Privilege escalation in GlusterFS



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-10841
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		GlusterFS
Server applications / File servers (FTP/HTTP)

Vendor Gluster Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Privilege escalation

EUVDB-ID: #VU13886

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-10841

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to gain elevated privileges on the target system.

The vulnerability exists due to boundary error when XXXXX. A remote authenticated gluster client via TLS could use gluster cli with --remote-host command to add it self to trusted storage pool and perform privileged gluster operations like adding other machines to trusted storage pool, start, stop, and delete volumes.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GlusterFS: 3.10.0 - 4.0.2

CPE2.3 External links

http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10841


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.



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