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CVE-2024-21545

Quick assessment

Affected
Proxmox pve-manager
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Proxmox Virtual Environment（Proxmox VE）是Proxmox公司的一个开源的服务器虚拟化环境 Linux 发行版。 Proxmox Virtual Environment存在安全漏洞，该漏洞源于对恶意API响应值的保护措施不足，经过身份验证的攻击者可以通过API下载任意主机文件。

CVSS 8.2 · High EPSS 0.36% · P30
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I. Basic Information for CVE-2024-21545

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Proxmox Virtual Environment is an open-source server management platform for enterprise virtualization. Insufficient safeguards against malicious API response values allow authenticated attackers with 'Sys.Audit' or 'VM.Monitor' privileges to download arbitrary host files via the API. When handling the result from a request handler before returning it to the user, the handle_api2_request function will check for the ‘download’ or ‘data’->’download’ objects inside the request handler call response object. If present, handle_api2_request will read a local file defined by this object and return it to the user. Two endpoints were identified which can control the object returned by a request handler sufficiently that the ’download’ object is defined and user controlled. This results in arbitrary file read. The privileges of this file read can result in full compromise of the system by various impacts such as disclosing sensitive files allowing for privileged session forgery.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Proxmox Virtual Environment 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Proxmox Virtual Environment（Proxmox VE）是Proxmox公司的一个开源的服务器虚拟化环境 Linux 发行版。 Proxmox Virtual Environment存在安全漏洞，该漏洞源于对恶意API响应值的保护措施不足，经过身份验证的攻击者可以通过API下载任意主机文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Proxmox pve-manager 0 ~ 7.4-19 -
Proxmox libpve-storage-perl 0 ~ 7.4-4 -
Proxmox libpve-http-server-perl 3.2-1 ~ 4.3.0 -
Proxmox pmg-api 0 ~ 7.3-12 -
Proxmox libpve-common-perl (Promox VE 8) 0 ~ 8.2.3 -
Proxmox libpve-common-perl (Promox Mail Gateway 8) 0 ~ 8.2.5 -

II. Public POCs for CVE-2024-21545

# POC Description Source Link Shenlong Link
1 Proxmox VE Arbitrary File Read -> Full System Compromise . Not Testeted yet... will test them this week https://github.com/SpiralBL0CK/CVE-2024-21545-PoC POC Details
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III. Intelligence Information for CVE-2024-21545

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Patches & Fixes for CVE-2024-21545 (1)

Other References for CVE-2024-21545 (1)

IV. Related Vulnerabilities

Same vendor: Proxmox
Same weakness: CWE-73