Vulnerability identifier: #VU10829

Vulnerability 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-2018-6186

CWE-ID: CWE-918

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Citrix NetScaler
Server applications / Remote management servers, RDP, SSH

Vendor: Citrix

Description
The vulnerability allows a remote authenticated attacker to perform SSRF-attack on the target system.

The weakness exists due to insufficient validation of user-supplied input. A remote attacker can gain access to the nsroot account, execute commands with root privileges on the target system and perform server-side request forgery attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Citrix NetScaler: 12.0 Build 53.13

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External links
http://support.citrix.com/article/CTX232161

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.