#VU15327 Use of insufficiently random values in NUUO CMS - CVE-2018-17888

Vulnerability identifier: #VU15327

Vulnerability risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2018-17888

CWE-ID: CWE-330

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
NUUO CMS
Web applications / CMS

Vendor: NUUO Inc.

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to use of insufficiently random values by session identification mechanism. A remote unauthenticated attacker can obtain the active session ID and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 3.3 or later.

Vulnerable software versions

NUUO CMS: before 3.3

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External links
https://ics-cert.us-cert.gov/advisories/ICSA-18-284-02

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.