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CVE-2017-9944: Siemens 7kt Pac1200 Data Manager Firmware: Authentication bypass

CVE-2017-9944 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists Siemens 7kt Pac1200 Data Manager 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

A vulnerability has been identified in Siemens 7KT PAC1200 data manager (7KT1260) in all versions < V2.03. The integrated web server (port 80/tcp) of the affected devices could allow an unauthenticated remote attacker to perform administrative operations over the network.

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-288: Authentication Bypass Using an Alternate Path or Channel

The product requires authentication, but the product has an alternate path or channel that does not require authentication.

CWE-269: Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Affected products

  • Siemens 7kt Pac1200 Data Manager Firmware: before 2.03

References