Multiple vulnerabilities in Emerson DeltaV DCS Workstations



Risk Medium
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2018-14797
CVE-2018-14795
CVE-2018-14791
CVE-2018-14793
CWE-ID CWE-427
CWE-23
CWE-269
CWE-121
Exploitation vector Network
Public exploit N/A
Vulnerable software
 DeltaV
Hardware solutions / Firmware

Vendor Emerson

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Insecure DLL loading

EUVDB-ID: #VU14444

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-14797

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

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

The vulnerability exists due to insecure .dll loading mechanism when opening files. A local attacker can place a file along with specially crafted .dll file on a remote SBM or WebDAV share, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current victim.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

DeltaV: 11.3.1 - 13.3.1

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-228-01


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.

2) Relative path traversal

EUVDB-ID: #VU14445

Risk: Low

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-14795

CWE-ID: CWE-23 - Relative Path Traversal

Exploit availability: No

Description

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

The vulnerability exists due to improper path validation. A remote attacker can conduct relative path traversal attack and replace executable files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

DeltaV: 11.3.1 - 13.3.1

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-228-01


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Improper privilege management

EUVDB-ID: #VU14446

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-14791

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

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

The vulnerability exists due to improper privilege management. A local attacker can change executable and library files and execute arbitrary code with elevated privileges.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

DeltaV: 11.3.1 - 13.3.1

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-228-01


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.

4) Stack-based buffer overflow

EUVDB-ID: #VU14447

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-14793

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows an adjacent attacker to execute arbitrary code on the target system.

The vulnerability exists due to stack-based buffer overflow. An adjacent attacker can use open communication port to trigger memory corruption and execute arbitrary code with elevated privileges.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

DeltaV: 11.3.1 - 13.3.1

CPE2.3 External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-228-01


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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