Quantum Secular Labs / Blog / Advisories

CVE-2017-16725: A Stack-based Buffer Overflow issue was discovered in Xiongmai Technology IP Cameras and DVRs using the…

CVE-2017-16725 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 136 affected products, including Xiongmaitech Ahb7008f8 H 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 Stack-based Buffer Overflow issue was discovered in Xiongmai Technology IP Cameras and DVRs using the NetSurveillance Web interface. The stack-based buffer overflow vulnerability has been identified, which may allow an attacker to execute code remotely or crash the device. After rebooting, the device restores itself to a more vulnerable state in which Telnet is accessible.

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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.

Affected products

  • Xiongmaitech Ahb7008f8 H Firmware: 4.02.r11.3070
  • Xiongmaitech Ahb7008f4 H Firmware: 4.02.r11.3070
  • Xiongmaitech Ahb7008f2 H Firmware: 4.02.r11.3070
  • Xiongmaitech Ahb7008t Mh V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7004t Mh V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7004t H V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7016t Lm V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7008t Lm V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7016t4 Mh V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7016t Mh V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7008t4 H V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7008t H V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7008t4 H V2: _firmware 4.02.r11.7601
  • Xiongmaitech Ahb7032f8 Lm V2 Firmware: 4.02.r11.7601
  • Xiongmaitech Ahb7032f4 Lm V2 Firmware: 4.02.r11.7601

References