PT-2021-20563 · Phoenix Contact · Phoenix Contact Fl Mguard 1102+1

Published 2021-11-10 · Updated 2022-07-28 · CVE-2021-34582

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Phoenix Contact FL MGUARD 1102 versions 1.4.0 through 1.5.0 Phoenix Contact FL MGUARD 1105 versions 1.4.0 through 1.5.0

Description: A user with high privileges can inject HTML code through web-based management or the REST API with a manipulated certificate file, resulting in a cross-site scripting (XSS) issue. This allows for potential code injection and execution.

Recommendations: For Phoenix Contact FL MGUARD 1102 versions 1.4.0 through 1.5.0, consider disabling web-based management and REST API access until a patch is available. For Phoenix Contact FL MGUARD 1105 versions 1.4.0 through 1.5.0, consider disabling web-based management and REST API access until a patch is available. As a temporary workaround, restrict access to the REST API to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-34582

Affected Products

Phoenix Contact Fl Mguard 1102

Phoenix Contact Fl Mguard 1105

References · 6

• https://osv.dev/vulnerability/CVE-2021-34582 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34582 · Security Note
• https://t.me/cibsecurity/32147 · Telegram Post
• https://t.me/cvenotify/29452 · Telegram Post
• https://t.me/cvenotify/33896 · Telegram Post
• https://cert.vde.com/en/advisories/VDE-2021-046 · Note