Permissions, Privileges, and Access Controls in Samba



| Updated: 2020-07-28
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-4475
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Samba
Server applications / Directory software, identity management

Vendor Samba

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU32622

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-4475

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Samba 3.2.x through 3.6.x before 3.6.20, 4.0.x before 4.0.11, and 4.1.x before 4.1.1, when vfs_streams_depot or vfs_streams_xattr is enabled, allows remote attackers to bypass intended file restrictions by leveraging ACL differences between a file and an associated alternate data stream (ADS).

Mitigation

Install update from vendor's website.

Vulnerable software versions

Samba: 3.2.0 - 3.2.15

CPE2.3 External links

https://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html
https://lists.opensuse.org/opensuse-security-announce/2014-01/msg00002.html
https://lists.opensuse.org/opensuse-updates/2013-11/msg00083.html
https://lists.opensuse.org/opensuse-updates/2013-11/msg00115.html
https://lists.opensuse.org/opensuse-updates/2013-11/msg00117.html
https://lists.opensuse.org/opensuse-updates/2013-12/msg00088.html
https://rhn.redhat.com/errata/RHSA-2013-1806.html
https://rhn.redhat.com/errata/RHSA-2014-0009.html
https://secunia.com/advisories/56508
https://security.gentoo.org/glsa/glsa-201502-15.xml
https://www.debian.org/security/2013/dsa-2812
https://www.samba.org/samba/history/samba-3.6.20.html
https://www.samba.org/samba/history/samba-4.0.11.html
https://www.samba.org/samba/history/samba-4.1.1.html
https://www.samba.org/samba/security/CVE-2013-4475
https://www.securityfocus.com/bid/63646
https://www.ubuntu.com/usn/USN-2054-1
https://blogs.oracle.com/sunsecurity/entry/cve_2013_4475_access_control
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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