Very High
CVE-2020-8195
CVE-2020-8195
Description
Improper input validation 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.
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Technical Analysis
This is an update based on the assessment provided in the more general topic for the Citrix vulns disclosed in https://support.citrix.com/article/CTX276688 which include this CVE. As API queries to this CVE do not contain this data, reflecting it in this topic.
Link to assessment:
https://attackerkb.com/assessments/50e7e3c5-644c-46ae-b650-1ef45cec22ad
Link to relevant url provided in the assessment:
https://research.nccgroup.com/2020/07/10/rift-citrix-adc-vulnerabilities-cve-2020-8193-cve-2020-8195-and-cve-2020-8196-intelligence/
Additional link which provides a PoC:
https://github.com/Zeop-CyberSec/citrix_adc_netscaler_lfi
Also, as mentioned by @gwillcox-r7 already, it is included in the Oct 20 NSA advisory.
Technical Analysis
This is now supposedly being exploited in the wild by Chinese state actors according to this NSA announcement: https://media.defense.gov/2020/Oct/20/2002519884/-1/-1/0/CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDF
CVSS V3 Severity and Metrics
General Information
Vendors
- citrix
Products
- application delivery controller firmware,
- gateway firmware,
- gateway plug-in for linux,
- netscaler gateway firmware,
- sd-wan wanop
References
