gl-b3000_firmware: Unrestricted Upload of File with Dangerous Type
CVE-2024-45263 is a high-severity unrestricted upload of file with dangerous type vulnerability in gl-b3000_firmware from GL.iNet, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists version 4.5.19 as the first without the flaw, so updating gl-b3000_firmware to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.27% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update gl-b3000_firmware to 4.5.19 or a later version.
- Update gl-mt6000_firmware to 4.6.4 or a later version.
- Update gl-x300b_firmware to 4.5.18 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Gl-inet | gl-b3000_firmware | 4.5.18 up to, but not including, 4.5.19 | 4.5.19 |
| Gl-inet | gl-mt6000_firmware | 4.6.2 up to, but not including, 4.6.4 | 4.6.4 |
| Gl-inet | gl-x300b_firmware | 4.5.17 up to, but not including, 4.5.18 | 4.5.18 |
| Gl-inet | gl-xe300_firmware | 4.4.9 up to, but not including, 4.4.10; 4.3.17 up to, but not including, 4.3.18 | 4.4.10, 4.3.18 |
| Gl-inet | gl-x750_firmware | 4.3.18 up to, but not including, 4.3.19 | 4.3.19 |
| Gl-inet | Mt6000 Firmware | 4.6.2 | Not stated |
| Gl-inet | Mt3000 Firmware | 4.6.2 up to, but not including, 4.6.4 | 4.6.4 |
| Gl-inet | Mt2500 Firmware | 4.6.2 up to, but not including, 4.6.4 | 4.6.4 |
| Gl-inet | Axt1800 Firmware | 4.6.2 up to, but not including, 4.6.4 | 4.6.4 |
| Gl-inet | Ax1800 Firmware | 4.6.2 up to, but not including, 4.6.4 | 4.6.4 |
| Gl-inet | B3000 Firmware | 4.5.18 | Not stated |
| Gl-inet | A1300 Firmware | 4.5.17 | Not stated |
| Gl-inet | X300b Firmware | 4.5.17 | Not stated |
| Gl-inet | X3000 Firmware | 4.4.9 | Not stated |
| Gl-inet | Xe3000 Firmware | 4.4.9 | Not stated |
| Gl-inet | X750 Firmware | 4.3.18 | Not stated |
| Gl-inet | Sft1200 Firmware | 4.3.18 | Not stated |
| Gl-inet | Mt1300 Firmware | 4.3.18 | Not stated |
| Gl-inet | E750 Firmware | 4.3.17 | Not stated |
| Gl-inet | Xe300 Firmware | 4.3.17 | Not stated |
| Gl-inet | Ar750 Firmware | 4.3.17 | Not stated |
| Gl-inet | Ar750s Firmware | 4.3.17 | Not stated |
| Gl-inet | Ar300m Firmware | 4.3.17 | Not stated |
| Gl-inet | Ar300m16 Firmware | 4.3.17 | Not stated |
| Gl-inet | B1300 Firmware | 4.3.17 | Not stated |
Version data comes from the organisation that assigned the CVE; 1 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
An issue was discovered on certain GL-iNet devices, including MT6000, MT3000, MT2500, AXT1800, and AX1800 4.6.2. The upload interface allows the uploading of arbitrary files to the device. Once the device executes the files, it can lead to information leakage, enabling complete control.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
How developers prevent this class of flaw
- Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.
- When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
- Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically.
More Unrestricted Upload of File with Dangerous Type vulnerabilities (CWE-434)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- github.com/gl-inet/CVE-issues/blob/main/4.0.0/Arbitrary%20File%20Upload%20to%20ovpn_upload%20via%20Upload%20I…Issue Tracking, Third Party Advisory
Other vulnerabilities in gl-b3000_firmware
- 8.8 High severity
- 8.0 High severity
- 8.0 High severity
Recent Unrestricted Upload of File with Dangerous Type vulnerabilities
- 7.2 High severity
- 9.9 Critical severity
- 9.9 Critical severity
- 10.0 Critical severity
- 9.9 Critical severity
- 9.9 Critical severity
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