Auth bypass in Hongdian H8951-4g-Esp
CVE-2023-49255
The router console is accessible without authentication at "data" field, and while a user needs to be logged in in order to modify the configuration, the session state is shared. If any other user is currently logged in, the anonymous user can execute commands in the context of the authenticated one. If the logged in user has administrative privileges, it is possible to use webadmin service configuration commands to create a new admin user with a chosen password.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Hongdian H8951-4g-Esp — versions 0
- Hongdian H8951-4g-Esp Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cert.pl/en/posts/2024/01/CVE-2023-49253/ (Third Party Advisory, third-party-advisory)
- cert.pl/posts/2024/01/CVE-2023-49253/ (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-49255?
- CVE-2023-49255 is a critical-severity vulnerability in Hongdian H8951-4g-Esp, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2024-01-12.
- How severe is CVE-2023-49255?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-49255 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.