Improper Authorization in Citrix products - CVE-2020-8193
Published: July 8, 2020 / Updated: February 20, 2022
Vulnerability identifier: #VU29585
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8193
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization process.
The vulnerability exists due to improper authorization. A remote authenticated attacker with access to the NSIP can bypass implemented security restrictions.
Affected software
Citrix NetScaler Gateway
SD-WAN 5100 WANOP
SD-WAN 5000 WANOP
SD-WAN 4100 WANOP
SD-WAN 4000 WANOP
Citrix Netscaler ADC
SD-WAN 5100 WANOP
SD-WAN 5000 WANOP
SD-WAN 4100 WANOP
SD-WAN 4000 WANOP
Citrix Netscaler ADC
How to mitigate CVE-2020-8193
Install updates from vendor's website.
Citrix NetScaler Gateway - addressed in versions 10.5.70.18, 11.1.64.14, 12.0.63.21, 12.1.57.18, 13.0.58.30
SD-WAN 5100 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
SD-WAN 5000 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
SD-WAN 4100 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
SD-WAN 4000 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
Citrix Netscaler ADC - addressed in versions 10.5 70.18, 11.1 64.14, 12.0 63.21, 12.1-57.18, 13.0-58.30
SD-WAN 5100 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
SD-WAN 5000 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
SD-WAN 4100 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
SD-WAN 4000 WANOP - addressed in versions 10.2.7, 11.0.3d, 11.1.1a
Citrix Netscaler ADC - addressed in versions 10.5 70.18, 11.1 64.14, 12.0 63.21, 12.1-57.18, 13.0-58.30
Links to Public Exploits and PoC-codes
- Exploit #5652 - Citrix ADC NetScaler - Local File Inclusion (Metasploit) (June 17, 2021)
- Exploit #3454 - CVE-2020-8193 () (July 15, 2020)
- Exploit #3092 - CVE-2020-8193 (Citrix ADC Vulns) (July 15, 2020)
- Exploit #3099 - Citrix-ADC-RCE-CVE-2020-8193 (Citrix ADC从权限绕过到RCE) (July 15, 2020)
- Exploit #3103 - CVE-2020-8193-Citrix-Scanner (Scanning for CVE-2020-8193 - Auth Bypass check) (July 15, 2020)
- Exploit #3107 - citrix_adc_netscaler_lfi (This Metasploit-Framework module can be use to help companies to check the last Citrix vulnerability CVE-2020-8193, CVE-2020-8195 and CVE-2020-8196 (disclosed July 08, 2020).) (July 15, 2020)