{"id":33922,"date":"2025-04-30T07:05:56","date_gmt":"2025-04-30T07:05:56","guid":{"rendered":""},"modified":"2025-09-07T11:38:02","modified_gmt":"2025-09-07T17:38:02","slug":"cve-2025-32953-security-vulnerability-in-z80pack-emulator-leading-to-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-32953-security-vulnerability-in-z80pack-emulator-leading-to-system-compromise\/","title":{"rendered":"CVE-2025-32953: Security Vulnerability in z80pack Emulator Leading to System Compromise<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

In the ever-evolving world of cybersecurity, vulnerabilities can be found in the most unexpected places. One such vulnerability, CVE-2025-32953, exists in the z80pack emulator, a mature software package used to emulate multiple platforms running the 8080 and Z80 CPUs. This vulnerability can lead to a potential system compromise or data<\/a> leakage, posing a significant threat to systems utilizing this emulator. Not only could this impact the integrity of these systems, but it could also compromise any sensitive data<\/a> stored therein.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-32953
\nSeverity: High (8.7 CVSS score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System Compromise<\/a> or Data Leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

z80pack | 1.38 and prior<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability lies in the `makefile-ubuntu.yml` workflow file<\/a> of z80pack. This file uses `actions\/upload-artifact@v4` to upload<\/a> the `z80pack-ubuntu` artifact, which is a zip of the current directory. This directory includes the automatically generated `.git\/config` file<\/a> that contains the run’s GITHUB_TOKEN. The vulnerability comes into play because this artifact can be downloaded before the end of the workflow, creating a small window where an attacker can extract the token<\/a> from the artifact.
\nWith this token, an attacker can use the GitHub API to push malicious code<\/a> or rewrite release commits in your repository. This could lead to a system compromise or potential data<\/a> leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The exploit could, conceptually, occur as follows:<\/p>\n

# Downloading the z80pack-ubuntu artifact\nwget https:\/\/github.com\/z80pack\/z80pack\/actions\/artifacts\/123456\/download\n# Extracting the .git\/config file containing the GITHUB_TOKEN\nunzip z80pack-ubuntu.zip .git\/config\n# Using the extracted GITHUB_TOKEN to push malicious code\ngit clone https:\/\/github.com\/z80pack\/z80pack.git\ncd z80pack\necho \"malicious code\" > exploit.js\ngit add exploit.js\ngit commit -m \"Add new feature\"\ngit push origin master<\/code><\/pre>\n
Please note that this is a simplified illustration of how the vulnerability might be exploited<\/a> and does not represent an actual exploit.<\/p>\n
Mitigation<\/strong><\/p>\n
To mitigate this vulnerability, users should promptly apply the vendor patch as provided in commit bd95916. Alternatively, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation against potential exploits<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In the ever-evolving world of cybersecurity, vulnerabilities can be found in the most unexpected places. One such vulnerability, CVE-2025-32953, exists in the z80pack emulator, a mature software package used to emulate multiple platforms running the 8080 and Z80 CPUs. This vulnerability can lead to a potential system compromise or data leakage, posing a significant […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[79,88],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-33922","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-github","vendor-linux"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t