Router console accessible without authentication
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Hongdian | H8951-4G-ESP | before 2310271149 | 2310271149 | Patch available | CNA |
- H8951-4G-ESP VendorHongdian Affected before 2310271149 Fixed in 2310271149 Patch available CNA
Remediation
- Fix · CNA H8951-4G-ESP (Hongdian) Fixed in 2310271149
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Hongdian H8951-4G-ESP 2310271149
10 records Highest priority Priority MEDIUM 5 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2023-26904 Buffer overflow vulnerability in Cookie authentication fieldPriority MEDIUM 50
- TI-2023-26895 Predefined root passwordPriority MEDIUM 50
- TI-2023-26896 Command injection in the network test toolsPriority MEDIUM 41
Timeline
- 2026-10-02 Threatist record created from CVE-2023-49255
- 2026-10-03 Alias added: GHSA-fw6m-hgqv-hr8c
References
More Hongdian H8951-4g-esp Firmware vulnerabilities
- TI-2023-26904 Buffer overflow vulnerability in Cookie authentication field CVSS 3.1CRITICAL 9.8
- TI-2023-26895 Predefined root password CVSS 3.1CRITICAL 9.8
- TI-2023-26896 Command injection in the network test tools CVSS 3.1HIGH 8.8
- TI-2023-26899 Command execution using the certificate upload utility CVSS 3.1HIGH 8.8
- TI-2023-26903 Sensitive authentication-related value accessible publicly CVSS 3.1HIGH 7.5
- TI-2023-26901 Bruteforcing authentication cookie for a given user CVSS 3.1HIGH 7.5
Sources
- CVE-2023-49255 · CVE Program
- CVE-2023-49255 · NVD
- FIRST EPSS
- GHSA-fw6m-hgqv-hr8c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences