CVE-2022-29965

MEDIUM
5.5
CVSS Score
Published: July 26, 2022 at 09:14 PM UTC
Updated: June 17, 2026 at 04:41 AM UTC
49 products affected across 1 vendorSE4801T0X Redundant Wireless I /o Card FirmwareSE4019P0 Simplex H1 4-port Plus Fieldbus I /o Interface with Terminalblock FirmwareVE4107 Iec 61850 Mms Interface for Ethernet Connected I /o (eioc ) Firmware

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2022-04-29
emerson-deltav-distributed-control-system-sq-controller (same device)
v ≤ 2022-04-29
emerson-deltav-distributed-control-system-sx-controller (same device)
v ≤ 2022-04-29
emerson-se4002s1t2b6-high-side-40-pin-mass-i-o-terminal-block (same device)
v ≤ 2022-04-29
emerson-se4003s2b4-16-pin-mass-i-o-terminal-block (same device)
v ≤ 2022-04-29
emerson-se4003s2b524-pin-mass-i-o-terminal-block (same device)
v ≤ 2022-04-29
emerson-se4017p0-h1-i-o-interface-card-and-terminl-block (same device)
v ≤ 2022-04-29
emerson-se4017p1-h1-i-o-card-with-integrated-power (same device)
v ≤ 2022-04-29
emerson-se4019p0-simplex-h1-4-port-plus-fieldbus-i-o-interface-with-terminalblock (same device)
v ≤ 2022-04-29
emerson-se4026-virtual-i-o-module-2 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCThird Party AdvisoryUS Government Resource
https://www.cisa.gov/uscert/ics/advisories/icsa-22-181-03
x_refsource_MISCThird Party Advisory
https://www.forescout.com/blog/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-327

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