VDB-255596 · CVE-2024-20020 · ALPS08522504

MediaTek MT2713/MT2715/MT8173/MT8188/MT8195/MT8390/MT8395 OPTEE 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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.3	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in MediaTek MT2713, MT2715, MT8173, MT8188, MT8195, MT8390 and MT8395. Affected by this vulnerability is an unknown functionality of the component OPTEE. Such manipulation leads to information disclosure. This vulnerability is documented as CVE-2024-20020. The attack needs to be performed locally. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in MediaTek MT2713, MT2715, MT8173, MT8188, MT8195, MT8390 and MT8395 (Chip Software) and classified as problematic. Affected by this issue is an unknown code block of the component OPTEE. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

In OPTEE, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08522504; Issue ID: ALPS08522504.

The weakness was released 03/04/2024 as ALPS08522504. The advisory is shared for download at corp.mediatek.com. This vulnerability is handled as CVE-2024-20020 since 11/02/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Applying the patch ALPS08522504 is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Chip Software

Vendor

MediaTek

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS08522504

Timelineinfo

11/02/2023 🔍
03/04/2024 +123 days 🔍
03/04/2024 +0 days 🔍
01/30/2025 +332 days 🔍

Sourcesinfo

Advisory: ALPS08522504
Status: Confirmed

CVE: CVE-2024-20020 (🔍)
GCVE (CVE): GCVE-0-2024-20020
GCVE (VulDB): GCVE-100-255596

Entryinfo

Created: 03/04/2024 07:36
Updated: 01/30/2025 16:38
Changes: 03/04/2024 07:36 (41), 01/30/2025 16:38 (27)
Complete: 🔍
Cache ID: 216::103