#VU42987 Permissions, Privileges, and Access Controls in Samba - CVE-2013-1863

Vulnerability identifier: #VU42987

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-1863

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Samba
Server applications / Directory software, identity management

Vendor: Samba

Description

The vulnerability allows a remote #AU# to read and manipulate data.

Samba 4.x before 4.0.4, when configured as an Active Directory domain controller, uses world-writable permissions on non-default CIFS shares, which allows remote authenticated users to read, modify, create, or delete arbitrary files via standard filesystem operations.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Samba: 4.0.0 - 4.0.3

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External links
https://www.samba.org/samba/ftp/patches/security/samba-4.0.3-CVE-2013-1863.patch
https://www.samba.org/samba/security/CVE-2013-1863

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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