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CVE-2018-7238: A buffer overflow vulnerability exist in the web-based GUI of Schneider Electric's Pelco Sarix Professional…

CVE-2018-7238 is rated critical with a CVSS v3.1 base score of 9.8 and NVD lists 20 affected products, including Schneider Electric Mps110 1 Firmware. 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 buffer overflow vulnerability exist in the web-based GUI of Schneider Electric's Pelco Sarix Professional in all firmware versions prior to 3.29.67 which could allow an unauthenticated, remote attacker to execute arbitrary code.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/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-120: Buffer Copy without Checking Size of Input

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected products

  • Schneider Electric Mps110 1 Firmware: before 3.29.67
  • Schneider Electric Imps110 1er Firmware: before 3.29.67
  • Schneider Electric Ibps110 1er Firmware: before 3.29.67
  • Schneider Electric Imp1110 1 Firmware: before 3.29.67
  • Schneider Electric Imp1110 1e Firmware: before 3.29.67
  • Schneider Electric Imp1110 1er Firmware: before 3.29.67
  • Schneider Electric Ibp1110 1er Firmware: before 3.29.67
  • Schneider Electric Imp219 1 Firmware: before 3.29.67
  • Schneider Electric Imp219 1e Firmware: before 3.29.67
  • Schneider Electric Imp219 1er Firmware: before 3.29.67
  • Schneider Electric Ibp219 1er Firmware: before 3.29.67
  • Schneider Electric Imp319 1 Firmware: before 3.29.67
  • Schneider Electric Imp319 1e Firmware: before 3.29.67
  • Schneider Electric Ibp319 1er Firmware: before 3.29.67
  • Schneider Electric Imp519 1 Firmware: before 3.29.67

References