Vulnerability Details : CVE-2017-2619
Samba before versions 4.6.1, 4.5.7 and 4.4.11 are vulnerable to a malicious client using a symlink race to allow access to areas of the server file system not exported under the share definition.
Exploit prediction scoring system (EPSS) score for CVE-2017-2619
Probability of exploitation activity in the next 30 days: 1.66%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 86 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-2619
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
NIST |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
NIST |
CWE ids for CVE-2017-2619
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2017-2619
-
http://www.securityfocus.com/bid/97033
Samba CVE-2017-2619 Symlink VulnerabilityThird Party Advisory;VDB Entry
-
https://www.debian.org/security/2017/dsa-3816
Debian -- Security Information -- DSA-3816-1 sambaThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1429472
1429472 – (CVE-2017-2619) CVE-2017-2619 samba: symlink race permits opening files outside share directoryIssue Tracking;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:1265
RHSA-2017:1265 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.securitytracker.com/id/1038117
Samba Symlink Race Condition Lets Remote Authenticated Users View Non-Exported Files on the Target System - SecurityTrackerThird Party Advisory;VDB Entry
-
https://www.exploit-db.com/exploits/41740/
Samba 4.5.2 - Symlink Race Permits Opening Files Outside Share DirectoryExploit;Third Party Advisory;VDB Entry
-
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us
HPESBNS03755 rev.2 - HPE NonStop Server using Samba, Multiple Remote VulnerabilitiesThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:2778
RHSA-2017:2778 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://www.samba.org/samba/security/CVE-2017-2619.html
Samba - Security Announcement ArchiveVendor Advisory
-
https://access.redhat.com/errata/RHSA-2017:2789
RHSA-2017:2789 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:2338
RHSA-2017:2338 - Security Advisory - Red Hat Customer PortalThird Party Advisory
Products affected by CVE-2017-2619
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*