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CVE-2019-10655 is an unauthenticated remote code execution vulnerability affecting Grandstream GAC2500 firmware 1.0.3.35, GXP2200 firmware 1.0.3.27, GVC3202 firmware 1.0.3.51, and GXV3275 and GXV3240 firmware before 1.0.3.219 Beta. Exploitation chains a cookie-based buffer overflow that overwrites an authentication-related data structure with command injection through shell metacharacters in the priority parameter of the management log-retrieval operation. The chain bypasses authentication and permits remote code execution. A browser-mediated CSRF exploitation route is also possible because lighttpd accepts the cookie through an Accept HTTP header supplied by XMLHttpRequest. Zerobot and a Mirai variant incorporate exploits for this vulnerability.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting Grandstream GXV31XX IP multimedia phones. The exploit leverages two vulnerabilities: a command injection in the 'settimezone' action's 'timezone' parameter and an authentication bypass via a specially crafted 'phonecookie' cookie. The module allows unauthenticated remote command execution on affected devices by sending HTTP requests to the /manager endpoint. It supports multiple payloads, including bind shells and Meterpreter reverse shells, and is weaponized for operational use. The code is written in Ruby and structured as a standard Metasploit exploit module, making it easy to use within the Metasploit framework. The exploit specifically targets devices running vulnerable firmware versions as referenced in CVE-2019-10655.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Command injection involving an invalid phonecookie in Grandstream devices, exploited by Zerobot for propagation.
A vulnerability affecting Grandstream devices that Zerobot 1.1 includes for exploitation.
A vulnerability listed as one of the infection exploits used by Mirai variant four to infect additional vulnerable hosts.
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.