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Vulnerability · Published Apr 12, 2024 · Assigned by juniper

CVE-2024-30390Junos OS Evolved: Connection limits is not being enforced while the resp. rate limit is being enforced

Medium 5.3

In plain English

A medium-severity security flaw in Junos OS Evolved from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.5%top 56.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An Improper Restriction of Excessive Authentication Attempts vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited Denial of Service (DoS) to the management plane. When an incoming connection was blocked because it exceeded the connections-per-second rate-limit, the system doesn't consider existing connections anymore for subsequent connection attempts so that the connection limit can be exceeded. This issue affects Junos OS Evolved: * All versions before 21.4R3-S4-EVO, * 22.1-EVO versions before 22.1R3-S3-EVO, * 22.2-EVO versions before 22.2R3-S2-EVO,  * 22.3-EVO versions before 22.3R2-S1-EVO, 22.3R3-EVO.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS Evolved 0 – before 21.4R3-S4-EVO22.1-EVO – before 22.1R3-S3-EVO22.2-EVO – before 22.2R3-S2-EVO22.3-EVO – before 22.3R2-S1-EVO, 22.3R3-EVO

Weakness: CWE-307 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References