What is CVE-2018-18370?

CVE-2018-18370 is a medium-severity vulnerability in Broadcom Advanced Secure Gateway, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-30.

How severe is CVE-2018-18370?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Broadcom Advanced Secure Gateway

CVE-2018-18370

The ASG/ProxySG FTP proxy WebFTP mode allows intercepting FTP connections where a user accesses an FTP server via a ftp:// URL in a web browser. A stored cross-site scripting (XSS) vulnerability in the WebFTP mode allows a remote attacker to inject malicious JavaScript code in ASG/ProxySG's web listing of a remote FTP server. Exploiting the vulnerability requires the attacker to be able to upload crafted files to the remote FTP server. Affected versions: ASG 6.6 and 6.7 prior to 6.7.4.2; ProxySG 6.5 prior to 6.5.10.15, 6.6, and 6.7 prior to 6.7.4.2.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (52.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Broadcom Advanced_secure_gateway — versions 6.6
Broadcom Symantec_proxysg — versions 6.6
Symantec Corporation Advanced Secure Gateway (Asg) — versions 6.6 and 6.7 prior to 6.7.4.2
Symantec Corporation Proxysg — versions 6.5 prior to 6.5.10.15, 6.7 prior to 6.7.4.2, 6.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

secure@symantec.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-18370?: CVE-2018-18370 is a medium-severity vulnerability in Broadcom Advanced Secure Gateway, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-30.
How severe is CVE-2018-18370?: Medium severity. CVSS v3 base score is 6.1 out of 10.