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Test ID:1.3.6.1.4.1.25623.1.0.810729
Category:General
Title:Samba Server Symlink Race Information Disclosure Vulnerability
Summary:Samba is prone to an information disclosure vulnerability.
Description:Summary:
Samba is prone to an information disclosure vulnerability.

Vulnerability Insight:
The time-of-check, time-of-use race
condition in Samba, a SMB/CIFS file, print, and login server for Unix.
A malicious client can take advantage of this flaw by exploiting a symlink
race to access areas of the server file system not exported under a share
definition.

Vulnerability Impact:
Successful exploitation will allow clients
to access non-exported parts of the file system via symlinks.

Affected Software/OS:
Samba Server versions 4.6.x before 4.6.1,

Samba Server versions 4.4.x before 4.4.12, and

Samba Server versions 4.5.x before 4.5.7.

Solution:
Upgrade to Samba 4.6.1 or 4.4.12 or 4.5.7 or later.

CVSS Score:
6.0

CVSS Vector:
AV:N/AC:M/Au:S/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-2619
BugTraq ID: 97033
http://www.securityfocus.com/bid/97033
Debian Security Information: DSA-3816 (Google Search)
https://www.debian.org/security/2017/dsa-3816
https://www.exploit-db.com/exploits/41740/
RedHat Security Advisories: RHSA-2017:1265
https://access.redhat.com/errata/RHSA-2017:1265
RedHat Security Advisories: RHSA-2017:2338
https://access.redhat.com/errata/RHSA-2017:2338
RedHat Security Advisories: RHSA-2017:2778
https://access.redhat.com/errata/RHSA-2017:2778
RedHat Security Advisories: RHSA-2017:2789
https://access.redhat.com/errata/RHSA-2017:2789
http://www.securitytracker.com/id/1038117
CopyrightCopyright (C) 2017 Greenbone Networks GmbH

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