Quantum Secular Labs / Blog / Advisories

CVE-2018-4923: Adobe Connect: Command injection

CVE-2018-4923 is rated critical with a CVSS v3.0 base score of 9.1 and affects Adobe Connect. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.

Vulnerability description

Adobe Connect versions 9.7 and earlier have an exploitable OS Command Injection. Successful exploitation could lead to arbitrary file deletion.

Severity breakdown

CVSS v3.0 9.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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: None. No loss of confidentiality.
  • 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-78: Improper Neutralization of Special Elements used in an OS Command

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.

Affected products

  • Adobe Connect: up to and including 9.7

References