githubgithub.com/Gill-Singh-A/CVE-2023-20198-Exploit★ 0githubgithub.com/gustavorobertux/cisco-cve-2023-20198-checker★ 0githubgithub.com/telly251/forwardnetworksdemo★ 0vulncheckvulncheck.com/xdb/a0a0822430afno verificadovulncheckvulncheck.com/xdb/7cec6c4757e7no verificadovulncheckvulncheck.com/xdb/d7c1f4c82bb7no verificadovulncheckvulncheck.com/xdb/776fa8a7922cno verificadovulncheckvulncheck.com/xdb/1281b61abcb0no verificadovulncheckvulncheck.com/xdb/5ddefc8f6c3ano verificadovulncheckvulncheck.com/xdb/6628d3a046f1no verificadovulncheckvulncheck.com/xdb/cb1d7c5a8232no verificadovulncheckvulncheck.com/xdb/5982ccedfe2bno verificadovulncheckvulncheck.com/xdb/dd7c031f8763no verificadovulncheckvulncheck.com/xdb/ff6ce06a2c5ano verificadovulncheckvulncheck.com/xdb/a1e84c04d078no verificadovulncheckvulncheck.com/xdb/71907c9e119fno verificadovulncheckvulncheck.com/xdb/d0713c585242no verificado
⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
CVEs relacionadas — Cisco IOS XE Software

En el mismo producto, de las más peligrosas a las menos.

CVE-2023-20273HIGHCVE-2023-20273EPSS 92.9%KEVCVE-2025-20352HIGHCVE-2025-20352EPSS 40.6%KEVCVE-2017-6742HIGHCVE-2017-6742EPSS 21.3%KEVCVE-2017-6738HIGHCVE-2017-6738EPSS 10.9%KEVCVE-2023-20109MEDIUMCVE-2023-20109EPSS 2.5%KEVCVE-2021-1384MEDIUMCisco IOx for IOS XE Software Command Injection VulnerabilityEPSS 35.4%