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CVE-1999-0524 is an information disclosure issue in systems that respond to ICMP timestamp and, in some implementations, ICMP address mask requests from arbitrary remote hosts. By sending these ICMP queries, an unauthenticated attacker can obtain host time-related information and network configuration details such as the configured netmask. The behavior is often inherent to legacy or default ICMP protocol handling rather than a memory corruption flaw, but it can still expose operationally useful information to remote parties. In particular, ICMP timestamp responses disclose the date or time configured on the target system, which can support reconnaissance and may assist in attacks against time-dependent authentication mechanisms.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (3 hidden).
This repository contains a Python proof-of-concept exploit for CVE-1999-0524, which targets systems that respond to ICMP Timestamp and Address Mask requests. The main script, CVE-1999-0524.py, allows a user to send custom ICMP packets (type 13 for Timestamp, type 17 for Address Mask) to a specified IP address or domain name. It supports both single-target and bulk modes (reading targets from a file), and can optionally check if a specific TCP port is open before sending the ICMP request. The script requires administrative privileges to send raw ICMP packets. Results, including received responses or errors, can be printed to the console or saved to an output file. The README.md provides detailed usage instructions, examples, and notes on permissions. The exploit is a network-based probe and does not deliver a shell or code execution, but can be used to identify systems vulnerable to information disclosure or DoS via ICMP. The repository is well-structured, with clear separation between code and documentation.
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2 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.