CVE-2017-7921

Description

An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2xx0F-I Series V5.2.0 build 140721 to V5.4.0 Build 160401, DS-2CD2xx2FWD Series V5.3.1 build 150410 to V5.4.4 Build 161125, DS-2CD4x2xFWD Series V5.2.0 build 140721 to V5.4.0 Build 160414, DS-2CD4xx5 Series V5.2.0 build 140721 to V5.4.0 Build 160421, DS-2DFx Series V5.2.0 build 140805 to V5.4.5 Build 160928, and DS-2CD63xx Series V5.0.9 build 140305 to V5.3.5 Build 160106 devices. The improper authentication vulnerability occurs when an application does not adequately or correctly authenticate users. This may allow a malicious user to escalate his or her privileges on the system and gain access to sensitive information.

Category

10.0
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 94.14% Top 5%
Vendor Advisory hikvision.com
Affected: n/a Hikvision Cameras
Published at:
Updated at:

References

Link Tags
https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01 third party advisory us government resource
http://www.securityfocus.com/bid/98313 vdb entry third party advisory
https://ghostbin.com/paste/q2vq2
http://www.hikvision.com/us/about_10805.html patch vendor advisory
https://www.hikvision.com/cn/support/CybersecurityCenter/SecurityNotices/20170314/
https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification--privilege-escalating-vulnerability-in-cer/
https://www.hikvision.com/us-en/support/document-center/special-notices/privilege-escalating-vulnerability-in-certain-hikvision-ip-cameras/

Frequently Asked Questions

What is the severity of CVE-2017-7921?
CVE-2017-7921 has been scored as a critical severity vulnerability.
How to fix CVE-2017-7921?
To fix CVE-2017-7921, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7921 being actively exploited in the wild?
It is possible that CVE-2017-7921 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7921?
CVE-2017-7921 affects n/a Hikvision Cameras.
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