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CVE-2017-8076: TP Link Tl Sg108e Firmware: Inadequate Encryption Strength

CVE-2017-8076 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists TP Link Tl Sg108e 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

On the TP-Link TL-SG108E 1.0, admin network communications are RC4 encoded, even though RC4 is deprecated. This affects the 1.1.2 Build 20141017 Rel.50749 firmware.

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-326: Inadequate Encryption Strength

The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.

Affected products

  • TP Link Tl Sg108e Firmware: 1.1.2

References