CVE-2020-8019— syslog-ng: Local privilege escalation from new to root in %post
Quick assessment
Affected
SUSE SUSE Linux Enterprise Debuginfo 11-SP3
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syslog-ng存在安全漏洞。本地攻击者可利用该漏洞提升权限。以下产品及版本受到影响：SUSE Linux Enterprise Debuginfo 11-SP3版本（syslog-ng 2.0.9-27.34.40.5.1
Possible ATT&CK Techniques 2 AI
T1548 · Abuse Elevation Control Mechanism T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2020-8019
Vulnerability Information
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Vulnerability Title
syslog-ng: Local privilege escalation from new to root in %post
Source: CVE Program / CVE List V5
Vulnerability Description
A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of syslog-ng of SUSE Linux Enterprise Debuginfo 11-SP3, SUSE Linux Enterprise Debuginfo 11-SP4, SUSE Linux Enterprise Module for Legacy Software 12, SUSE Linux Enterprise Point of Sale 11-SP3, SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Linux Enterprise Server for SAP 12-SP1; openSUSE Backports SLE-15-SP1, openSUSE Leap 15.1 allowed local attackers controlling the user news to escalate their privileges to root. This issue affects: SUSE Linux Enterprise Debuginfo 11-SP3 syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Debuginfo 11-SP4 syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Module for Legacy Software 12 syslog-ng versions prior to 3.6.4-12.8.1. SUSE Linux Enterprise Point of Sale 11-SP3 syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Server 11-SP4-LTSS syslog-ng versions prior to 2.0.9-27.34.40.5.1. SUSE Linux Enterprise Server for SAP 12-SP1 syslog-ng versions prior to 3.6.4-12.8.1. openSUSE Backports SLE-15-SP1 syslog-ng versions prior to 3.19.1-bp151.4.6.1. openSUSE Leap 15.1 syslog-ng versions prior to 3.19.1-lp151.3.6.1.
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:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
多款SUSE产品syslog-ng 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syslog-ng存在安全漏洞。本地攻击者可利用该漏洞提升权限。以下产品及版本受到影响：SUSE Linux Enterprise Debuginfo 11-SP3版本（syslog-ng 2.0.9-27.34.40.5.1
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 Debuginfo 11-SP3 | syslog-ng ~ 2.0.9-27.34.40.5.1 | - |
|
| SUSE | SUSE Linux Enterprise Debuginfo 11-SP4 | syslog-ng ~ 2.0.9-27.34.40.5.1 | - |
|
| SUSE | SUSE Linux Enterprise Module for Legacy Software 12 | syslog-ng ~ 3.6.4-12.8.1 | - |
|
| SUSE | SUSE Linux Enterprise Point of Sale 11-SP3 | syslog-ng ~ 2.0.9-27.34.40.5.1 | - |
|
| SUSE | SUSE Linux Enterprise Server 11-SP4-LTSS | syslog-ng ~ 2.0.9-27.34.40.5.1 | - |
|
| SUSE | SUSE Linux Enterprise Server for SAP 12-SP1 | syslog-ng ~ 3.6.4-12.8.1 | - |
|
| openSUSE | openSUSE Backports SLE-15-SP1 | syslog-ng ~ 3.19.1-bp151.4.6.1 | - |
|
| openSUSE | openSUSE Leap 15.1 | syslog-ng ~ 3.19.1-lp151.3.6.1 | - |
|
II. Public POCs for CVE-2020-8019
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|---|
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Vendor Advisories for CVE-2020-8019 (1)
-
https://bugzilla.suse.com/show_bug.cgi?id=1169385 x_refsource_CONFIRM
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-2019-3681 | 7.5 HIGH | osc: stores downloaded (supposed) RPM in network-controlled filesystem paths |
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V. Comments for CVE-2020-8019
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