PT-2021-11111 · Mimosa · Mimosa C5X+1

Published 2021-07-20 · Updated 2021-07-30 · CVE-2020-25205

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Mimosa B5, B5c, and C5x firmware versions through 2.8.0.2

Description: The issue concerns a stored XSS vulnerability in the set banner() function of /var/www/core/controller/index.php, allowing an unauthenticated attacker to set the contents of the /mnt/jffs2/banner.txt file to contain arbitrary JavaScript. This file's contents are used as part of a welcome/banner message presented to unauthenticated users visiting the login page for the web console.

Recommendations: For Mimosa B5, B5c, and C5x firmware versions through 2.8.0.2, consider disabling the set banner() function until a patch is available to prevent exploitation of the stored XSS vulnerability. Restrict access to the /mnt/jffs2/banner.txt file to minimize the risk of arbitrary JavaScript execution. Avoid using the /var/www/core/controller/index.php endpoint with unauthenticated access until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-25205

Affected Products

Mimosa B5C

Mimosa C5X

References · 4

• 🔥 https://labs.f-secure.com/advisories/mimosa-ptp-devices-multiple-vulnerabilities · Exploit
• https://osv.dev/vulnerability/CVE-2020-25205 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-25205 · Security Note
• https://labs.f-secure.com/advisories · Note