#VU65119 Permissions, Privileges, and Access Controls in Dovecot - CVE-2022-30550

Vulnerability identifier: #VU65119

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-30550

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Dovecot
Server applications / Mail servers

Vendor: Dovecot

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly handle multiple passdb
configuration entries. A remote attacker can potentially escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Dovecot: 2.2.30 - 2.3.19.1

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External links
https://github.com/dovecot/core/commit/7bad6a24160e34bce8f10e73dbbf9e5fbbcd1904

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.