Insecure default permissions in log4js-node



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-21704
CWE-ID CWE-276
Exploitation vector Local
Public exploit N/A
Vulnerable software
 log4js-node
Web applications / Modules and components for CMS

Vendor log4js-node

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Incorrect default permissions

EUVDB-ID: #VU61582

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-21704

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

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

The vulnerability exists due to incorrect default permissions for log files created by the file, fileSync and dateFile appenders. A local user with access to the system can view contents of files and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

log4js-node: 0.5.0 - 6.3.0

CPE2.3 External links

https://github.com/log4js-node/log4js-node/blob/v6.4.0/CHANGELOG.md#640
https://github.com/log4js-node/log4js-node/pull/1141/commits/8042252861a1b65adb66931fdf702ead34fa9b76
https://github.com/log4js-node/streamroller/pull/87
https://github.com/log4js-node/log4js-node/security/advisories/GHSA-82v2-mx6x-wq7q


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.



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