CVE-2019-19781: Shitrix
Path Traversal: Is CVE-2019-19781 real, exploitable, or a false positive? Here's the community verdict.
signals
public sources
Confirmed exploited in the wild. Patch this first, regardless of the base score.
public exploits
links to sources — we don’t host codeA working exploit is publicly available from a maintained source. Treat this as higher urgency and verify your exposure.
baseline read
auto · not a community verdict
Real — exploited in the wild
CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.
Based on CISA KEV
Confirm or dispute →CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.
References
Published
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In your experience, is this finding real and exploitable?
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Field notes & remediation
Verdicts are the quick signal. Notes are the evidence and fixes behind them.
- 0
A directory traversal flaw in Citrix ADC and Gateway (formerly NetScaler) leads to unauthenticated remote code execution. It was mass-exploited over the 2019 and 2020 holiday period, and it was worse because the patch arrived weeks after the first mitigation, so many appliances stayed exposed.
Who is affected: Citrix ADC and Gateway on vulnerable firmware.
Very important: the early mitigation (a responder policy) turned out to be bypassable on some builds, so an appliance that was only mitigated, not patched, may still have been hit.
Commonly flagged by: Nessus, Qualys, Rapid7.
- 0
Patch the firmware to a fixed version. Do not rely on the early responder-policy mitigation alone, because it was bypassable. Hunt for web shells, commonly dropped under the /netscaler/portal/templates path, and investigate if the appliance was exposed during the mass-exploitation window.
Add a field note or remediationoptional
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