MediaTek MT8797 Modem downgrade

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in MediaTek MT6833, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8675, MT8771, MT8791T and MT8797. This vulnerability affects unknown code of the component Modem. Such manipulation leads to downgrade. This vulnerability is uniquely identified as CVE-2024-20069. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in MediaTek MT6833, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8675, MT8771, MT8791T and MT8797. Affected by this issue is an unknown code block of the component Modem. The manipulation with an unknown input leads to a downgrade vulnerability. Using CWE to declare the problem leads to CWE-757. A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used as a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties. Impacted is confidentiality. CVE summarizes:

In modem, there is a possible selection of less-secure algorithm during the VoWiFi IKE due to a missing DH downgrade check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01286330; Issue ID: MSV-1430.

The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2024-20069 since 11/02/2023. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1562.010.

Applying the patch MOLY01286330 is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Downgrade
CWE: CWE-757
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MOLY01286330

Timelineinfo

11/02/2023 🔍
06/03/2024 +213 days 🔍
06/03/2024 +0 days 🔍
06/06/2024 +3 days 🔍

Sourcesinfo

Advisory: MOLY01286330
Status: Confirmed

CVE: CVE-2024-20069 (🔍)
GCVE (CVE): GCVE-0-2024-20069
GCVE (VulDB): GCVE-100-266852

Entryinfo

Created: 06/03/2024 06:54
Updated: 06/06/2024 05:24
Changes: 06/03/2024 06:54 (54), 06/03/2024 12:26 (1), 06/06/2024 05:24 (2)
Complete: 🔍
Cache ID: 216::103

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