CVE Vulnerabilities

CVE-2022-0029

Improper Link Resolution Before File Access ('Link Following')

Published: Sep 14, 2022 | Modified: Sep 17, 2022
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

An improper link resolution vulnerability in the Palo Alto Networks Cortex XDR agent on Windows devices allows a local attacker to read files on the system with elevated privileges when generating a tech support file.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Cortex_xdr_agent Paloaltonetworks 5.0 (including) 5.0.12 (excluding)
Cortex_xdr_agent Paloaltonetworks 7.5 (including) 7.5.101 (excluding)
Cortex_xdr_agent Paloaltonetworks 7.7 (including) 7.7.3 (excluding)

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References