Executive Summary

Informations
Name CVE-2013-6442 First vendor Publication 2014-03-14
Vendor Cve Last vendor Modification 2017-01-07

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N)
Cvss Base Score 5.8 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The owner_set function in smbcacls.c in smbcacls in Samba 4.0.x before 4.0.16 and 4.1.x before 4.1.6 removes an ACL during use of a --chown or --chgrp option, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging an unintended administrative change.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6442

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:24297
 
Oval ID: oval:org.mitre.oval:def:24297
Title: RHSA-2014:0383: samba4 security update (Moderate)
Description: 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. It was found that certain Samba configurations did not enforce the password lockout mechanism. A remote attacker could use this flaw to perform password guessing attacks on Samba user accounts. Note: this flaw only affected Samba when deployed as a Primary Domain Controller. (CVE-2013-4496) A flaw was found in Samba's "smbcacls" command, which is used to set or get ACLs on SMB file shares. Certain command line options of this command would incorrectly remove an ACL previously applied on a file or a directory, leaving the file or directory without the intended ACL. (CVE-2013-6442) A flaw was found in the way the pam_winbind module handled configurations that specified a non-existent group as required. An authenticated user could possibly use this flaw to gain access to a service using pam_winbind in its PAM configuration when group restriction was intended for access to the service. (CVE-2012-6150) Red Hat would like to thank the Samba project for reporting CVE-2013-4496 and CVE-2013-6442, and Sam Richardson for reporting CVE-2012-6150. Upstream acknowledges Andrew Bartlett as the original reporter of CVE-2013-4496, and Noel Power as the original reporter of CVE-2013-6442. 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.
Family: unix Class: patch
Reference(s): RHSA-2014:0383-00
CESA-2014:0383
CVE-2012-6150
CVE-2013-4496
CVE-2013-6442
Version: 3
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
Product(s): samba4
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:24775
 
Oval ID: oval:org.mitre.oval:def:24775
Title: ELSA-2014:0383: samba4 security update (Moderate)
Description: 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. It was found that certain Samba configurations did not enforce the password lockout mechanism. A remote attacker could use this flaw to perform password guessing attacks on Samba user accounts. Note: this flaw only affected Samba when deployed as a Primary Domain Controller. (CVE-2013-4496) A flaw was found in Samba's "smbcacls" command, which is used to set or get ACLs on SMB file shares. Certain command line options of this command would incorrectly remove an ACL previously applied on a file or a directory, leaving the file or directory without the intended ACL. (CVE-2013-6442) A flaw was found in the way the pam_winbind module handled configurations that specified a non-existent group as required. An authenticated user could possibly use this flaw to gain access to a service using pam_winbind in its PAM configuration when group restriction was intended for access to the service. (CVE-2012-6150) Red Hat would like to thank the Samba project for reporting CVE-2013-4496 and CVE-2013-6442, and Sam Richardson for reporting CVE-2012-6150. Upstream acknowledges Andrew Bartlett as the original reporter of CVE-2013-4496, and Noel Power as the original reporter of CVE-2013-6442. 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.
Family: unix Class: patch
Reference(s): ELSA-2014:0383-00
CVE-2012-6150
CVE-2013-4496
CVE-2013-6442
Version: 5
Platform(s): Oracle Linux 6
Product(s): samba4
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26077
 
Oval ID: oval:org.mitre.oval:def:26077
Title: DEPRECATED: ELSA-2014-0383 -- samba4 security update (Moderate)
Description: 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. It was found that certain Samba configurations did not enforce the password lockout mechanism. A remote attacker could use this flaw to perform password guessing attacks on Samba user accounts. Note: this flaw only affected Samba when deployed as a Primary Domain Controller. (CVE-2013-4496) A flaw was found in Samba's "smbcacls" command, which is used to set or get ACLs on SMB file shares. Certain command line options of this command would incorrectly remove an ACL previously applied on a file or a directory, leaving the file or directory without the intended ACL. (CVE-2013-6442) A flaw was found in the way the pam_winbind module handled configurations that specified a non-existent group as required. An authenticated user could possibly use this flaw to gain access to a service using pam_winbind in its PAM configuration when group restriction was intended for access to the service. (CVE-2012-6150) Red Hat would like to thank the Samba project for reporting CVE-2013-4496 and CVE-2013-6442, and Sam Richardson for reporting CVE-2012-6150. Upstream acknowledges Andrew Bartlett as the original reporter of CVE-2013-4496, and Noel Power as the original reporter of CVE-2013-6442. 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.
Family: unix Class: patch
Reference(s): ELSA-2014-0383
CVE-2012-6150
CVE-2013-4496
CVE-2013-6442
Version: 4
Platform(s): Oracle Linux 6
Product(s): samba4
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 22

Nessus® Vulnerability Scanner

Date Description
2014-08-20 Name : The remote Fedora host is missing a security update.
File : fedora_2014-9132.nasl - Type : ACT_GATHER_INFO
2014-06-26 Name : The remote Fedora host is missing a security update.
File : fedora_2014-7672.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2014-228.nasl - Type : ACT_GATHER_INFO
2014-04-11 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-0383.nasl - Type : ACT_GATHER_INFO
2014-04-10 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-0383.nasl - Type : ACT_GATHER_INFO
2014-04-10 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-0383.nasl - Type : ACT_GATHER_INFO
2014-04-10 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20140409_samba4_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2014-03-28 Name : The remote Fedora host is missing a security update.
File : fedora_2014-3815.nasl - Type : ACT_GATHER_INFO
2014-03-18 Name : The remote Samba server is affected by multiple vulnerabilities.
File : samba_4_1_6.nasl - Type : ACT_GATHER_INFO
2014-03-17 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2014-072-01.nasl - Type : ACT_GATHER_INFO
2014-03-17 Name : The remote Fedora host is missing a security update.
File : fedora_2014-3796.nasl - Type : ACT_GATHER_INFO
2014-03-12 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_03e48bf5a96d11e3a5563c970e169bc2.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/66232
CONFIRM http://www.samba.org/samba/history/samba-4.0.16.html
http://www.samba.org/samba/history/samba-4.1.6.html
http://www.samba.org/samba/security/CVE-2013-6442
https://bugzilla.samba.org/show_bug.cgi?id=10327
FEDORA http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864....
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html
SUSE http://lists.opensuse.org/opensuse-updates/2014-03/msg00062.html

Alert History

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Date Informations
2021-05-04 12:28:10
  • Multiple Updates
2021-04-22 01:33:58
  • Multiple Updates
2020-05-23 00:38:41
  • Multiple Updates
2017-01-11 13:25:28
  • Multiple Updates
2017-01-07 09:25:14
  • Multiple Updates
2016-04-26 23:46:55
  • Multiple Updates
2014-07-17 09:21:55
  • Multiple Updates
2014-06-14 13:36:32
  • Multiple Updates
2014-04-12 13:22:55
  • Multiple Updates
2014-04-11 13:22:02
  • Multiple Updates
2014-03-29 13:23:47
  • Multiple Updates
2014-03-26 13:22:56
  • Multiple Updates
2014-03-19 13:21:29
  • Multiple Updates
2014-03-18 13:23:08
  • First insertion