VDB-205415 · CVE-2022-21788 · ALPS06988728

MediaTek MT6879/MT6895/MT6983 SCP Local Privilege Escalation

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.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in MediaTek MT6879, MT6895 and MT6983. It has been rated as problematic. Affected by this issue is some unknown functionality of the component SCP. The manipulation leads to an unknown weakness. This vulnerability is referenced as CVE-2022-21788. The attack can only be performed from a local environment. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in MediaTek MT6879, MT6895 and MT6983 (Chip Software) (version unknown). It has been rated as problematic. This issue affects an unknown function of the component SCP. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In scp, there is a possible undefined behavior due to incorrect error handling. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06988728; Issue ID: ALPS06988728.

The weakness was published 08/01/2022 as ALPS06988728. It is possible to read the advisory at corp.mediatek.com. The identification of this vulnerability is CVE-2022-21788 since 11/26/2021. The technical details are unknown and an exploit is not publicly available.

Applying the patch ALPS06988728 is able to eliminate this problem.

Be aware that VulDB is the high quality 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: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Local Privilege Escalation
CWE: Unknown
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: ALPS06988728

Timelineinfo

11/26/2021 🔍
08/01/2022 +247 days 🔍
08/01/2022 +0 days 🔍
08/01/2022 +0 days 🔍

Sourcesinfo

Advisory: ALPS06988728
Status: Confirmed

CVE: CVE-2022-21788 (🔍)
GCVE (CVE): GCVE-0-2022-21788
GCVE (VulDB): GCVE-100-205415

Entryinfo

Created: 08/01/2022 20:02
Changes: 08/01/2022 20:02 (39)
Complete: 🔍
Cache ID: 216::103