MediaTek MT8797 Keyinstall information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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3.3$0-$5k0.00

A vulnerability classified as problematic has been found in MediaTek MT6580, MT6731, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6789, MT6833, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6886, MT6889, MT6891, MT6893, MT6895, MT6983, MT6985, MT8185, MT8321, MT8385, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T and MT8797 (Chip Software). Affected is an unknown function of the component Keyinstall. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

In keyinstall, there is a possible information disclosure due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08017756; Issue ID: ALPS08017764.

The weakness was shared 09/04/2023 as ALPS08017756. The advisory is shared for download at corp.mediatek.com. This vulnerability is traded as CVE-2023-20833 since 10/28/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Applying the patch ALPS08017756 is able to eliminate this problem.

Productinfo

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Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 2.3
VulDB Temp Score: 2.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: Yes
Remote: No

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: ALPS08017756

Timelineinfo

10/28/2022 CVE reserved
09/04/2023 +311 days Advisory disclosed
09/04/2023 +0 days VulDB entry created
09/29/2023 +25 days VulDB entry last update

Sourcesinfo

Advisory: ALPS08017756
Status: Confirmed

CVE: CVE-2023-20833 (🔒)

Entryinfo

Created: 09/04/2023 06:59 AM
Updated: 09/29/2023 10:47 PM
Changes: 09/04/2023 06:59 AM (41), 09/29/2023 10:47 PM (11)
Complete: 🔍

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