CVE-2022-32744

2022-07-2700:00:00

ubuntu.com

samba

kdc

passwordchange

domain takeover

securityflaw

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

42.9%

JSON

A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with
any key known to it. By encrypting forged kpasswd requests with its own
key, a user can change other users’ passwords, enabling full domain
takeover.

Bugs

<https://bugzilla.samba.org/show_bug.cgi?id=15074>
<https://bugzilla.samba.org/show_bug.cgi?id=15109 (tracking bug)>

Notes

Author	Note
mdeslaur	patches for this issue in the bug for CVE-2022-2031 Fixing this in Ubuntu 18.04 LTS would require substantial code backports. We will not be fixing this issue in Ubuntu 18.04 LTS. In environments where this is of concern, we recommend updating to a more recent Ubuntu version, or disabling kpasswd if this is not passible.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchsamba< 2:4.13.17~dfsg-0ubuntu1.20.04.1UNKNOWN
ubuntu22.04noarchsamba< 2:4.15.9+dfsg-0ubuntu0.2UNKNOWN
ubuntu22.10noarchsamba< 2:4.16.4+dfsg-2ubuntu1UNKNOWN
ubuntu23.04noarchsamba< 2:4.16.4+dfsg-2ubuntu1UNKNOWN
ubuntu23.10noarchsamba< 2:4.16.4+dfsg-2ubuntu1UNKNOWN
ubuntu24.04noarchsamba< 2:4.16.4+dfsg-2ubuntu1UNKNOWN
ubuntu14.04noarchsamba< anyUNKNOWN
ubuntu16.04noarchsamba< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	samba	< 2:4.13.17~dfsg-0ubuntu1.20.04.1	UNKNOWN
ubuntu	22.04	noarch	samba	< 2:4.15.9+dfsg-0ubuntu0.2	UNKNOWN
ubuntu	22.10	noarch	samba	< 2:4.16.4+dfsg-2ubuntu1	UNKNOWN
ubuntu	23.04	noarch	samba	< 2:4.16.4+dfsg-2ubuntu1	UNKNOWN
ubuntu	23.10	noarch	samba	< 2:4.16.4+dfsg-2ubuntu1	UNKNOWN
ubuntu	24.04	noarch	samba	< 2:4.16.4+dfsg-2ubuntu1	UNKNOWN
ubuntu	14.04	noarch	samba	< any	UNKNOWN
ubuntu	16.04	noarch	samba	< any	UNKNOWN