VulnerabilityAnalyzed
CVE-2020-8193
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
KEVMEDIUM 6.5EPSS 88.4%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- EPSS
- 88.41% probability · 100th percentile
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-284, CWE-287
- Affected
- citrix/application delivery controller firmware · citrix/netscaler gateway firmware · citrix/gateway firmware · citrix/sd-wan wanop
- Source
- support@hackerone.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-8193
References
- http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX276688Vendor Advisory
- http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX276688Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8193US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.