Lenovo Windows 7 PC Preload/Windows 8 PC Preload 2012/2013/2014 System Recovery Bootloader improper validation of specified quantity in input

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k1.45

Summaryinfo

A vulnerability identified as critical has been detected in Lenovo Windows 7 PC Preload and Windows 8 PC Preload 2012/2013/2014. Impacted is an unknown function of the component System Recovery Bootloader. This manipulation causes improper validation of specified quantity in input. This vulnerability is registered as CVE-2024-23593. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in Lenovo Windows 7 PC Preload and Windows 8 PC Preload 2012/2013/2014 and classified as critical. Affected by this vulnerability is some unknown functionality of the component System Recovery Bootloader. The manipulation with an unknown input leads to a improper validation of specified quantity in input vulnerability. The CWE definition for the vulnerability is CWE-1284. The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability was reported in a system recovery bootloader that was part of the Lenovo preloaded Windows 7 and 8 operating systems from 2012 to 2014 that could allow a privileged attacker with local access to modify the boot manager and escalate privileges.

The weakness was published by Zammis Clark. It is possible to read the advisory at support.lenovo.com. This vulnerability is known as CVE-2024-23593 since 01/18/2024. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (Lenovo Group Ltd.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper validation of specified quantity in input
CWE: CWE-1284 / CWE-703
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/18/2024 🔍
04/15/2024 +87 days 🔍
04/15/2024 +0 days 🔍
04/15/2024 +0 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Researcher: Zammis Clark
Status: Confirmed

CVE: CVE-2024-23593 (🔍)
GCVE (CVE): GCVE-0-2024-23593
GCVE (VulDB): GCVE-100-260815

Entryinfo

Created: 04/15/2024 20:36
Changes: 04/15/2024 20:36 (62)
Complete: 🔍
Cache ID: 216::103

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