CVE-2022-33174

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 14.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-06-13 · updated 2026-06-17
Weakness: CWE-863

Description

Power Distribution Units running on Powertek firmware (multiple brands) before 3.30.30 allows remote authorization bypass in the web interface. To exploit the vulnerability, an attacker must send an HTTP packet to the data retrieval interface (/cgi/get_param.cgi) with the tmpToken cookie set to an empty string followed by a semicolon. This bypasses an active session authorization check. This can be then used to fetch the values of protected sys.passwd and sys.su.name fields that contain the username and password in cleartext.

Affected products

Powertekpdus Basic Pdu Firmware: before 3.30.30 — fixed in 3.30.30
Powertekpdus Piml Pdu Firmware: before 3.30.30 — fixed in 3.30.30
Powertekpdus Pm Pdu Firmware: before 3.30.30 — fixed in 3.30.30
Powertekpdus Smart Pim Firmware: before 3.30.30 — fixed in 3.30.30
Powertekpdus Smart Pom Firmware: before 3.30.30 — fixed in 3.30.30
Powertekpdus Smart Poms Firmware: before 3.30.30 — fixed in 3.30.30
Powertekpdus Smart Pos Firmware: before 3.30.30 — fixed in 3.30.30

How to fix

Upgrade to a fixed version: Powertekpdus Basic Pdu Firmware 3.30.30; Powertekpdus Piml Pdu Firmware 3.30.30; Powertekpdus Pm Pdu Firmware 3.30.30; Powertekpdus Smart Pim Firmware 3.30.30; Powertekpdus Smart Pom Firmware 3.30.30; Powertekpdus Smart Poms Firmware 3.30.30; Powertekpdus Smart Pos Firmware 3.30.30. Check the vendor advisory for mitigations.

References

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