CVE-2026-68376-Ubuntu-7.0.0-30-Poc

Overview

This project contains a Proof-of-Concept (PoC) exploit for CVE-2026-68376, targeting Ubuntu kernel version 7.0.0-30. The exploit leverages a vulnerability in the SCTP (Stream Control Transmission Protocol) implementation to achieve privilege escalation through Page Table Entry (PTE) manipulation.

Disclaimer

THIS TOOL IS FOR EDUCATIONAL AND RESEARCH PURPOSES ONLY.

• Use only on systems you own or have explicit permission to test
• Unauthorized use of this exploit against target systems is illegal
• The author is not responsible for any damage or legal issues resulting from misuse

Project Structure

CVE-2026-68376-Ubuntu-7.0.0-30-Poc/
├── CVE-2026-68376.go    # Main Go source code for the exploit
├── n2p-exploit          # Compiled binary executable
├── go.mod              # Go module definition
├── .gitignore          # Git ignore rules (generated)
└── README.md           # This file

Features

• SCTP PTE Exploit: Leverages SCTP protocol vulnerability for privilege escalation
• Multiple attack vectors: Supports both full exploit execution and vulnerability triggering only
• Verbose output: Detailed logging for debugging and analysis
• Configurable options: Customizable via environment variables and command-line flags
• ASCII banner: Visual identification of the exploit

Installation

Prerequisites

• Go 1.27.1 or later
• Linux system with Ubuntu kernel 7.0.0-30
• Root privileges for exploit execution

Building from Source

# Clone the repository
git clone <repository-url>
cd CVE-2026-68376-Ubuntu-7.0.0-30-Poc

# Build the Go project
go build -o n2p-exploit CVE-2026-68376.go

# Make the binary executable
chmod +x n2p-exploit

Usage

Basic Execution

./n2p-exploit

Command-Line Options

./n2p-exploit [OPTIONS] [PID]

Environment Variables

Examples

# Full exploit execution
./n2p-exploit

# With verbose output
./n2p-exploit --verbose

# Trigger vulnerability only (safe for analysis)
./n2p-exploit --vuln-trigger

# With verbose and vulnerability trigger
./n2p-exploit --vuln-trigger --verbose

# Show banner
./n2p-exploit --banner

# Show current configuration
./n2p-exploit --config

# Run as root helper for specific PID
./n2p-exploit 12345

Technical Details

Vulnerability Overview

CVE-2026-68376 affects the SCTP implementation in Linux kernel 7.0.0-30. The exploit leverages improper handling of SCTP chunks and PTE manipulation to escalate privileges from user space to root.

Key Components

• SCTP Protocol: Exploits SCTP chunk handling mechanisms
• PTE Manipulation: Modifies Page Table Entries to redirect memory access
• Core Pattern: Uses core dump pattern to achieve write primitive
• Memory Layout: Carefully crafted memory mappings to facilitate exploit

Constants and Configuration

The exploit defines numerous constants for:

• System call numbers (x86_64 Linux)
• SCTP protocol parameters
• Memory regions and offsets
• Signal and process constants
• MADVISE advice values

Security Considerations

1. Kernel Dependencies: This exploit targets specific kernel version 7.0.0-30. Other kernel versions may not be vulnerable.
2. ASLR and Security Mitigations: Modern kernel security features may prevent successful exploitation.
3. Testing Environment: Recommended to test in isolated virtual machines or containers.
4. Ethical Use: Only test on systems you have permission to assess.

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

References

• CVE-2026-68376: MITRE CVE
• Ubuntu Kernel 7.0.0-30
• SCTP Protocol Specification
• Linux Kernel Memory Management

CVE-2026-68376-Ubuntu-7.0.0-30-Poc