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CVE-2017-11495: Phicomm K2(Psg1218) Firmware: Authentication bypass
CVE-2017-11495 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists Phicomm K2(Psg1218) 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
PHICOMM K2(PSG1218) devices V22.5.11.5 and earlier allow unauthenticated remote code execution via a request to an unspecified ASP script; alternatively, the attacker can leverage unauthenticated access to this script to trigger a reboot via an ifType=reboot action.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/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-20: Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected products
- Phicomm K2(Psg1218) Firmware: up to and including 22.5.11.5