CVE-2022-29965

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Third-Party Advisory cisa.gov Third-Party Advisory forescout.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.forescout.com/blog/ third party advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-03 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2022-29965?
CVE-2022-29965 has been scored as a medium severity vulnerability.
How to fix CVE-2022-29965?
To fix CVE-2022-29965, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29965 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29965 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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