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Juniper Junos OS: 2024-01 Security Bulletin: Junos OS: MX Series and EX9200 Series: If the "tcp-reset" option used in an IPv6 filter, matched packets are accepted instead of rejected (JSA75748) (CVE-2024-21607)

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Juniper Junos OS: 2024-01 Security Bulletin: Junos OS: MX Series and EX9200 Series: If the "tcp-reset" option used in an IPv6 filter, matched packets are accepted instead of rejected (JSA75748) (CVE-2024-21607)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
01/10/2024
Created
01/12/2024
Added
01/11/2024
Modified
01/30/2025

Description

An Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on MX Series and EX9200 Series allows an unauthenticated, network-based attacker to cause partial impact to the integrity of the device. If the "tcp-reset" option is added to the "reject" action in an IPv6 filter which matches on "payload-protocol", packets are permitted instead of rejected. This happens because the payload-protocol match criteria is not supported in the kernel filter causing it to accept all packets without taking any other action. As a fix the payload-protocol match will be treated the same as a "next-header" match to avoid this filter bypass. This issue doesn't affect IPv4 firewall filters. This issue affects Juniper Networks Junos OS on MX Series and EX9200 Series: *All versions earlier than 20.4R3-S7; *21.1 versions earlier than 21.1R3-S5; *21.2 versions earlier than 21.2R3-S5; *21.3 versions earlier than 21.3R3-S4; *21.4 versions earlier than 21.4R3-S4; *22.1 versions earlier than 22.1R3-S2; *22.2 versions earlier than 22.2R3-S2; *22.3 versions earlier than 22.3R2-S2, 22.3R3; *22.4 versions earlier than 22.4R1-S2, 22.4R2-S2, 22.4R3.

Solution(s)

  • juniper-junos-os-upgrade-latest

References

  • https://attackerkb.com/topics/cve-2024-21607
  • CVE - 2024-21607
  • JSA75748
  • 查看数 704
  • 已创建
  • 最后回复

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