PT-2021-21339 · Unknown · Nightscout Web Monitor

Damien Sudol · Published 2021-07-15 · Updated 2021-07-27 · CVE-2021-36755

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 Nightscout Web Monitor (aka cgm-remote-monitor) version 14.2.2

Description The issue allows for XSS via a crafted X-Forwarded-For header. This means an attacker could potentially inject malicious scripts into the website, affecting users who access the page.

Recommendations For Nightscout Web Monitor (aka cgm-remote-monitor) version 14.2.2, consider restricting access to the X-Forwarded-For header until a patch is available. As a temporary workaround, disabling the use of the X-Forwarded-For header in the application configuration may help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-36755

Affected Products

Nightscout Web Monitor

References · 4

• https://github.com/nightscout/cgm-remote-monitor/commit/68f3f90e30cc1da57f7e5069f9c4e1467973521f · Patch
• https://osv.dev/vulnerability/CVE-2021-36755 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36755 · Security Note
• https://t.me/cvenotify/17719 · Telegram Post