CVE-2022-32744 — Authentication Bypass by Spoofing in Samba

CWE-290 — Authentication Bypass by Spoofing8 documents7 sources
Severity
8.8HIGHNVD
OSV6.5
EPSS
0.5%
top 35.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
SambaDebian SambaMsrc Azl3 Samba 4.18.3-1 ON Azure Linux 3.0+2 more
Timeline
PublishedAug 25
Latest updateAug 26

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages8 packages

▶NVDsamba/samba4.3.0 — 4.14.14+2
▶debiandebian/samba< samba 2:4.16.4+dfsg-1 (bookworm)
▶Debiansamba/samba< 2:4.13.13+dfsg-1~deb11u5+3
▶Ubuntusamba/samba< 2:4.13.17~dfsg-0ubuntu1.20.04.1+1
▶CVEListV5samba/sambaVersions prior to samba 4.16.4, samba 4.15.9, samba 4.14.14

Patches

Patch: www.samba.org ↗Patch: www.samba.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-6p44-5x7x-8vxj: A flaw was found in Samba↗2022-08-26
▶
OSV
CVE-2022-32744: A flaw was found in Samba↗2022-08-25
▶
OSV
samba vulnerabilities↗2022-08-01
▶

📋Vendor Advisories

4
Microsoft
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↗2022-08-09
▶
Ubuntu
Samba vulnerabilities↗2022-08-01
▶
Red Hat
samba: AD users can forge password change requests for any user↗2022-07-27
▶
Debian
CVE-2022-32744: samba - A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any k...↗2022
▶