Denial of service in Junos OS and Junos OS Evolved rpd



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-44204
CWE-ID CWE-1286
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Junos OS Evolved
Operating systems & Components / Operating system

Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper validation of syntactic correctness of input

EUVDB-ID: #VU82105

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-44204

CWE-ID: CWE-1286 - Improper Validation of Syntactic Correctness of Input

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper validation of syntactic correctness of input in routing protocol daemon (rpd) when a malformed BGP UPDATE packet is received over an established BGP session. A remote non-authenticated attacker can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 22.1R1-EVO - 23.2R1-S1-EVO

Juniper Junos OS: 21.4R1-S1 - 23.2R1-S1

CPE2.3 External links

https://supportportal.juniper.net/s/article/2023-10-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-The-rpd-will-crash-upon-receiving-a-malformed-BGP-UPDATE-message-CVE-2023-44204


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.



###SIDEBAR###