CVE-2020-15896

Description

An authentication-bypass issue was discovered on D-Link DAP-1522 devices 1.4x before 1.10b04Beta02. There exist a few pages that are directly accessible by any unauthorized user, e.g., logout.php and login.php. This occurs because of checking the value of NO_NEED_AUTH. If the value of NO_NEED_AUTH is 1, the user has direct access to the webpage without any authentication. By appending a query string NO_NEED_AUTH with the value of 1 to any protected URL, any unauthorized user can access the application directly, as demonstrated by bsc_lan.php?NO_NEED_AUTH=1.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.59% Top 20%
Vendor Advisory dlink.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169 patch vendor advisory
https://research.loginsoft.com/bugs/authentication-bypass-in-d-link-firmware-dap-1522/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-15896?
CVE-2020-15896 has been scored as a high severity vulnerability.
How to fix CVE-2020-15896?
To fix CVE-2020-15896, 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-2020-15896 being actively exploited in the wild?
It is possible that CVE-2020-15896 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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