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CVE-2019-3681— osc: stores downloaded (supposed) RPM in network-controlled filesystem paths

Quick assessment

Affected
SUSE SUSE Linux Enterprise Module for Development Tools 15
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.

openSUSE和SUSE Linux Enterprise Server都是德国SUSE公司的产品。openSUSE是一套基于Linux的自由操作系统与开源社区项目。SUSE Linux Enterprise Server是一套企业服务器版Linux操作系统。 多款SUSE产品中的osc存在安全漏洞。远程攻击者可利用该漏洞更改下载程序包以覆盖任意文件。以下产品及版本受到影响：SUSE Linux Enterprise Module for Development Tools 15版本（osc 0.169

CVSS 7.5 · High EPSS 1.42% · P72
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I. Basic Information for CVE-2019-3681

Vulnerability Information
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Vulnerability Title
osc: stores downloaded (supposed) RPM in network-controlled filesystem paths
Source: CVE Program / CVE List V5
Vulnerability Description
A External Control of File Name or Path vulnerability in osc of SUSE Linux Enterprise Module for Development Tools 15, SUSE Linux Enterprise Software Development Kit 12-SP5, SUSE Linux Enterprise Software Development Kit 12-SP4; openSUSE Leap 15.1, openSUSE Factory allowed remote attackers that can change downloaded packages to overwrite arbitrary files. This issue affects: SUSE Linux Enterprise Module for Development Tools 15 osc versions prior to 0.169.1-3.20.1. SUSE Linux Enterprise Software Development Kit 12-SP5 osc versions prior to 0.162.1-15.9.1. SUSE Linux Enterprise Software Development Kit 12-SP4 osc versions prior to 0.162.1-15.9.1. openSUSE Leap 15.1 osc versions prior to 0.169.1-lp151.2.15.1. openSUSE Factory osc versions prior to 0.169.0 .
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
多款SUSE产品osc 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openSUSE和SUSE Linux Enterprise Server都是德国SUSE公司的产品。openSUSE是一套基于Linux的自由操作系统与开源社区项目。SUSE Linux Enterprise Server是一套企业服务器版Linux操作系统。 多款SUSE产品中的osc存在安全漏洞。远程攻击者可利用该漏洞更改下载程序包以覆盖任意文件。以下产品及版本受到影响：SUSE Linux Enterprise Module for Development Tools 15版本（osc 0.169
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
SUSE SUSE Linux Enterprise Module for Development Tools 15 osc ~ 0.169.1-3.20.1 -
SUSE SUSE Linux Enterprise Software Development Kit 12-SP5 osc ~ 0.162.1-15.9.1 -
SUSE SUSE Linux Enterprise Software Development Kit 12-SP4 osc ~ 0.162.1-15.9.1 -
openSUSE openSUSE Leap 15.1 osc ~ 0.169.1-lp151.2.15.1 -
openSUSE openSUSE Factory osc ~ 0.169.0 -

II. Public POCs for CVE-2019-3681

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III. Intelligence Information for CVE-2019-3681

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Vendor Advisories for CVE-2019-3681 (1)

Same Patch Batch · SUSE · 2020-06-29 · 3 CVEs total

CVE-2020-8022 7.7 HIGH User-writeable configuration file /usr/lib/tmpfiles.d/tomcat.conf allows for escalation of
CVE-2020-8019 7.7 HIGH syslog-ng: Local privilege escalation from new to root in %post

IV. Related Vulnerabilities

Same vendor: SUSE
Same weakness: CWE-73

V. Comments for CVE-2019-3681

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