CVE-2021-41506

Public Exploit

Description

Xiaongmai AHB7008T-MH-V2, AHB7804R-ELS, AHB7804R-MH-V2, AHB7808R-MS-V2, AHB7808R-MS, AHB7808T-MS-V2, AHB7804R-LMS, HI3518_50H10L_S39 V4.02.R11.7601.Nat.Onvif.20170420, V4.02.R11.Nat.Onvif.20160422, V4.02.R11.7601.Nat.Onvif.20170424, V4.02.R11.Nat.Onvif.20170327, V4.02.R11.Nat.Onvif.20161205, V4.02.R11.Nat.20170301, V4.02.R12.Nat.OnvifS.20170727 is affected by a backdoor in the macGuarder and dvrHelper binaries of DVR/NVR/IP camera firmware due to static root account credentials in the system.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.61%
Vendor Advisory xiongmaitech.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://habr.com/en/post/486856/ third party advisory exploit
https://www.xiongmaitech.com/en/index.php/news/info/12/68 vendor advisory
https://github.com/Snawoot/hisilicon-dvr-telnet third party advisory
https://github.com/tothi/hs-dvr-telnet third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-41506?
CVE-2021-41506 has been scored as a critical severity vulnerability.
How to fix CVE-2021-41506?
To fix CVE-2021-41506, 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-2021-41506 being actively exploited in the wild?
It is possible that CVE-2021-41506 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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