Vulnerability Details : CVE-2022-35508
Potential exploit
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.
Vulnerability category: Server-side request forgery (SSRF) Gain privilege
Products affected by CVE-2022-35508
- cpe:2.3:a:proxmox:proxmox_mail_gateway:-:*:*:*:*:*:*:*
- cpe:2.3:a:proxmox:virtual_environment:-:*:*:*:*:*:*:*
- cpe:2.3:a:proxmox:pve_http_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-35508
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 28 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-35508
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2025-04-24 |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2022-35508
-
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2022-35508
-
https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/
Multiple Vulnerabilities in Proxmox VE & Proxmox Mail Gateway | STAR LabsExploit;Patch;Technical Description;Third Party Advisory
-
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=c2bd69c7b5e9c775f96021cf8ae53da3dbd9029d
-
https://git.proxmox.com/?p=pve-http-server.git;a=commitdiff;h=580d540ea907ba15f64379c5bb69ecf1a49a875f
git.proxmox.com Git - pve-http-server.git/commitdiffPatch;Third Party Advisory
-
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=580d540ea907ba15f64379c5bb69ecf1a49a875f
git.proxmox.com Git
-
https://git.proxmox.com/?p=pve-http-server.git;a=commitdiff;h=c2bd69c7b5e9c775f96021cf8ae53da3dbd9029d
git.proxmox.com Git - pve-http-server.git/commitdiffPatch;Third Party Advisory
-
https://git.proxmox.com/?p=pve-http-server.git;a=commitdiff;h=e9df8a6e76b2a18f89295a5d92a62177bbf0f762
git.proxmox.com Git - pve-http-server.git/commitdiffPatch;Third Party Advisory
-
https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=e9df8a6e76b2a18f89295a5d92a62177bbf0f762
git.proxmox.com Git
Jump to