SB2022040116 - XML External Entity injection in Schneider Electric SCADAPack Workbench

Description

This security bulletin contains information about 1 vulnerability.

1) XML External Entity injection (CVE-ID: CVE-2022-0221)

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can trick a victim to open a specially crafted file and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://ics-cert.us-cert.gov/advisories/icsa-22-090-01
• https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-087-01
• https://www.zerodayinitiative.com/advisories/ZDI-22-583/
• https://www.zerodayinitiative.com/advisories/ZDI-22-582/