Privilege escalation in Hikvision products - CVE-2017-7921

Vulnerability identifier: #VU9538

CSH Severity: Medium

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-7921

CWE-ID: CWE-287

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a remote attacker to gain elevated privileges on the target system.

The weakness exists due to improper authentication when an application does not adequately or correctly authenticate users. A remote attacker can bypass authentication and gain elevated privileges.

DS-2CD63xx Series
DS-2DFx Series
DS-2CD4xx5 Series
DS- 2CD4x2xFWD Series
DS-2CD2xx2FWD Series
DS-2CD2xx0F-I Series
DS-2CD2xx2F-I Series
Hikvision DVR/NVR Firmware

Install update from vendor's website.

• Exploit #9262 - CVE-2017-7921 (CVE-2017-7921 exploit. Allows admin password retrieval and automatic snapshot download.) (August 28, 2023)
• Exploit #9203 - CVE-2017-7921-EXPLOIT (A PoC exploit for CVE-2017-7921 - Hikvision Camera Series Improper Authentication Vulnerability.) (July 26, 2023)
• Exploit #9175 - hikivision (CVE-2017-7921 EXPLOIT) (July 5, 2023)
• Exploit #8504 - Unauthenticated information disclosure such as configuration, credentials and camera snapshots of a vulnerable Hikvision IP Camera (October 20, 2022)
• Exploit #8393 - Hikvision IP Camera Unauthenticated Password Change Via Improper Authentication Logic (September 23, 2022)

• http://www.hikvision.com/en/Press-Release-details_435_i1478.html
• http://www.hikvision.com/en/Press-Release-details_435_i1504.html

• Privilege escalation in Hikvision Cameras