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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

🗓️ 03 Dec 2020 08:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 1 Views

A Linux kernel internet control messages flaw lets off-path attackers bypass UDP port randomization to scan ports.

Related
Detection
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Security Guardium is affected by a kernel vulnerability (CVE-2020-25705, CVE-2020-28374)
4 Nov 202115:59
–ibm
IBM Security Bulletins		Security Bulletin: There are multiple vulnerabilities in the Linux Kernel used in IBM Elastic Storage System
19 May 202109:52
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IBM Security Bulletins		Security Bulletin: Vulnerabilities in the Linux Kernel, Docker, Python, and NGINX affect IBM Spectrum Protect Plus
10 Dec 202118:57
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IBM Security Bulletins		Security Bulletin: IBM Data Risk Manager is affected by multiple vulnerabilities
5 May 202105:44
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IBM Security Bulletins		Security Bulletin: This Power System update is being released to address CVE 2020-25705
7 Dec 202114:16
–ibm
IBM Security Bulletins		Security Bulletin: UDP source port randomization flaw in IBM DataPower Gateway (CVE-2020-25705)
16 Dec 202218:57
–ibm
IBM Security Bulletins		Security Bulletin: IBM MQ Appliance is affected by a Kernel vulnerability (CVE-2020-25705)
22 Dec 202217:30
–ibm
GithubExploit		Exploit for Use of Insufficiently Random Values in Linux Linux_Kernel
14 Nov 202008:53
–githubexploit
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2021:0558)
9 Feb 202200:00
–nessus
Tenable Nessus		CentOS 7 : kernel (RHSA-2021:0856)
18 Mar 202100:00
–nessus
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Vulners
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microsoftcm1_kernel_5.4.91-1Range<5.4.91-1

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03 Dec 2020 08:00Current
8.3High risk
Vulners AI Score8.3
CVSS 25.8
CVSS 3.17.4
EPSS0.0101
internet control messagesudp port randomizationport scan attack
1