RHEL 5 / 6 : samba and samba3x (RHSA-2013:1806)

critical Nessus Plugin ID 71293

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Synopsis

The remote Red Hat host is missing one or more security updates for samba / samba3x.

Description

The remote Redhat Enterprise Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2013:1806 advisory.

Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.

A heap-based buffer overflow flaw was found in the DCE-RPC client code in Samba. A specially crafted DCE-RPC packet could cause various Samba programs to crash or, possibly, execute arbitrary code when parsed.
A malicious or compromised Active Directory Domain Controller could use this flaw to compromise the winbindd daemon running with root privileges.
(CVE-2013-4408)

A flaw was found in the way Samba performed ACL checks on alternate file and directory data streams. An attacker able to access a CIFS share with alternate stream support enabled could access alternate data streams regardless of the underlying file or directory ACL permissions.
(CVE-2013-4475)

Red Hat would like to thank the Samba project for reporting CVE-2013-4408.
Upstream acknowledges Stefan Metzmacher and Michael Adam of SerNet as the original reporters of this issue.

All users of Samba are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the RHEL samba / samba3x packages based on the guidance in RHSA-2013:1806.

Plugin Details

Severity: Critical

ID: 71293

File Name: redhat-RHSA-2013-1806.nasl

Version: 1.30

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 12/10/2013

Updated: 11/4/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2013-4408

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:samba-swat, p-cpe:/a:redhat:enterprise_linux:samba-common, p-cpe:/a:redhat:enterprise_linux:samba-client, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:samba3x-domainjoin-gui, p-cpe:/a:redhat:enterprise_linux:samba3x-swat, p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba3x-common, p-cpe:/a:redhat:enterprise_linux:samba-winbind-devel, p-cpe:/a:redhat:enterprise_linux:samba3x-winbind-devel, p-cpe:/a:redhat:enterprise_linux:samba-domainjoin-gui, p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator, cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:samba3x, p-cpe:/a:redhat:enterprise_linux:samba-winbind, p-cpe:/a:redhat:enterprise_linux:libsmbclient, p-cpe:/a:redhat:enterprise_linux:samba3x-winbind, p-cpe:/a:redhat:enterprise_linux:samba, p-cpe:/a:redhat:enterprise_linux:samba-doc, p-cpe:/a:redhat:enterprise_linux:samba3x-doc, p-cpe:/a:redhat:enterprise_linux:samba3x-client, p-cpe:/a:redhat:enterprise_linux:libsmbclient-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/9/2013

Vulnerability Publication Date: 11/13/2013

Reference Information

CVE: CVE-2013-4408, CVE-2013-4475

BID: 63646, 64191

CWE: 122

RHSA: 2013:1806

Detections

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