CVE-2010-2227 is an improper input-handling vulnerability in Apache Tomcat's processing of invalid HTTP Transfer-Encoding headers. Tomcat 5.5.0 through 5.5.29, 6.0.0 through 6.0.27, and 7.0.0 beta may fail to recycle a request buffer after receiving a crafted invalid header. The resulting stale buffer state can disrupt subsequent request handling or expose data across requests.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is the official Metasploit Framework, a comprehensive and modular exploitation platform widely used for penetration testing, vulnerability research, and red teaming. The structure includes configuration files, Ruby application code, data files for exploits (including CVE-specific resources), and auxiliary tools. The framework supports a vast array of exploits, payloads, and auxiliary modules targeting network services, operating systems, and applications. It provides weaponized exploitation capabilities, including remote code execution, privilege escalation, credential harvesting, and post-exploitation modules. The repository contains both the core framework and data files for specific exploits (e.g., CVE-2008-6508, CVE-2010-1240, CVE-2012-0013), as well as configuration files for database and service integration. The main attack vectors are both network-based and local, depending on the selected module. The framework is highly mature and operational, with extensive documentation and support for custom module development.
This repository contains a single Metasploit auxiliary module targeting Apache Tomcat servers vulnerable to CVE-2010-2227. The exploit abuses improper handling of the 'Transfer-Encoding' HTTP header to cause a denial of service (DoS) or potentially leak sensitive information. The module sends multiple crafted HTTP POST requests with an invalid 'Transfer-Encoding: buffered' header and a large Content-Length to the target server, aiming to crash the service or disrupt its operation. The code is written in Ruby and is structured as a standard Metasploit module, with configurable options for the target port and number of requests. The main attack vector is network-based, targeting the HTTP service of Apache Tomcat. No hardcoded IPs or domains are present; the target is specified by the user at runtime.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Apache Tomcat flaw in handling invalid Transfer-Encoding headers. A remote attacker can send a crafted header that interferes with buffer recycling, causing denial of service or sensitive-information disclosure.
Remote denial-of-service and information-disclosure flaw in Transfer-Encoding processing.
Third-party software vulnerability addressed by the HP XP P9000 Performance Advisor v5.5.1 update.
A remotely exploitable vulnerability affecting confidentiality and availability, addressed by HP's update.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.