Security restrictions bypass in Dovecot



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-30550
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Dovecot
Server applications / Mail servers

Vendor Dovecot

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU65119

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 - Permissions, Privileges, and Access Controls

Exploit availability: No

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

CPE2.3 External links

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


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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