External risk intelligence

Hikvision Camera Improper Authentication Vulnerability.

CVE advisoryKnown Exploit

CVE-2017-7921

An improper authentication vulnerability affects certain Hikvision camera devices, potentially allowing unauthorized access to sensitive information and system control. This risk is elevated as the vulnerability is actively exploited in the wild and listed on the CISA Known Exploited Vulnerabilities catalog. Organizati

4Halo Surface Signal

Authentication Bypass

Hikvision Ds 2cd2032 I Firmware

External exposure likelihood

Halo Surface Signal score for CVE-2017-7921

This CVE affects various IP cameras and surveillance devices. Such hardware is frequently deployed with web-based management interfaces that are often exposed directly to the internet or accessible through network gateways for remote monitoring, making the attack surface commonly reachable in many real-world deployments.

Horizon Alert

Summary of the vulnerability and why it matters

Certain Hikvision IP camera devices are susceptible to an improper authentication vulnerability. This flaw allows unauthorized individuals to gain elevated privileges within the system, potentially leading to access to sensitive data. The compromised systems could experience unauthorized access and data breaches.

  • Vulnerable Hikvision IP camera devices
  • Inadequate user authentication
  • Unauthorized system access and data exposure

Attack Path

How an attacker could exploit the issue

The Improper Authentication vulnerability allows an unauthorized user to escalate privileges within affected Hikvision devices. This could lead to unauthorized access to sensitive information stored on or managed by these systems. The attack vector leverages an inadequate authentication mechanism within the device's application.

  • Exposure: Network-accessible devices
  • Attacker Access: Unauthenticated access
  • Trigger: Authentication bypass
  • Impact: Privilege escalation, data access

Live Threat

Current exploitation, exposure, and threat context

This vulnerability allows unauthorized users to gain higher privileges on affected systems, potentially accessing sensitive information. Attackers with a moderate skill level could exploit this weakness. Organizations should consider this a high-priority issue due to the potential for significant business risk.

  • Attacker skill: Moderate
  • Access: Network access
  • Business risk: High

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An improper authentication vulnerability has been identified in multiple Hikvision devices. This issue could allow an unauthorized user to gain elevated privileges and access sensitive information. Affected organizations should take immediate steps to identify and address potential exposure risks associated with these devices.

  • Locate all affected devices.
  • Isolate affected devices or restrict access.
  • Apply vendor updates and verify fixes.
  • Monitor for related security events.

Frequently asked questions

What are Hikvision DS-2CD2xx2F-I Series cameras used for?

Hikvision DS-2CD2xx2F-I Series cameras are network cameras primarily used for video surveillance and security purposes. They capture video feeds that can be accessed remotely or recorded for later review.

What is CVE-2017-7921 classified as?

CVE-2017-7921 is classified as an Improper Authentication vulnerability (CWE-287). This means the device improperly verifies user identity, potentially allowing unauthorized actions and privilege escalation.

How can CVE-2017-7921 be exploited?

This vulnerability can be exploited by sending specially crafted HTTP requests with a specific query string, such as '?auth=YWRtaW46MTEK', which is a Base64 encoded form of 'admin:11'. This bypasses authentication and grants administrative privileges.

What is the relevance of CVE-2017-7921 according to Halo Surface Signal?

According to Halo Surface Signal, this CVE is relevant because it affects various IP cameras and surveillance devices, which commonly have web interfaces exposed to the internet, increasing the attack surface.

What are the recommended actions for addressing CVE-2017-7921?

The primary recommended action is to update the device firmware to the latest version provided by Hikvision. Network segmentation, isolating devices on a separate VLAN, and disabling remote administration features are also advised. If devices are too old to receive updates, they should be replaced.

References