RCE in Moxa Awk-3131a
CVE-2019-5138
An exploitable command injection vulnerability exists in encrypted diagnostic script functionality of the Moxa AWK-3131A firmware version 1.13. A specially crafted diagnostic script file can cause arbitrary busybox commands to be executed, resulting in remote control over the device. An attacker can send diagnostic while authenticated as a low privilege user to trigger this vulnerability.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.052 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.052 · newest: 0.052 · change: 0.000
Affected products
- Moxa Awk-3131a
- Moxa Awk-3131a Firmware — versions 1.13
- Moxa — versions Moxa AWK-3131A Firmware version 1.13
Weakness classification (CWE)
References
- talosintelligence.com/vulnerability_reports/TALOS-2019-0927 (Technical Description, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-5138?
- CVE-2019-5138 is a critical-severity vulnerability in Moxa Awk-3131a, classified under OS Command Injection. CVSS score: 9.9/10. Published 2020-02-25.
- How severe is CVE-2019-5138?
- Critical severity. CVSS v3 base score is 9.9 out of 10.