RCE in Quest Kace System Management Appliance

CVE-2018-11139

The '/common/ajax_email_connection_test.php' script in the Quest KACE System Management Appliance 8.0.318 is accessible by any authenticated user and can be abused to execute arbitrary commands on the system. This script is vulnerable to command injection via the unsanitized user input 'TEST_SERVER' sent to the script via the POST method.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.424 (98.7th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-11139: fell from 0.429 to 0.424.

EPSS over last 30 days · oldest: 0.429 · newest: 0.424 · change: -0.005

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-11139?
CVE-2018-11139 is a high-severity vulnerability in Quest Kace System Management Appliance, classified under OS Command Injection. CVSS score: 8.8/10. Published 2018-05-31.
How severe is CVE-2018-11139?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2018-11139 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.