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CVE-2017-14243: Utstar Wa3002g4 Firmware: Authentication bypass

CVE-2017-14243 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists Utstar Wa3002g4 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

An authentication bypass vulnerability on UTStar WA3002G4 ADSL Broadband Modem WA3002G4-0021.01 devices allows attackers to directly access administrative settings and obtain cleartext credentials from HTML source, as demonstrated by info.cgi, upload.cgi, backupsettings.cgi, pppoe.cgi, resetrouter.cgi, and password.cgi.

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-287: Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected products

  • Utstar Wa3002g4 Firmware: wa3002g4-0021.01

References