CVE-2022-29965: High severity emerson deltav distributed control system sx controller vulnerability
The Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords. Access to privileged operations on the maintenance port TELNET interface (23/TCP) on M-series and SIS (CSLS/LSNB/LSNG) nodes is controlled by means of utility passwords. These passwords are generated using a deterministic, insecure algorithm using a single seed value composed of a day/hour/minute timestamp with less than 16 bits of entropy. The seed value is fed through a lookup table and a series of permutation operations resulting in three different four-character passwords corresponding to different privilege levels. An attacker can easily reconstruct these passwords and thus gain access to privileged maintenance operations. NOTE: this is different from CVE-2014-2350.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-29965?
The severity of CVE-2022-29965 is not specified in the available information but it represents a significant security risk due to improper password management.
How does CVE-2022-29965 affect users?
CVE-2022-29965 allows unauthorized access to privileged operations via the TELNET interface, potentially compromising the control systems.
How do I fix CVE-2022-29965?
To fix CVE-2022-29965, it is recommended to update to the latest version of the affected Emerson DeltaV firmware released after April 29, 2022.
What products are affected by CVE-2022-29965?
CVE-2022-29965 affects various versions of the Emerson DeltaV Distributed Control System and associated IO cards up to and including April 29, 2022.
Is there a workaround for CVE-2022-29965?
Currently, there are no specific workarounds mentioned for CVE-2022-29965, so applying the fix by updating the firmware is advised.