Vulnerability identifier: #VU52307

Vulnerability risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0225

CWE-ID: CWE-754

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Junos OS Evolved
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the stateless IP firewall filter does not work as expected. A remote attacker can cause the stateless firewall filter configuration which uses the action "policer" in certain combinations with other options to not take effect.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 19.1R1-EVO

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External links
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11120&cat=SIRT_1&actp=LIST

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.