CVEs / CVE-2023-6548
CVE-2023-6548: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
- Known exploited in the CISA KEV catalog since 17 Jan 2024
- high 8.8 CVSS 3.1 (NVD)
- EPSS 3.19% chance of exploitation in the next 30 days, higher than 88% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Citrix NetScaler ADC and NetScaler Gateway contain a code injection vulnerability that allows for authenticated remote code execution on the management interface with access to NSIP, CLIP, or SNIP.
Description
Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Cloud Software Group NetScaler ADC | from 14.1, before 12.35 | 12.35 |
| Cloud Software Group NetScaler ADC | from 13.1, before 51.15 | 51.15 |
| Cloud Software Group NetScaler ADC | from 13.0, before 92.21 | 92.21 |
| Cloud Software Group NetScaler ADC | from 13.1-FIPS, before 37.176 | 37.176 |
| Cloud Software Group NetScaler ADC | from 12.1-FIPS, before 55.302 | 55.302 |
| Cloud Software Group NetScaler ADC | from 12.1-NDcPP, before 55.302 | 55.302 |
| Cloud Software Group NetScaler Gateway | from 14.1, before 12.35 | 12.35 |
| Cloud Software Group NetScaler Gateway | from 13.1, before 51.15 | 51.15 |
| Cloud Software Group NetScaler Gateway | from 13.0, before 92.21 | 92.21 |
| citrix netscaler_application_delivery_controller | from 14.1, before 14.1-12.35 | 14.1-12.35 |
| citrix netscaler_application_delivery_controller | from 13.1, before 13.1-51.15 | 13.1-51.15 |
| citrix netscaler_application_delivery_controller | from 13.0, before 13.0-92.21 | 13.0-92.21 |
| citrix netscaler_application_delivery_controller | from 13.1, before 13.1-37.176 | 13.1-37.176 |
| citrix netscaler_application_delivery_controller | from 12.1, before 12.1-55.302 | 12.1-55.302 |
| citrix netscaler_gateway | from 14.1, before 14.1-12.35 | 14.1-12.35 |
| citrix netscaler_gateway | from 13.1, before 13.1-51.15 | 13.1-51.15 |
| citrix netscaler_gateway | from 13.0, before 13.0-92.21 | 13.0-92.21 |
Exploitation
| In CISA KEV since | 17 Jan 2024 |
|---|---|
| Due date for US federal agencies | 24 Jan 2024 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 8.8 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-94 |
References
- CVE-2023-6548 on NVD
- CVE-2023-6548 in the CISA KEV catalog
- https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549 (cited by CISA)
- https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6548 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.