Canonical LXD on Linux UEFI Shell default permission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Canonical LXD on Linux and classified as critical. This impacts an unknown function of the component UEFI Shell Handler. Such manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2023-49721. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Canonical LXD on Linux (the affected version is unknown) and classified as critical. Affected by this issue is an unknown code of the component UEFI Shell Handler. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.

The weakness was disclosed 02/15/2024 by Mate Kukri. The advisory is available at bugs.launchpad.net. This vulnerability is handled as CVE-2023-49721 since 12/05/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

License

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 (Canonical Ltd.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
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

12/05/2023 🔍
02/15/2024 +72 days 🔍
02/15/2024 +0 days 🔍
10/24/2024 +252 days 🔍

Sourcesinfo

Advisory: bugs.launchpad.net
Researcher: Mate Kukri
Status: Not defined

CVE: CVE-2023-49721 (🔍)
GCVE (CVE): GCVE-0-2023-49721
GCVE (VulDB): GCVE-100-253922

Entryinfo

Created: 02/15/2024 09:11
Updated: 10/24/2024 19:53
Changes: 02/15/2024 09:11 (47), 10/24/2024 19:53 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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