CVE-2025-4517— Python 安全漏洞
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一、 漏洞 CVE-2025-4517 基础信息
漏洞信息
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Vulnerability Title
Arbitrary writes via tarfile realpath overflow
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
Allows arbitrary filesystem writes outside the extraction directory during extraction with filter="data". You are affected by this vulnerability if using the tarfile module to extract untrusted tar archives using TarFile.extractall() or TarFile.extract() using the filter= parameter with a value of "data" or "tar". See the tarfile extraction filters documentation https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information. Note that for Python 3.14 or later the default value of filter= changed from "no filtering" to `"data", so if you are relying on this new default behavior then your usage is also affected. Note that none of these vulnerabilities significantly affect the installation of source distributions which are tar archives as source distributions already allow arbitrary code execution during the build process. However when evaluating source distributions it's important to avoid installing source distributions with suspicious links.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Python 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Python是Python基金会的一套开源的、面向对象的程序设计语言。该语言具有可扩展、支持模块和包、支持多种平台等特点。 Python 3.12及之后版本存在安全漏洞，该漏洞源于提取过滤器允许任意文件系统写入提取目录外。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Python Software Foundation | CPython | 0 ~ 3.10.18 | - |
二、漏洞 CVE-2025-4517 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | CVE‑2025‑4517 Proof‑of‑Concept Script | https://github.com/AnimePrincess420/CVE-2025-4517-PoC | POC详情 |
| 2 | CVE-2025-4517 (CVSS 9.4 – Critical) A vulnerability in Python's `tarfile` | https://github.com/StealthByte0/CVE-2025-4517-poc | POC详情 |
| 3 | Python tarfile data filter bypass via PATH_MAX overflow in os.path.realpath() - CVE-2025-4517 / CVE-2025-4330 | https://github.com/0xDTC/CVE-2025-4517-tarfile-PATH_MAX-bypass | POC详情 |
| 4 | Privilege Escalation script for Wingdata | https://github.com/AzureADTrent/CVE-2025-4517-POC-HTB-WingData | POC详情 |
| 5 | A high-performance Python toolkit to automate the CVE-2025-4517 PATH_MAX bypass exploit. Specifically tuned for the WingData HTB challenge to achieve arbitrary file writes and root persistence | https://github.com/Rohitberiwala/PyPath-Escape-CVE-2025-4517-Exploit-Research | POC详情 |
| 6 | PoC and explanation for CVE-2025-4517 used in a CTF I was playing. | https://github.com/kerburenthusiasm/CVE-2025-4517-PoC | POC详情 |
| 7 | None | https://github.com/ben-slates/CVE-2025-4517-POC-HTB-WINGDATA | POC详情 |
| 8 | Path traversal vulnerability in Python's tarfile. | https://github.com/estebanzarate/CVE-2025-4517-Python-tarfile-filter-data-Bypass-PoC | POC详情 |
| 9 | None | https://github.com/ben-slates/CVE-2025-4517-POC | POC详情 |
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同批安全公告 · Python Software Foundation · 2025-06-03 · 共 5 条
| CVE-2025-4138 | 7.5 HIGH | Python 安全漏洞 |
| CVE-2025-4330 | 7.5 HIGH | Python 安全漏洞 |
| CVE-2025-4435 | 7.5 HIGH | CPython 安全漏洞 |
| CVE-2024-12718 | 5.3 MEDIUM | Python 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2025-4517
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