CVEvulnerability
CVE-2021-45039
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2023-05-31
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-120
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.
Affected configurations
• uniview camera firmware
Related
Weakness · CWE (1)
- CWE-120 Buffer Copy without Checking Size of Input weakness
References
- https://ssd-disclosure.com/ssd-advisory--uniview-preauth-rce/ Exploit, Third Party Advisory
- https://www.uniview.com/About_Us/Security/Notice/202112/920471_140493_0.htm Vendor Advisory
- https://ssd-disclosure.com/ssd-advisory--uniview-preauth-rce/ Exploit, Third Party Advisory
- https://www.uniview.com/About_Us/Security/Notice/202112/920471_140493_0.htm Vendor Advisory