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CVE-2021-29442 affects Nacos before version 1.4.1. When Nacos is deployed with embedded Derby storage, the ConfigOpsController exposes management functionality through a Derby-related endpoint that is not protected by the expected security controls. Specifically, the /derby endpoint lacks the protection applied to other sensitive management endpoints, allowing unauthenticated users to access database management capabilities. The flaw is an authorization weakness in which a sensitive administrative interface is exposed without proper access restriction. Installations using external storage such as MySQL are not affected by this specific issue.
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What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a Nuclei template (CVE-2021-29442.yaml) for exploiting CVE-2024-4577, a critical PHP CGI argument injection vulnerability that allows unauthenticated remote code execution on XAMPP servers. The template sends a specially crafted POST request to various common PHP CGI endpoints, injecting arguments that enable 'allow_url_include' and set 'auto_prepend_file' to 'php://input', then supplies a PHP payload (phpinfo()) in the request body. Successful exploitation is detected by checking for a 200 HTTP status and the presence of 'PHP Version' in the response. The README provides minimal context and unrelated search queries. The main file is a proof-of-concept exploit, not a weaponized tool, and is designed for use with the Nuclei scanning framework. No hardcoded IPs or domains are present; all endpoints are parameterized for scanning.
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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in Alibaba Nacos explicitly described as weaponized by UAT-10147 during the campaign.
A remote code execution vulnerability in the Nacos framework exploited by UAT-10147 for initial compromise of exposed servers.
An arbitrary code execution vulnerability in the Nacos framework that the actor weaponized for exploitation and telemetry 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.