Information exposure in Juniper Junos OS

1) Information exposure

EUVDB-ID: #VU82507

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22216

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

An Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the PFE of Juniper Networks Junos OS on PTX Series and QFX10k Series allows an adjacent unauthenticated attacker to gain access to sensitive information.

 PTX1000 and PTX10000 Series, and QFX10000 Series and PTX5000 Series devices sometimes do not reliably pad Ethernet packets, and thus some packets can contain fragments of system memory or data from previous packets.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 18.4 - 21.2R1

External links

http://supportportal.juniper.net/s/article/2022-07-Security-Bulletin-Junos-OS-PTX-Series-and-QFX10000-Series-Etherleak-memory-disclosure-in-Ethernet-padding-data-CVE-2022-22216

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.