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CVE-2023-1671 is a pre-authentication command injection vulnerability in the warn-proceed handler of Sophos Web Appliance versions earlier than 4.3.10.4. The flaw allows an unauthenticated remote attacker to inject operating system commands through the vulnerable request handling logic, resulting in arbitrary code execution on the appliance.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (2 hidden).
This repository contains a Python proof-of-concept (POC) exploit for CVE-2023-1671, a pre-authentication remote code execution (RCE) vulnerability in Sophos Web Appliance. The main file, CVE-2023-1671-POC.py, automates exploitation by sending a specially crafted POST request to the vulnerable endpoint (/index.php?c=blocked&action=continue) on the target appliance. The exploit injects a base64-encoded command (ping to a DNSLog domain) via the 'user_encoded' parameter, leveraging command injection to trigger an outbound DNS request. The script uses the dnslog.cn service to obtain a unique domain and verify if the target system executed the command by checking for DNS queries to that domain. Vulnerable targets are logged to a file. The README provides usage instructions, search dorks for finding targets, and a reference to a technical analysis. The repository is structured with a single exploit script and a README, and is intended for security researchers to verify the presence of the vulnerability.
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1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.