#VU36617 Input validation error in tgstation-server - CVE-2018-17107

Vulnerability identifier: #VU36617

Vulnerability risk: High

CVSSv4.0: 8.1 [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:U/U:Amber]

CVE-ID: CVE-2018-17107

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
tgstation-server
Server applications / Other server solutions

Vendor: tgstation13.org

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

In Tgstation tgstation-server 3.2.4.0 through 3.2.1.0 (fixed in 3.2.5.0), active logins would be cached, allowing subsequent logins to succeed with any username or password.

Mitigation
Install update from vendor's website.

Vulnerable software versions

tgstation-server: 3.2.1.0 - 3.2.4.0

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External links
https://github.com/tgstation/tgstation-server/issues/690

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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.