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CRITICAL · 9.8

CVE-2021-22731

Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTT...

Vulnerability Description

Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTTP / HTTPS when basic user information is known by a remote attacker.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Schneider-ElectricMcsesp083F23G0 Firmware< 8.22
Schneider-ElectricMcsesp083F23G0-
Schneider-ElectricMcsesp083F23G0T Firmware< 8.22
Schneider-ElectricMcsesp083F23G0T-
Schneider-ElectricMcsesm043F23F0 Firmware< 8.22
Schneider-ElectricMcsesm043F23F0-
Schneider-ElectricMcsesm053F1Cu0 Firmware< 8.22
Schneider-ElectricMcsesm053F1Cu0-
Schneider-ElectricMcsesm063F2Cu0 Firmware< 8.22
Schneider-ElectricMcsesm063F2Cu0-
Schneider-ElectricMcsesm053F1Cs0 Firmware< 8.22
Schneider-ElectricMcsesm053F1Cs0-
Schneider-ElectricMcsesm063F2Cs0 Firmware< 8.22
Schneider-ElectricMcsesm063F2Cs0-
Schneider-ElectricMcsesm083F23F0 Firmware< 8.22
Schneider-ElectricMcsesm083F23F0-
Schneider-ElectricMcsesm103F2Cu0 Firmware< 8.22
Schneider-ElectricMcsesm103F2Cu0-
Schneider-ElectricMcsesm083F23F0H Firmware< 8.22
Schneider-ElectricMcsesm083F23F0H-

Related Weaknesses (CWE)

CWE-640

References

FAQ

What is CVE-2021-22731?

CVE-2021-22731 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Weak Password Recovery Mechanism for Forgotten Password vulnerability exists on Modicon Managed Switch MCSESM* and MCSESP* V8.21 and prior which could cause an unauthorized password change through HTT...

How severe is CVE-2021-22731?

CVE-2021-22731 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-22731?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Mcsesp083F23G0 Firmware, Schneider-Electric Mcsesp083F23G0, Schneider-Electric Mcsesp083F23G0T Firmware, Schneider-Electric Mcsesp083F23G0T, Schneider-Electric Mcsesm043F23F0 Firmware.