CVE-2019-10655 is an unauthenticated remote code execution vulnerability affecting multiple Grandstream devices, including GAC2500 1.0.3.35, GXP2200 1.0.3.27, GVC3202 1.0.3.51, GXV3275 before 1.0.3.219 Beta, and GXV3240 before 1.0.3.219 Beta. The issue is reachable through the /manager endpoint when the action parameter is set to getlogcat. An attacker can inject shell metacharacters through the priority field, resulting in command injection. Exploitation also relies on a buffer overflow involving the phonecookie value to overwrite an internal data structure and thereby bypass authentication controls. The vulnerability can be triggered remotely and may also be exploitable through cross-site request forgery in environments where a crafted XMLHttpRequest can place the required cookie value in an HTTP header handled by lighttpd.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.