PT-2023-12552 · Uniview · Uniview Ip Camera

Published 2023-05-31 · Updated 2025-01-10 · CVE-2021-45039

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Uniview IP Camera versions prior to the fixed version

Description The issue concerns an undocumented UDP service on port 7788 that allows a remote unauthenticated attacker to overflow an internal buffer and achieve code execution. By exploiting this buffer overflow, a remote attacker can start the telnetd service, which has a hardcoded default username and password (root/123456). Although the telnetd service has a restrictive shell, it can be easily bypassed via the built-in ECHO shell command.

Recommendations For Uniview IP Camera, update to a version that fixes the undocumented UDP service vulnerability on port 7788 to prevent buffer overflow and code execution. As a temporary workaround, consider disabling the telnetd service until a patch is available. Restrict access to the UDP port 7788 to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-45039

Affected Products

Uniview Ip Camera

References · 4

• 🔥 https://ssd-disclosure.com/ssd-advisory--uniview-preauth-rce · Exploit
• https://uniview.com/About_Us/Security/Notice/202112/920471_140493_0.htm · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45039 · Security Note
• https://t.me/cvenotify/107065 · Telegram Post