CVE-2022-35508 | BDVDB-2026-189773 Detail
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-918 Server-Side Request Forgery (SSRF)
References#
- 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=e9df8a6e76b2a18f89295a5d92a62177bbf0f762
- https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=c2bd69c7b5e9c775f96021cf8ae53da3dbd9029d
- https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.