Security restrictions bypass in Junos OS Evolved



Published: 2023-10-18
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-44202
CWE-ID CWE-863
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Junos OS Evolved
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Incorrect authorization

EUVDB-ID: #VU82232

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-44202

CWE-ID: CWE-863 - Incorrect Authorization

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect authorization error in TCP packet processing. A remote non-authenticated attacker can manipulate data and bypass a control plane firewall filter.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4 - 22.2-EVO

External links

http://supportportal.juniper.net/s/article/2023-10-Security-Bulletin-Junos-OS-Evolved-Specific-TCP-packets-will-bypass-a-control-plane-firewall-filter-CVE-2023-44202


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.



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