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CVE-2024-12747— Rsync: race condition in rsync handling symbolic links

Quick assessment

Affected
CVE-2024-12747
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.

Rsync是RsyncProject开源的一款快速且用途广泛的文件复制工具。用于远程文件和本地文件。 Rsync存在竞争条件问题漏洞，该漏洞源于符号链接处理中的竞态条件，导致攻击者能够绕过默认行为，可能泄露敏感信息或引发权限提升。

CVSS 5.6 · Medium EPSS 0.38% · P31

Affected Version Matrix 9

VendorProduct Version RangeStatus
None None ≤ 3.3.0 affected
Red Hat Red Hat Discovery 1.14 1.14.2-1748467619< * unaffected
Red Hat Red Hat Enterprise Linux 10 0:3.4.1-2.el10< * unaffected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 any unknown
Red Hat Red Hat Enterprise Linux 8 0:3.1.3-21.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:3.2.5-3.el9< * unaffected
0:3.2.5-3.el9< * unaffected
Red Hat Red Hat OpenShift Container Platform 4 any affected

I. Basic Information for CVE-2024-12747

Vulnerability Information
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Vulnerability Title
Rsync: race condition in rsync handling symbolic links
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in rsync. This vulnerability arises from a race condition during rsync's handling of symbolic links. Rsync's default behavior when encountering symbolic links is to skip them. If an attacker replaced a regular file with a symbolic link at the right time, it was possible to bypass the default behavior and traverse symbolic links. Depending on the privileges of the rsync process, an attacker could leak sensitive information, potentially leading to privilege escalation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Rsync 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rsync是RsyncProject开源的一款快速且用途广泛的文件复制工具。用于远程文件和本地文件。 Rsync存在竞争条件问题漏洞，该漏洞源于符号链接处理中的竞态条件，导致攻击者能够绕过默认行为，可能泄露敏感信息或引发权限提升。
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
- - 0 ~ 3.3.0 -
Red Hat Red Hat Enterprise Linux 10 0:3.4.1-2.el10 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red Hat Red Hat Enterprise Linux 8 0:3.1.3-21.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 9 0:3.2.5-3.el9 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9 0:3.2.5-3.el9 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Discovery 1.14 1.14.2-1748467619 ~ * cpe:/a:redhat:discovery:1.14::el9
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat OpenShift Container Platform 4 - cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2024-12747

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III. Intelligence Information for CVE-2024-12747

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Vendor Advisories for CVE-2024-12747 (5)

IV. Related Vulnerabilities

Same weakness: CWE-362

V. Comments for CVE-2024-12747

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