PT-2021-22843 · Rittal · Rittal Cmc Pu Iii

Asang17 · Published 2021-09-09 · Updated 2021-09-22 · CVE-2021-40222

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Rittal CMC PU III Web management versions V3.11.00 2 through V3.17.10

Description The issue is related to a remote code execution vulnerability. It is possible to introduce shell code to create a reverse shell in the PU-Hostname field of the TCP/IP Configuration dialog. The web application fails to sanitize user input on the Network TCP/IP configuration page, allowing an attacker to inject commands as root on the device, which will be executed once the data is received.

Recommendations For versions V3.11.00 2 through V3.17.10, update to a version later than V3.17.10 to resolve the issue. As a temporary workaround, consider restricting access to the TCP/IP Configuration dialog to minimize the risk of exploitation. Avoid using the PU-Hostname field in the TCP/IP Configuration dialog until the issue is resolved.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2021-40222

Affected Products

Rittal Cmc Pu Iii

References · 5

• 🔥 https://github.com/asang17/CVE-2021-RCE · Exploit
• https://osv.dev/vulnerability/CVE-2021-40222 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40222 · Security Note
• https://t.me/cibsecurity/28573 · Telegram Post
• https://t.me/cvenotify/21255 · Telegram Post