CVE-2017-2619

HIGH

Samba < 4.4.12 - Symlink Race Condition

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2017-2619. PoCs published by Google Security Research.

AI-analyzed exploit summary This exploit demonstrates a race condition in Samba 4.5.2 where an attacker can replace path components with symlinks to access files outside the configured share directory. The PoC involves a race between renaming a symlink and accessing a file, potentially leaking sensitive data.

Description

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.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · textremotemultiple
https://www.exploit-db.com/exploits/41740

This exploit demonstrates a race condition in Samba 4.5.2 where an attacker can replace path components with symlinks to access files outside the configured share directory. The PoC involves a race between renaming a symlink and accessing a file, potentially leaking sensitive data.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Complex
Reliability
Racy
Target: Samba 4.5.2
No auth needed
Prerequisites: Samba 4.5.2 server with a share configured · Write access to the share directory · Network access to the Samba server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (11)

Core 11
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2778
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2017/dsa-3816
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97033
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/41740/
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038117
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2338
Vendor Advisory x_refsource_confirm
https://www.samba.org/samba/security/CVE-2017-2619.html
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1429472
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1265
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:2789

Scores

CVSS v3 7.5
EPSS 0.1118
EPSS Percentile 95.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362 CWE-59
Status published
Products (4)
debian/debian_linux 8.0
redhat/enterprise_linux 6.0
redhat/enterprise_linux 7.0
samba/samba < 4.4.12
Published Mar 12, 2018
Tracked Since Feb 18, 2026