Privilege escalation in Junos OS J-Web

1) Information disclosure

EUVDB-ID: #VU59587

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22162

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to excessive data output in the CLI. A local user can force the system to generate error messages that contain enough information to elevate privileges on the system to the level of any other user logged in via J-Web at this time.

Successful exploitation of the vulnerability may allow an attacker to compromise the device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 15.1 - 21.2R1-S2

External links

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11270&cat=SIRT_1&actp=LIST

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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