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redhatcveRedhat.comRH:CVE-2020-13529
HistoryMay 11, 2021 - 8:53 p.m.

CVE-2020-13529

2021-05-1120:53:45
redhat.com
access.redhat.com
25
systemd
denial of service
dhcp
forcerenew
vulnerability
authentication
spoofing attack
network settings

CVSS2

2.9

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.1

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

49.6%

JSON

An exploitable denial of service vulnerability exists in systemd which does not fully implement RFC3203, as it does not support authentication of FORCERENEW packets. A specially crafted DHCP FORCERENEW packet can cause a system, running the DHCP client, to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHPACK packets to reconfigure the system with arbitrary network settings.

Mitigation

There is no available mitigation for this issue.

Related

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K000137002 : systemd vulnerability CVE-2020-13529
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CVSS2

2.9

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.1

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

49.6%

JSON
Related for RH:CVE-2020-13529
nessus35f51talos1rocky1openvas22osv7prion1altlinux2almalinux1veracode1debiancve1redhat1cve1nvd1cvelist1ubuntucve1photon7archlinux1oraclelinux1gentoo1suse1ubuntu2cloudfoundry1fedora1redos1mageia1amazon1kitploit1ics1avleonov1