Auth bypass in Moxa Oncell G3110-Hspa
CVE-2018-5455
A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Moxa Oncell G3110-Hspa
- Moxa Oncell G3110-Hspa Firmware
- Moxa Oncell G3110-Hspa-T
- Moxa Oncell G3110-Hspa-T Firmware
- Moxa Oncell G3150-Hspa
- Moxa Oncell G3150-Hspa Firmware
- Moxa Oncell G3150-Hspa-T
- Moxa Oncell G3150-Hspa-T Firmware
- Moxa Oncell G3100-Hspa Series — versions Moxa OnCell G3100-HSPA Series
Weakness classification (CWE)
References
- ics-cert.us-cert.gov/advisories/ICSA-18-060-02 (US Government Resource, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5455?
- CVE-2018-5455 is a critical-severity vulnerability in Moxa Oncell G3110-Hspa, classified under Reliance on Cookies without Validation and Integrity Checking. CVSS score: 9.8/10. Published 2018-03-05.
- How severe is CVE-2018-5455?
- Critical severity. CVSS v3 base score is 9.8 out of 10.