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CVE-2018-17564: A Malformed Input String to /cgi-bin/delete_CA on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers…

CVE-2018-17564 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists 6 affected products, including Grandstream Gxp1610 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 Malformed Input String to /cgi-bin/delete_CA on Grandstream GXP16xx VoIP 1.0.4.128 phones allows attackers to delete configuration parameters and gain admin access to the device.

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.

Affected products

  • Grandstream Gxp1610 Firmware: 1.0.4.128
  • Grandstream Gxp1615 Firmware: 1.0.4.128
  • Grandstream Gxp1620 Firmware: 1.0.4.128
  • Grandstream Gxp1625 Firmware: 1.0.4.128
  • Grandstream Gxp1628 Firmware: 1.0.4.128
  • Grandstream Gxp1630 Firmware: 1.0.4.128

References