CVE-2023-4966
Unauthenticated sensitive information disclosure
Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations and kill all active and persistent sessions per vendor instructions [https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/] OR discontinue use of the product if mitigations are unavailable.
CISA notes
https://www.netscaler.com/blog/news/cve-2023-4966-critical-security-update-now-available-for-netscaler-adc-and-netscaler-gateway/, https://support.citrix.com/article/CTX579459/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20234966-and-cve20234967 ; https://nvd.nist.gov/vuln/detail/CVE-2023-4966
Description
Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:LAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Citrix | NetScaler ADC | 14.1 to <8.50 13.1 to <49.15 13.0 to <92.19 13.1-FIPS to <37.164 12.1-FIPS to <55.300 12.1-NDcPP to <55.300 |
| Citrix | NetScaler Gateway | 14.1 to <8.50 13.1 to <49.15 13.0 to <92.19 |
References
2 LinksRecord Details
More from Citrix
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Unauthenticated remote arbitrary code execution
Privilege escalation to NetworkService Account access
Related Tool Categories
Tool categories that test for or protect against this vulnerability class.
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