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CVE-2018-6692: Belkin Wemo Insight Smart Plug Firmware: Buffer overflow
CVE-2018-6692 is rated critical with a CVSS v3.1 base score of 10.0 and NVD lists Belkin Wemo Insight Smart Plug Firmware as the affected product. 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
Stack-based Buffer Overflow vulnerability in libUPnPHndlr.so in Belkin Wemo Insight Smart Plug allows remote attackers to bypass local security protection via a crafted HTTP post packet.
Severity breakdown
CVSS v3.1 10.0: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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: Changed. Impact reaches beyond the vulnerable component to other resources.
- 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-787: Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected products
- Belkin Wemo Insight Smart Plug Firmware: all versions listed by NVD