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CVE-2017-11436: D-Link Dir 615: Hard-coded credentials or backdoor
CVE-2017-11436 is rated critical with a CVSS v3.1 base score of 9.8 and affects D-Link Dir 615. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
D-Link DIR-615 before v20.12PTb04 has a second admin account with a 0x1 BACKDOOR value, which might allow remote attackers to obtain access via a TELNET connection.
Severity breakdown
CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-798: Use of Hard-coded Credentials
The product contains hard-coded credentials, such as a password or cryptographic key.
Affected products
- D-Link Dir 615: up to and including 20.12ptb01