Vulnerability Monitor

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CVE-2020-13529

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.

Published

2021-05-10T16:15:07.373

Last Modified

2024-11-21T05:01:26.123

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.1 (MEDIUM)

CVSSv2 Vector

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

Access Vector: ADJACENT_NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

5.5

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-290
Type: Primary
CWE-290

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	systemd_project	systemd	245	Yes
Operating System	fedoraproject	fedora	33	Yes
Application	netapp	active_iq_unified_manager	-	Yes
Application	netapp	cloud_backup	-	Yes

References

http://www.openwall.com/lists/oss-security/2021/08/04/2 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/08/17/3 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/09/07/3 Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/ ([email protected])
https://security.gentoo.org/glsa/202107-48 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20210625-0005/ Third Party Advisory ([email protected])
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142 Exploit, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/08/04/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/08/17/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/09/07/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202107-48 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210625-0005/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)