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CRITICAL

CVE-2021-45039

CVSS v3

9.8

CRITICAL

Score EPSS

1.1 %

probabilité d’exploitation

CISA KEV

Non

exploitation connue

Exploitation

statut SSVC

Description

Multiple models of the Uniview IP Camera (e.g., IPC_G6103 B6103.16.10.B25.201218, IPC_G61, IPC21, IPC23, IPC32, IPC36, IPC62, and IPC_HCMN) offer an undocumented UDP service on port 7788 that allows a remote unauthenticated attacker to overflow an internal buffer and achieve code execution. By using this buffer overflow, a remote attacker can start the telnetd service. This service has a hardcoded default username and password (root/123456). Although it has a restrictive shell, this can be easily bypassed via the built-in ECHO shell command.

Détails techniques

Publiée le
2023-05-31

Questions fréquentes

Qu’est-ce que CVE-2021-45039 ?

Multiple models of the Uniview IP Camera (e.g., IPC_G6103 B6103.16.10.B25.201218, IPC_G61, IPC21, IPC23, IPC32, IPC36, IPC62, and IPC_HCMN) offer an undocumented UDP service on port 7788 that allows a remote unauthenticated attacker to overflow an internal buffer and achieve code execution. By using this buffer overflow, a remote attacker can start the telnetd service. This service has a hardcoded default username and password (root/123456). Although it has a restrictive shell, this can be easily bypassed via the built-in ECHO shell command.

CVE-2021-45039 est-elle activement exploitée ?

Aucune exploitation active de CVE-2021-45039 n’est confirmée. Le score EPSS est de 1.1 %, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2021-45039 ?

CVE-2021-45039 a un score de base CVSS v3 de 9.8 (gravité CRITICAL).

CVE-2021-45039 touche-t-elle votre environnement ?

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