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CVE-2019-18897— Local privilege escalation from user salt to root

Quick assessment

Affected
SUSE SUSE Linux Enterprise Server 12
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。 SUSE Linux Enterprise Server和openSUSE Factory中的salt-master存在后置链接漏洞，该漏洞源于不正确的访问控制。攻击者可通过实施符号链接攻击利用该漏洞提升权限至root。以下产品及版本受到影响：S

CVSS 8.4 · High EPSS 0.39% · P32

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2019-18897

Vulnerability Information
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Vulnerability Title
Local privilege escalation from user salt to root
Source: CVE Program / CVE List V5
Vulnerability Description
A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of salt of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15; openSUSE Factory allows local attackers to escalate privileges from user salt to root. This issue affects: SUSE Linux Enterprise Server 12 salt-master version 2019.2.0-46.83.1 and prior versions. SUSE Linux Enterprise Server 15 salt-master version 2019.2.0-6.21.1 and prior versions. openSUSE Factory salt-master version 2019.2.2-3.1 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
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
SUSE openSUSE和SUSE Linux Enterprise Server 后置链接漏洞
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。 SUSE Linux Enterprise Server和openSUSE Factory中的salt-master存在后置链接漏洞，该漏洞源于不正确的访问控制。攻击者可通过实施符号链接攻击利用该漏洞提升权限至root。以下产品及版本受到影响：S
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 12 salt-master ~ 2019.2.0-46.83.1 -
SUSE SUSE Linux Enterprise Server 15 salt-master ~ 2019.2.0-6.21.1 -
openSUSE Factory salt-master ~ 2019.2.2-3.1 -

II. Public POCs for CVE-2019-18897

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III. Intelligence Information for CVE-2019-18897

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Vendor Advisories for CVE-2019-18897 (1)

Mailing List Discussions for CVE-2019-18897 (1)

Same Patch Batch · SUSE · 2020-03-02 · 5 CVEs total

CVE-2019-18902 7.5 HIGH wicked: Use-after-free when receiving invalid DHCP6 client options
CVE-2019-18903 7.5 HIGH wicked: Use-after-free when receiving invalid DHCP6 IA_PD option
CVE-2019-18901 5.1 MEDIUM mysql-systemd-helper allows setting 640 permissions of arbitrary files
CVE-2020-8013 2.2 LOW permissions: chkstat sets unintended setuid/capabilities for mrsh and wodim

IV. Related Vulnerabilities

Same product: SUSE Linux Enterprise Server 12
Same vendor: SUSE
Same weakness: CWE-59

V. Comments for CVE-2019-18897

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