Auth bypass in Dlink Dir-615

CVE-2017-7405

On the D-Link DIR-615 before v20.12PTb04, once authenticated, this device identifies the user based on the IP address of his machine. By spoofing the IP address belonging to the victim's host, an attacker might be able to take over the administrative session without being prompted for authentication credentials. An attacker can get the victim's and router's IP addresses by simply sniffing the network traffic. Moreover, if the victim has web access enabled on his router and is accessing the web interface from a different network that is behind the NAT/Proxy, an attacker can sniff the network traffic to know the public IP address of the victim's router and take over his session as he won't be prompted for credentials.

Vulnerability class: Broken Authentication

EPSS: 0.016 (73.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-7405?
CVE-2017-7405 is a critical-severity vulnerability in Dlink Dir-615, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-07-07.
How severe is CVE-2017-7405?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-7405 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.