d-link DIR-842 Security Vulnerabilities

3 Vulnerabilities
Description

An authentication brute-force protection mechanism bypass in telnetd in D-Link Router model DIR-842 firmware version 3.0.2 allows a remote attacker to circumvent the anti-brute-force cool-down delay period via a timing-based side-channel attack

Impacted versions: -

Base Score: 0.0, Severity: NA, ID: CVE-2021-27342, Last Modified: 2021-05-17T13:15:00Z

References

Advisory

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-842 3.13B05 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HNAP GetCAPTCHAsetting requests. The issue results from the lack of proper handling of sessions. An attacker can leverage this vulnerability to execute arbitrary code in the context of the device. Was ZDI-CAN-10083.

Impacted versions: -

Base Score: 0.0, Severity: NA, ID: CVE-2020-15632, Last Modified: 2020-07-23T21:17:00Z

References

Advisory

A stack-based buffer overflow was found on the D-Link DIR-842 REVC with firmware v3.13B09 HOTFIX due to the use of strcpy for LOGINPASSWORD when handling a POST request to the /MTFWU endpoint.

Impacted versions: -

Base Score: 0.0, Severity: NA, ID: CVE-2020-8962, Last Modified: 2020-02-13T05:15:00Z

References

Advisory
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