CVE-2018-5455
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.56% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-565, CWE-287
- Affected
- moxa/oncell g3110-hspa firmware · moxa/oncell g3110-hspa-t firmware · moxa/oncell g3150-hspa firmware · moxa/oncell g3150-hspa-t firmware
- Source
- ics-cert@hq.dhs.gov
References
- https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Patch, Third Party Advisory, US Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Patch, Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.