CVE-2020-25705 Information

Description

A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Based Products (RUGGEDCOM RM1224: All versions between v5.0 and v6.4 SCALANCE M-800: All versions between v5.0 and v6.4 SCALANCE S615: All versions between v5.0 and v6.4 SCALANCE SC-600: All versions prior to v2.1.3 SCALANCE W1750D: v8.3.0.1 v8.6.0 and v8.7.0 SIMATIC Cloud Connect 7: All versions SIMATIC MV500 Family: All versions SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later SIMATIC NET CP 1243-7 LTE EU: Version

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Reference

https://us-cert.cisa.gov/ics/advisories/icsa-21-131-03

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4