Home/CVE/Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
CVE

CVE-2020-8193

Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability

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 allows unauthenticated access to certain URL endpoints.

MEDIUM · CVSS 6.5 ⚠ CISA KEV EPSS 0.94394
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 0% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬢

Required Remediation

Apply updates per vendor instructions.

⬡

Weakness Classification

CWE-284Improper Access Control
CWE-287Improper Authentication
▤

Affected Products & Versions

13
citrix application delivery controller firmware>= 10.5 and < 10.5-70.18
citrix application delivery controller firmware>= 11.1 and < 11.1-64.14
citrix application delivery controller firmware>= 12.0 and < 12.0-63.21
citrix application delivery controller firmware>= 12.1 and < 12.1-57.18
citrix application delivery controller firmware>= 13.0 and < 13.0-58.30
citrix netscaler gateway firmware>= 10.5 and < 10.5-70.18
citrix netscaler gateway firmware>= 11.1 and < 11.1-64.14
citrix netscaler gateway firmware>= 12.0 and < 12.0-63.21
⚠

Public Exploits & PoCs

2
nucleiCitrix - Local File Inclusionmedium
pocpacketstormsecurity.com · Citrix-ADC-NetScaler-Local-File-Inclusion.htmlpacketstormsecurity.com
◈

Detection Rules (IDS/IPS)

1
et-openET EXPLOIT Possible Citrix Authentication Bypass Attempt Inbound (CVE-2020-8193)attempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Jul 2020 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisaKEV-CVE-2020-8193
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.citrix.com/article/CTX276688Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8193US Government Resource
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