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CVE-2022-22536 is a critical unauthenticated request smuggling / request concatenation vulnerability in the SAP Internet Communication Manager (ICM) affecting SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53, and SAP Web Dispatcher. The issue is described as an MPI (memory pipes) desynchronization condition in ICM’s handling of HTTP requests, allowing malformed or specially crafted HTTP packets to cause front-end and back-end parsing inconsistencies. An attacker can prepend arbitrary data to a victim’s request, enabling request chaining against the SAP server. Because ICM is broadly used across internet-connected SAP products and the vulnerable behavior is reported to be present by default, exploitation is considered simple and does not require authentication. Successful exploitation can allow the attacker to impersonate a victim’s request context, expose sensitive data such as credentials and session information, and poison intermediary web caches.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (3 hidden).
This repository provides a proof-of-concept (PoC) exploit for CVE-2022-22536, a critical HTTP Request Smuggling vulnerability affecting SAP NetWeaver Application Server and related SAP products. The main exploit is implemented in 'sapgatebreaker.py', a standalone Python script. The exploit works by sending a specially crafted POST request to a public SAP endpoint (e.g., '/sap/admin/public/default.html') with a manipulated 'Content-Length' header and an embedded GET request targeting internal SAP resources. This technique leverages discrepancies in HTTP request parsing between SAP's Internet Communication Manager (ICM) and backend services, allowing attackers to bypass access controls and interact with internal endpoints as if they were on the internal network. The script automates detection of SAP version, builds and sends smuggled requests, and compares direct versus smuggled access to a list of sensitive internal SAP URLs. The repository also includes a 'dorks' file with search queries for identifying potentially vulnerable SAP instances. The exploit is a PoC and does not provide a weaponized or post-exploitation payload, but demonstrates the vulnerability and its impact. The README.md provides detailed background, usage instructions, and remediation advice.
This repository provides a Python proof-of-concept (POC) exploit for CVE-2022-22536, a critical request smuggling and desynchronization vulnerability affecting multiple SAP products, including SAP Web Dispatcher, NetWeaver, ABAP Platform, and Content Server. The main exploit file, CVE-2022-22536.py, implements a class that crafts and sends specially constructed HTTP requests to a target SAP system, attempting to trigger the vulnerability and determine if the system is affected. The script uses direct socket connections (optionally over SSL/TLS) and tests specific SAP resource paths to validate the presence of the vulnerability. The README provides detailed background, affected versions, usage scenarios, and references. The repository is structured simply, with the main exploit code, a README, license, requirements.txt (for the loguru logging library), and a .gitignore. No hardcoded IPs or domains are present, but two SAP-specific resource paths are used for fingerprinting and validation. The exploit is a POC and does not provide post-exploitation payloads or weaponization.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unauthenticated HTTP request smuggling vulnerability in SAP Internet Communication Manager (ICM) that can expose sensitive data (e.g., credentials/session information) from SAP servers, including when deployed behind proxies, due to ICM’s ubiquitous/default presence across SAP products.
SAP Internet Communication Manager (ICM) -komponentin haavoittuvuus, joka liittyy pyyntöjen ketjutushyökkäyksiin (request smuggling / request concatenation). Sisällön mukaan hyväksikäyttö on erittäin yksinkertaista ja komponentti on laajasti käytössä SAP-tuotteissa, jotka käyttävät internet-yhteyttä.
A critical SAP Internet Communication Manager (ICM) vulnerability enabling request smuggling/concatenation via desynchronization, potentially leading to remote code execution and full system compromise.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.