PT-2021-10829 · Unknown · Nsk User Agent String Switcher Service

Published 2021-10-22 · Updated 2021-10-28 · CVE-2020-23054

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 NSK User Agent String Switcher Service version 0.3.5

Description A cross-site scripting (XSS) issue allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the user agent input field. This enables the execution of malicious code on the client-side.

Recommendations For NSK User Agent String Switcher Service version 0.3.5, consider validating and sanitizing user input in the user agent field to prevent the injection of malicious scripts. As a temporary workaround, restrict access to the user agent input field until a patch is available.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-23054

Affected Products

Nsk User Agent String Switcher Service

References · 4

• 🔥 https://vulnerability-lab.com/get_content.php?id=2189 · Exploit
• https://osv.dev/vulnerability/CVE-2020-23054 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-23054 · Security Note
• https://t.me/cvenotify/22541 · Telegram Post