MT2737, MT6989, MT6991, MT7925, MT8365…: Missing Critical Step in Authentication
CVE-2024-20153 is a high-severity missing critical step in authentication vulnerability in MT2737, MT6989, MT6991, MT7925, MT8365, MT8518S, MT8532, MT8666, MT8667, MT8673, MT8676, MT8678, MT8755, MT8766, MT8768, MT8775, MT8781, MT8786, MT8788, MT8796, MT8798, MT8893 from MediaTek, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.33% 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
- Check which version of MT2737, MT6989, MT6991, MT7925, MT8365, MT8518S, MT8532, MT8666, MT8667, MT8673, MT8676, MT8678, MT8755, MT8766, MT8768, MT8775, MT8781, MT8786, MT8788, MT8796, MT8798, MT8893 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on corp.mediatek.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| MediaTek | MT2737, MT6989, MT6991, MT7925, MT8365, MT8518S, MT8532, MT8666, MT8667, MT8673, MT8676, MT8678, MT8755, MT8766, MT8768, MT8775, MT8781, MT8786, MT8788, MT8796, MT8798, MT8893 | Not specified in the record | Not stated |
| Linux Foundation | Yocto | 3.3; 4.0; 5.0 | Not stated |
| MediaTek | Software Development Kit | 3.5 and earlier | Not stated |
| Android | 14.0; 15.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- 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
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CISA (ADP).
Official description
In wlan STA, there is a possible way to trick a client to connect to an AP with spoofed SSID. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08990446 / ALPS09057442; Issue ID: MSV-1598.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Missing Critical Step in Authentication
The product implements an authentication technique, but it skips a step that weakens the technique.
More Missing Critical Step in Authentication vulnerabilities (CWE-304)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Recent Missing Critical Step in Authentication vulnerabilities
- 9.8 Critical severity
- 7.4 High severity
- 9.8 Critical severity
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