CVE intelligence and bounded remediation

CVE-2020-8196 — Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability

Medium CVSS 4.3 CISA KEV

Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.

Severity
Medium
CVSS
4.3 (3.1)
Published
2020-07-10
CISA KEV
Known exploited
Ecosystem
operating-system
Weaknesses
CWE-284, CWE-287

Affected products

  • citrix / application_delivery_controller_firmware
  • citrix / netscaler_gateway_firmware
  • citrix / gateway_firmware
  • citrix / sd-wan_wanop

Showing 4 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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