SB2018071110 - Multiple vulnerabilities in Schweitzer Engineering Compass and AcSELerator Architector

Description

This security bulletin contains information about 3 vulnerabilities.

1) Incorrect default permissions (CVE-ID: CVE-2018-10604)

CWE-ID: CWE-276 - Incorrect Default Permissions

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

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to incorrect default permissions. A local attacker can gain full access to the SEL Compass directory, modifiy or overwrite files within the Compass installation folder, and gain execute arbitrary code with elevated privileges.

2) XXE attack (CVE-ID: CVE-2018-10600)

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:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to conduct XXE attack on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the AcSELerator Architect XML parser, conduct XXE attack and retrieve arbitrary data or cause the service to crash.

3) Resource exhaustion (CVE-ID: CVE-2018-10608)

CWE-ID: CWE-400 - Resource exhaustion

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

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to resource exhaustion when the AcSELerator Architect FTP client connects to a malicious FTP server. A remote attacker can consume memory and cause the service to crash.

Remediation

Install update from vendor's website.

References

• https://ics-cert.us-cert.gov/advisories/ICSA-18-191-02