Amazon Linux AMI update for samba

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU69151

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38023

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to security features bypass in Netlogon RPC. A remote attacker can bypass the Netlogon cryptography feature for signing and sealing traffic during Netlogon authentication.

Mitigation

Update the affected packages:

i686:
    libsmbclient-4.10.16-24.66.amzn1.i686
    samba-client-4.10.16-24.66.amzn1.i686
    samba-test-4.10.16-24.66.amzn1.i686
    samba-common-libs-4.10.16-24.66.amzn1.i686
    ctdb-4.10.16-24.66.amzn1.i686
    samba-common-tools-4.10.16-24.66.amzn1.i686
    samba-python-test-4.10.16-24.66.amzn1.i686
    libwbclient-4.10.16-24.66.amzn1.i686
    libsmbclient-devel-4.10.16-24.66.amzn1.i686
    samba-debuginfo-4.10.16-24.66.amzn1.i686
    samba-winbind-krb5-locator-4.10.16-24.66.amzn1.i686
    samba-test-libs-4.10.16-24.66.amzn1.i686
    samba-client-libs-4.10.16-24.66.amzn1.i686
    samba-winbind-clients-4.10.16-24.66.amzn1.i686
    samba-libs-4.10.16-24.66.amzn1.i686
    samba-python-4.10.16-24.66.amzn1.i686
    samba-winbind-modules-4.10.16-24.66.amzn1.i686
    samba-krb5-printing-4.10.16-24.66.amzn1.i686
    samba-winbind-4.10.16-24.66.amzn1.i686
    samba-4.10.16-24.66.amzn1.i686
    samba-devel-4.10.16-24.66.amzn1.i686
    libwbclient-devel-4.10.16-24.66.amzn1.i686
    ctdb-tests-4.10.16-24.66.amzn1.i686

noarch:
    samba-common-4.10.16-24.66.amzn1.noarch
    samba-pidl-4.10.16-24.66.amzn1.noarch

src:
    samba-4.10.16-24.66.amzn1.src

x86_64:
    samba-4.10.16-24.66.amzn1.x86_64
    samba-winbind-modules-4.10.16-24.66.amzn1.x86_64
    samba-test-libs-4.10.16-24.66.amzn1.x86_64
    samba-winbind-4.10.16-24.66.amzn1.x86_64
    libsmbclient-4.10.16-24.66.amzn1.x86_64
    samba-common-libs-4.10.16-24.66.amzn1.x86_64
    ctdb-4.10.16-24.66.amzn1.x86_64
    samba-libs-4.10.16-24.66.amzn1.x86_64
    samba-winbind-krb5-locator-4.10.16-24.66.amzn1.x86_64
    libwbclient-4.10.16-24.66.amzn1.x86_64
    samba-debuginfo-4.10.16-24.66.amzn1.x86_64
    samba-python-test-4.10.16-24.66.amzn1.x86_64
    samba-common-tools-4.10.16-24.66.amzn1.x86_64
    samba-python-4.10.16-24.66.amzn1.x86_64
    samba-client-4.10.16-24.66.amzn1.x86_64
    samba-devel-4.10.16-24.66.amzn1.x86_64
    samba-client-libs-4.10.16-24.66.amzn1.x86_64
    ctdb-tests-4.10.16-24.66.amzn1.x86_64
    libsmbclient-devel-4.10.16-24.66.amzn1.x86_64
    samba-krb5-printing-4.10.16-24.66.amzn1.x86_64
    libwbclient-devel-4.10.16-24.66.amzn1.x86_64
    samba-winbind-clients-4.10.16-24.66.amzn1.x86_64
    samba-test-4.10.16-24.66.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

samba: before 4.10.16-24.66

External links

http://alas.aws.amazon.com/ALAS-2023-1747.html

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.