CVE-2022-35507

· HIGHModified

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CVSS v3.1

7.1

EPSS

1.39%

Published

Dec 4, 2022

Modified

Apr 24, 2025

Public PoC / Exploit (2)

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Description

A response-header CRLF injection vulnerability in the Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG) web interface allows a remote attacker to set cookies for a victim's browser that are longer than the server expects, causing a client-side DoS. This affects Chromium-based browsers because they allow injection of response headers with %0d. This is fixed in pve-http-server 4.1-3.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

Weaknesses (CWE)

CWE-74CWE-74

Affected Products (3)

proxmox · proxmox_mail_gatewayvulnerable

proxmox · pve_http_server (up to 4.1-3)vulnerable

proxmox · virtual_environmentvulnerable

References (4)

https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=936007ae0241811093155000486da171379c23c2

https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/

ExploitPatchTechnical Description

https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=936007ae0241811093155000486da171379c23c2

https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/

ExploitPatchTechnical Description

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