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CVE-2022-42917

Quick assessment

Affected
FRRouting FRRouting
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.

FRRouting是FRRouting Project开源的一种在类 Unix 平台上运行的网络路由软件套件。 FRRouting存在安全漏洞，该漏洞源于通过配置创建绕过其限制以提升他的权限。

CVSS 6.7 · Medium
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I. Basic Information for CVE-2022-42917

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In FRRouting FRR before 8.5, the service user (usually frr) can escalate its privileges to root by monitoring the configuration directory (/etc/frr) and replacing config files upon creation with, for example, symlinks to change the ownership of arbitrary files. This is a TOCTOU Race Condition caused by a combination of touch and chown.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
FRRouting 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FRRouting是FRRouting Project开源的一种在类 Unix 平台上运行的网络路由软件套件。 FRRouting存在安全漏洞，该漏洞源于通过配置创建绕过其限制以提升他的权限。
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
FRRouting FRRouting 0 ~ 4.5 -

II. Public POCs for CVE-2022-42917

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III. Intelligence Information for CVE-2022-42917

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Patches & Fixes for CVE-2022-42917 (1)

Vendor Pages for CVE-2022-42917 (2)

IV. Related Vulnerabilities

Same product: FRRouting
Same vendor: FRRouting
Same weakness: CWE-367

V. Comments for CVE-2022-42917

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