Amazon Linux AMI : ctdb (ALAS-2020-1424)

Medium Nessus Plugin ID 140088

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VPR Score: 5.2

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1424 advisory.

- A flaw was found in samba versions 4.9.x up to 4.9.13, samba 4.10.x up to 4.10.8 and samba 4.11.x up to 4.11.0rc3, when certain parameters were set in the samba configuration file. An unauthenticated attacker could use this flaw to escape the shared directory and access the contents of directories outside the share. (CVE-2019-10197)

- A flaw was found in the samba client, all samba versions before samba 4.11.2, 4.10.10 and 4.9.15, where a malicious server can supply a pathname to the client with separators. This could allow the client to access files and folders outside of the SMB network pathnames. An attacker could use this vulnerability to create files outside of the current working directory using the privileges of the client user.
(CVE-2019-10218)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update samba' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1424.html

https://access.redhat.com/security/cve/CVE-2019-10197

https://access.redhat.com/security/cve/CVE-2019-10218

Plugin Details

Severity: Medium

ID: 140088

File Name: ala_ALAS-2020-1424.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2020/08/31

Updated: 2020/08/31

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.2

CVSS Score Source: CVE-2019-10197

CVSS v2.0

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ctdb, p-cpe:/a:amazon:linux:ctdb-tests, p-cpe:/a:amazon:linux:libsmbclient, p-cpe:/a:amazon:linux:libsmbclient-devel, p-cpe:/a:amazon:linux:libwbclient, p-cpe:/a:amazon:linux:libwbclient-devel, p-cpe:/a:amazon:linux:samba, p-cpe:/a:amazon:linux:samba-client, p-cpe:/a:amazon:linux:samba-client-libs, p-cpe:/a:amazon:linux:samba-common, p-cpe:/a:amazon:linux:samba-common-libs, p-cpe:/a:amazon:linux:samba-common-tools, p-cpe:/a:amazon:linux:samba-debuginfo, p-cpe:/a:amazon:linux:samba-devel, p-cpe:/a:amazon:linux:samba-krb5-printing, p-cpe:/a:amazon:linux:samba-libs, p-cpe:/a:amazon:linux:samba-pidl, p-cpe:/a:amazon:linux:samba-python, p-cpe:/a:amazon:linux:samba-python-test, p-cpe:/a:amazon:linux:samba-test, p-cpe:/a:amazon:linux:samba-test-libs, p-cpe:/a:amazon:linux:samba-winbind, p-cpe:/a:amazon:linux:samba-winbind-clients, p-cpe:/a:amazon:linux:samba-winbind-krb5-locator, p-cpe:/a:amazon:linux:samba-winbind-modules, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/08/26

Vulnerability Publication Date: 2019/09/03

Reference Information

CVE: CVE-2019-10197, CVE-2019-10218

ALAS: 2020-1424