Auth bypass in Powertekpdus Basic Pdu
CVE-2022-33174
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.
Vulnerability class: Broken Access Control
EPSS: 0.134 (96.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2022-33174?
- CVE-2022-33174 is a critical-severity vulnerability in Powertekpdus Basic Pdu, classified under Incorrect Authorization. CVSS score: 9.8/10. Published 2022-06-13.
- How severe is CVE-2022-33174?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-33174 known to be exploited?
- 15 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.