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CVE-2020-8018— User owned /etc in SLES15-SP1-CHOST-BYOS

Quick assessment

Affected
SUSE SUSE Linux Enterprise Server 15 SP1
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.

SUSE Linux Enterprise Server是德国SUSE公司的一套企业服务器版Linux操作系统。 SUSE Linux Enterprise Server 15 SP1中的SLES15-SP1-CHOST-BYOS 1.0.3及之前版本和SLES15-SP1-CAP-Deployment-BYOS 1.0.1及之前版本存在安全漏洞。本地攻击者可利用该漏洞升级为root用户。

CVSS 8.4 · High EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2020-8018

Vulnerability Information
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Vulnerability Title
User owned /etc in SLES15-SP1-CHOST-BYOS
Source: CVE Program / CVE List V5
Vulnerability Description
A Incorrect Default Permissions vulnerability in the SLES15-SP1-CHOST-BYOS and SLES15-SP1-CAP-Deployment-BYOS images of SUSE Linux Enterprise Server 15 SP1 allows local attackers with the UID 1000 to escalate to root due to a /etc directory owned by the user This issue affects: SUSE Linux Enterprise Server 15 SP1 SLES15-SP1-CAP-Deployment-BYOS version 1.0.1 and prior versions; SLES15-SP1-CHOST-BYOS versions prior to 1.0.3 and prior versions;
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
SUSE Linux Enterprise Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SUSE Linux Enterprise Server是德国SUSE公司的一套企业服务器版Linux操作系统。 SUSE Linux Enterprise Server 15 SP1中的SLES15-SP1-CHOST-BYOS 1.0.3及之前版本和SLES15-SP1-CAP-Deployment-BYOS 1.0.1及之前版本存在安全漏洞。本地攻击者可利用该漏洞升级为root用户。
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 Server 15 SP1 SLES15-SP1-CAP-Deployment-BYOS ~ 1.0.1 -
SUSE SUSE Linux Enterprise Server 15 SP1 SLES15-SP1-CHOST-BYOS ~ 1.0.3 -

II. Public POCs for CVE-2020-8018

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III. Intelligence Information for CVE-2020-8018

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Vendor Advisories for CVE-2020-8018 (1)

IV. Related Vulnerabilities

Same product: SUSE Linux Enterprise Server 15 SP1
Same vendor: SUSE
Same weakness: CWE-276

V. Comments for CVE-2020-8018

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