Auth bypass in Gl-Inet Gl-A1300
CVE-2023-50919
An issue was discovered on GL.iNet devices before version 4.5.0. There is an NGINX authentication bypass via Lua string pattern matching. This affects A1300 4.4.6, AX1800 4.4.6, AXT1800 4.4.6, MT3000 4.4.6, MT2500 4.4.6, MT6000 4.5.0, MT1300 4.3.7, MT300N-V2 4.3.7, AR750S 4.3.7, AR750 4.3.7, AR300M 4.3.7, and B1300 4.3.7.
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: 0.478 (98.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.478 · newest: 0.478 · change: 0.000
Affected products
- Gl-Inet Gl-A1300
- Gl-Inet Gl-A1300 Firmware — versions 4.3.7, 4.4.6
- Gl-Inet Gl-Ar300m
- Gl-Inet Gl-Ar300m Firmware — versions 4.3.7, 4.4.6
- Gl-Inet Gl-Ar750
- Gl-Inet Gl-Ar750 Firmware — versions 4.3.7, 4.4.6
- Gl-Inet Gl-Ar750s
- Gl-Inet Gl-Ar750s Firmware — versions 4.3.7, 4.4.6
- Gl-Inet Gl-Ax1800
- Gl-Inet Gl-Ax1800 Firmware — versions 4.3.7, 4.4.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/gl-inet/CVE-issues/blob/main/4.0.0/Authentication-bypass.md (Exploit, Issue Tracking, Vendor Advisory)
- packetstormsecurity.com/files/176708/GL.iNet-Unauthenticated-Remote-Command-Exe…
Frequently asked questions
- What is CVE-2023-50919?
- CVE-2023-50919 is a critical-severity vulnerability in Gl-Inet Gl-A1300, classified under Improper Authentication. CVSS score: 9.8/10. Published 2024-01-12.
- How severe is CVE-2023-50919?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-50919 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.