Cross-site scripting in Cerberus FTP Server

1) Cross-site scripting

EUVDB-ID: #VU30450

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-5195

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data passed via "Reflected XSS through an IMG element" when the attacker. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website .

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update to version 11.0.1.

Vulnerable software versions

FTP Server: 11.0.0

CPE2.3

• cpe:2.3:a:cerberus:ftp_server:11.0.0:*:*:*:*:*:*:*

External links

https://support.cerberusftp.com/hc/en-us/community/topics/360000164199-Announcements
https://www.cerberusftp.com/xss-vulnerability-in-public-shares-fixed-in-cerberus-ftp-server-version-11-0-1-and-10-0-17/
https://www.doyler.net/security-not-included/cerberus-ftp-vulnerabilities

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.