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Mallory
MediumCISA KEVExploited in the wildPublic exploit

Path Traversal / LFI in Citrix ADC, Gateway, and SD-WAN WANOP

IdentifiersCVE-2020-8195CWE-22· Improper Limitation of a Pathname…

CVE-2020-8195 is an improper input validation vulnerability in Citrix ADC and Citrix Gateway before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14, and 10.5-70.18, and Citrix SD-WAN WANOP before 11.1.1a, 11.0.3d, and 10.2.7. The provided content characterizes the issue as a path traversal vulnerability enabling local file inclusion and file-read verification. Citrix’s description states the flaw results in limited information disclosure to low-privileged users. Based on the supplied context, the vulnerability stems from insufficient validation of user-controlled input used in file path handling, allowing traversal outside intended directories and disclosure of local files.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows information disclosure through arbitrary local file reads within the constraints of the vulnerable appliance and access context. The vendor description says the disclosure is limited and available to low-privileged users; the supporting context further describes file-read verification/LFI behavior. Exposure of configuration files, system files, or other sensitive local content could aid follow-on activity such as credential harvesting, environment discovery, or chaining with additional vulnerabilities, but the provided content does not establish direct code execution from CVE-2020-8195 alone.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of management and appliance interfaces to trusted administrative networks only, restrict access for low-privileged users, monitor for suspicious file-access/path-traversal requests, and review appliances for signs of exploitation or abnormal disclosure activity. Because the content notes real-world exploitation, organizations that delayed patching should perform compromise assessment and log review in addition to applying updates. Specific temporary vendor mitigations are not provided in the supplied content.

Remediation

Patch, then assume compromise.

Upgrade affected Citrix ADC, Citrix Gateway, and Citrix SD-WAN WANOP instances to fixed versions: ADC/Gateway 13.0-58.30 or later, 12.1-57.18 or later, 12.0-63.21 or later, 11.1-64.14 or later, 10.5-70.18 or later; SD-WAN WANOP 11.1.1a or later, 11.0.3d or later, or 10.2.7 or later. Apply vendor-issued updates across all exposed appliances and validate that no vulnerable builds remain in service.
PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.

VALID 0 / 1 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Citrix SystemsApplication Delivery Controller Firmwareoperating_system
Citrix SystemsGateway Firmwareoperating_system
Citrix SystemsGateway Plug-In For Linuxapplication
Citrix SystemsNetscaler Gateway Firmwareoperating_system
Citrix SystemsSd-Wan Wanopoperating_system

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What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware4

Malware families riding this exploit, with evidence and IOCs.

Detection signatures1

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.