Denial of service in Juniper Junos OS



Published: 2021-04-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-0228
CWE-ID CWE-754
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Check for Unusual or Exceptional Conditions

EUVDB-ID: #VU52309

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0228

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

Exploit availability: No

Description

The vulnerability allows a remote attacke to perform a denial of service (DoS) attack.

The vulnerability exists due to an improper check for unusual or exceptional conditions vulnerability in Juniper MX Series platforms with Trio-based MPC (Modular Port Concentrator). A remote attacker on the local network can cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 15.1R - 20.3R1

External links

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11123&cat=SIRT_1&actp=LIST


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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