CVE-2021-44077 is an unauthenticated remote code execution vulnerability affecting Zoho ManageEngine ServiceDesk Plus before build 11306, ServiceDesk Plus MSP before build 10530, and SupportCenter Plus before build 11014. The flaw involves REST API servlet mappings and the ImportTechnicians Struts configuration. In ServiceDesk Plus, exploitation uses two unauthenticated remote requests: one uploads an executable, and another launches it through an application installation workflow. All editions of on-premises ServiceDesk Plus through build 11305 are affected. Active exploitation has included deployment of Godzilla webshells and other persistent access mechanisms.
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What an attacker gets, and what they’ve been doing with it.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting CVE-2021-44077, an unauthenticated remote code execution vulnerability in ManageEngine ServiceDesk Plus (up to build 11305). The exploit works by first checking for the presence of a vulnerable endpoint (/RestAPI/ImportTechnicians), then uploading a malicious Windows executable (msiexec.exe) via a POST request, and finally triggering its execution through another endpoint (/RestAPI/s247action). The payload is generated by Metasploit and typically provides a reverse shell or similar access as SYSTEM. The module is operational and provides full remote code execution if the target is vulnerable. The code is written in Ruby and is structured as a standard Metasploit exploit module, with clear separation of check, exploit, upload, and execution logic. No hardcoded IPs or domains are present; the exploit is configurable for the target's base path and port.
This repository provides a working exploit for CVE-2021-44077, a pre-authentication remote code execution vulnerability in ManageEngine ServiceDesk Plus versions prior to build 11306. The exploit is implemented in a single Python script ('exploit.py') that takes two arguments: the base URL of the target ServiceDesk Plus instance and the path to a Windows executable payload. The script uploads the payload to a specific REST API endpoint and then triggers its execution via another endpoint, resulting in arbitrary code execution on the target server. The README provides detailed usage instructions, including how to generate a payload (e.g., with msfvenom) and how to set up a listener for a reverse shell. The exploit requires the 'requests' Python library and is operational, allowing attackers to run arbitrary code on vulnerable systems. No detection or scanning functionality is present; the script is solely for exploitation. The repository is well-structured, with clear documentation and a single exploit script as the main code file.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical unauthenticated remote code execution vulnerability affecting all editions of on-premises ManageEngine ServiceDesk Plus through build 11305. Attackers can execute arbitrary code and conduct subsequent attacks. The vendor reports active exploitation and states that build 11306 and later fixed the vulnerability on September 16, 2021. Temporary mitigations modify web.xml and struts-config.xml. Upgrading prevents new exploitation but does not remove an existing compromise; the vendor recommends compromise checks and migration to a clean server. Limited log retention means a scan may miss historical compromise.
A vulnerability in Zoho ManageEngine ServiceDesk Plus that APT27 shifted to exploiting after patches were released for CVE-2021-40539.
A remote code execution vulnerability in ManageEngine SupportCenter Plus used to gain privileged access.
A specific vulnerability in ManageEngine that was used by threat actors to gain access, leading to webshell deployment and data exfiltration.
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.