CVE-2022-35508

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG) are vulnerable to SSRF when proxying HTTP requests between pve(pmg)proxy and pve(pmg)daemon. An attacker with an unprivileged account can craft an HTTP request to achieve SSRF and file disclosure of any files on the server. Also, in Proxmox Mail Gateway, privilege escalation to the root@pam account is possible if the backup feature has ever been used, because backup files such as pmg-backup_YYYY_MM_DD_*.tgz have 0644 permissions and contain an authkey value. This is fixed in pve-http-server 4.1-3.

Proxmox Virtual Environment (PVE) y Proxmox Mail Gateway (PMG) son vulnerables a SSRF cuando envían solicitudes HTTP entre el proxy pve(pmg) y el daemon pve(pmg). Un atacante con una cuenta sin privilegios puede crear una solicitud HTTP para lograr SSRF y revelar cualquier archivo en el servidor. Además, en Proxmox Mail Gateway, la escalada de privilegios a la cuenta root@pam es posible si alguna vez se ha utilizado la función de copia de seguridad, porque los archivos de copia de seguridad como pmg-backup_YYYY_MM_DD_*.tgz tienen permisos 0644 y contienen un valor de clave de autenticación. Esto se solucionó en pve-http-server 4.1-3.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-07-11 CVE Reserved
2022-12-04 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-918: Server-Side Request Forgery (SSRF)

CAPEC

References (4)

URL	Tag	Source
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=580d540ea907ba15f64379c5bb69ecf1a49a875f
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=c2bd69c7b5e9c775f96021cf8ae53da3dbd9029d
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=e9df8a6e76b2a18f89295a5d92a62177bbf0f762

URL	Date	SRC
https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Proxmox Search vendor "Proxmox"		Proxmox Mail Gateway Search vendor "Proxmox" for product "Proxmox Mail Gateway"				-		-		Affected
Proxmox Search vendor "Proxmox"		Pve Http Server Search vendor "Proxmox" for product "Pve Http Server"				< 4.1-3 Search vendor "Proxmox" for product "Pve Http Server" and version " < 4.1-3"		-		Affected
Proxmox Search vendor "Proxmox"		Virtual Environment Search vendor "Proxmox" for product "Virtual Environment"				-		-		Affected