CVE-2022-0247— Write access to VMO data through copy-on-write in Fuchsia
Quick assessment
Affected
Google LLC Fuchsia
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Fuchsia是一个开源的通用操作系统。 Fuchsia存在安全漏洞，该漏洞源于软件可以通过访问写时拷贝快照来修改VMO数据。本地攻击者可利用该漏洞可以修改VMO中他们没有权限访问的对象。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2022-0247
Vulnerability Information
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Vulnerability Title
Write access to VMO data through copy-on-write in Fuchsia
Source: CVE Program / CVE List V5
Vulnerability Description
An issue exists in Fuchsia where VMO data can be modified through access to copy-on-write snapshots. A local attacker could modify objects in the VMO that they do not have permission to. We recommend upgrading past commit d97c05d2301799ed585620a9c5c739d36e7b5d3d or any of the listed versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5
Vulnerability Title
Fuchsia 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fuchsia是一个开源的通用操作系统。 Fuchsia存在安全漏洞，该漏洞源于软件可以通过访问写时拷贝快照来修改VMO数据。本地攻击者可利用该漏洞可以修改VMO中他们没有权限访问的对象。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Google LLC | Fuchsia | unspecified ~ 4.1 | - |
|
II. Public POCs for CVE-2022-0247
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2022-0247 (1)
Same Patch Batch · Google LLC · 2022-02-25 · 4 CVEs total
| CVE-2022-25326 | 5.5 MEDIUM | Denial of Service in fscrypt |
| CVE-2022-25327 | 5.5 MEDIUM | Local Denial of Service in fscrypt PAM module |
| CVE-2022-25328 | 5.0 MEDIUM | Privilege escalation through command injection in fscrypt |
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V. Comments for CVE-2022-0247
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