Security restrictions bypass in GlusterFS



Published: 2018-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-1112
CWE-ID CWE-287
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		GlusterFS
Server applications / File servers (FTP/HTTP)

Vendor Gluster Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper authentication

EUVDB-ID: #VU12435

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-1112

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper authentication when using 'auth.allow' option. A remote attacker can mount gluster storage volumes.

Mitigation

Update to versions 3.10.12 or 4.0.2.

Vulnerable software versions

GlusterFS: 3.10.0 - 4.0.1

External links

http://review.gluster.org/#/c/19899/1..2


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. However, proof of concept for this vulnerability is available.



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