Vulnerability identifier: #VU78282
Vulnerability risk: Medium
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:
CWE-ID:
CWE-20
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Juniper Junos OS
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Connectivity Fault Management(CFM) module of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) . A remote attacker on the local network can send a malformed CFM packet to the affected system and crash the MPC.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Juniper Junos OS: 22.3R1 - 22.3R1-S2, 22.1R1 - 22.1R3-S1, 20.4 - 20.4R3-S6, 19.4 - 19.4R3-S11, 19.4R1 - 19.4R1-S4, 19.2 - 19.2R3-S6, 19.2R1-S4, 19.1 - 19.1R3-S9, 19.1R1-S4, 21.4R1 - 21.4R3-S2, 22.4R1 - 22.4R1-S2, 21.1 - 21.1R3-S4, 22.2R1 - 22.2R2-S2, 20.2 - 20.2R3-S6, 21.3R1 - 21.3R3-S3, 21.2R1 - 21.2R3-S3
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.