CVE-2021-23241

Public Exploit

Description

MERCUSYS Mercury X18G 1.0.5 devices allow Directory Traversal via ../ in conjunction with a loginLess or login.htm URI (for authentication bypass) to the web server, as demonstrated by the /loginLess/../../etc/passwd URI.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 57.89% Top 5%
Vendor Advisory com.cn Vendor Advisory mercusys.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.mercusys.com/en/ vendor advisory
https://github.com/BATTZION/MY_REQUEST/blob/master/Mercury%20Router%20Web%20Server%20Directory%20Traversal.md third party advisory exploit
https://www.mercurycom.com.cn/product-521-1.html product vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-23241?
CVE-2021-23241 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23241?
To fix CVE-2021-23241, 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-2021-23241 being actively exploited in the wild?
It is possible that CVE-2021-23241 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~58% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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