Multiple vulnerabilities in Emerson DeltaV Distributed Control System Controllers and Workstations
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-26264 CVE-2021-44463 |
| CWE-ID | CWE-306 CWE-427 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software |
DeltaV Distributed Control System Controllers and Workstations Other software / Other software solutions |
| Vendor | Emerson |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Missing Authentication for Critical Function
EUVDB-ID: #VU59151
Risk: Low
CVSSv4.0: 2.3 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-26264
CWE-ID:
CWE-306 - Missing Authentication for Critical Function
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the software that is used for critical functionalities lacks authentication. A remote attacker on the local network can cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsDeltaV Distributed Control System Controllers and Workstations: before R6
CPE2.3 External linkshttps://ics-cert.us-cert.gov/advisories/icsa-21-355-04
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.
2) Insecure DLL loading
EUVDB-ID: #VU59152
Risk: Low
CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-44463
CWE-ID:
CWE-427 - Uncontrolled Search Path Element
Exploit availability: No
DescriptionThe vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local user can place a specially crafted .dll file and gain elevated privileges when some DeltaV services are started.
MitigationInstall updates from vendor's website.
Vulnerable software versionsDeltaV Distributed Control System Controllers and Workstations: before R6
CPE2.3 External linkshttps://ics-cert.us-cert.gov/advisories/icsa-21-355-04
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.
