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CVE-2021-35939

Quick assessment

Affected
n/a RPM
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.

rpm是一个强大的命令行驱动的软件包管理工具，用来安装、卸载、校验、查询和更新 Linux 系统上的软件包。 rpm存在安全漏洞，该漏洞源于没有对中间目录执行不安全符号链接检查。攻击者利用该漏洞可能会获取到root权限。

AI Predicted 7.8 Difficulty: Easy EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-35939

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
rpm 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
rpm是一个强大的命令行驱动的软件包管理工具，用来安装、卸载、校验、查询和更新 Linux 系统上的软件包。 rpm存在安全漏洞，该漏洞源于没有对中间目录执行不安全符号链接检查。攻击者利用该漏洞可能会获取到root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
- RPM Fixed in RPM-v4.18 -

II. Public POCs for CVE-2021-35939

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III. Intelligence Information for CVE-2021-35939

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Patches & Fixes for CVE-2021-35939 (2)

Vendor Advisories for CVE-2021-35939 (3)

Other References for CVE-2021-35939 (1)

Same Patch Batch · n/a · 2022-08-26 · 53 CVEs total

CVE-2021-4216 Artifex Software MuPDF 数字错误漏洞
CVE-2022-36548 Edoc-doctor-appointment-system 跨站脚本漏洞
CVE-2022-36547 Edoc-doctor-appointment-system 跨站脚本漏洞
CVE-2022-36542 Edoc-doctor-appointment-system 安全漏洞
CVE-2022-36545 Edoc-doctor-appointment-system SQL注入漏洞
CVE-2022-36544 Edoc-doctor-appointment-system SQL注入漏洞
CVE-2022-36543 Edoc-doctor-appointment-system SQL注入漏洞
CVE-2022-36546 Edoc-doctor-appointment-system 跨站请求伪造漏洞
CVE-2022-0084 Red Hat Data Grid 安全漏洞
CVE-2022-25625 Broadcom Symantec Privileged Access Management 安全漏洞
CVE-2022-0168 Linux kernel 代码问题漏洞
CVE-2021-3414 Red Hat Satellite 安全漏洞
CVE-2021-3632 Red Hat Single Sign-On 授权问题漏洞
CVE-2021-3585 openstack-tripleo-heat-templates 安全漏洞
CVE-2021-3563 Red Hat OpenStack Platform 安全漏洞
CVE-2021-3754 Red Hat Keycloak 安全漏洞
CVE-2021-3735 QEMU 安全漏洞
CVE-2021-3703 Red Hat OpenShift 安全漏洞
CVE-2021-3688 Red Hat JBoss Core Services 信息泄露漏洞
CVE-2021-3669 Linux kernel资源管理错误漏洞

Showing top 20 of 53 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: RPM
Same vendor: n/a
Same weakness: CWE-59

V. Comments for CVE-2021-35939

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