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CVE-2019-3693— Local privilege escalation from user wwwrun to root in the packaging of mailman

Quick assessment

Affected
SUSE SUSE Linux Enterprise Server 11
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.

GNU Mailman是GNU计划的一套免费的用于管理电子邮件讨论和电子邮件列表的软件。该软件可与Web项目集成，使用户方便管理邮件订阅帐号，并提供内置归档、自动转发处理、内容过滤和反垃圾过滤器等功能。 GNU Mailman中存在后置链接漏洞。攻击者可利用该漏洞从wwwrun权限提升至root权限。以下产品及版本受到影响：SUSE Linux Enterprise Server 11 mailman 2.1.15-9.6.15.1之前版本，SUSE Linux Enterprise Server 12

CVSS 7.7 · High EPSS 0.36% · P28
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I. Basic Information for CVE-2019-3693

Vulnerability Information
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Vulnerability Title
Local privilege escalation from user wwwrun to root in the packaging of mailman
Source: CVE Program / CVE List V5
Vulnerability Description
A symlink following vulnerability in the packaging of mailman in SUSE Linux Enterprise Server 11, SUSE Linux Enterprise Server 12; openSUSE Leap 15.1 allowed local attackers to escalate their privileges from user wwwrun to root. Additionally arbitrary files could be changed to group mailman. This issue affects: SUSE Linux Enterprise Server 11 mailman versions prior to 2.1.15-9.6.15.1. SUSE Linux Enterprise Server 12 mailman versions prior to 2.1.17-3.11.1. openSUSE Leap 15.1 mailman version 2.1.29-lp151.2.14 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:N
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
GNU Mailman 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU Mailman是GNU计划的一套免费的用于管理电子邮件讨论和电子邮件列表的软件。该软件可与Web项目集成，使用户方便管理邮件订阅帐号，并提供内置归档、自动转发处理、内容过滤和反垃圾过滤器等功能。 GNU Mailman中存在后置链接漏洞。攻击者可利用该漏洞从wwwrun权限提升至root权限。以下产品及版本受到影响：SUSE Linux Enterprise Server 11 mailman 2.1.15-9.6.15.1之前版本，SUSE Linux Enterprise Server 12
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 11 mailman ~ 2.1.15-9.6.15.1 -
SUSE SUSE Linux Enterprise Server 12 mailman ~ 2.1.17-3.11.1 -
openSUSE Leap 15.1 mailman ~ 2.1.29-lp151.2.14 -

II. Public POCs for CVE-2019-3693

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III. Intelligence Information for CVE-2019-3693

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Vendor Advisories for CVE-2019-3693 (1)

Mailing List Discussions for CVE-2019-3693 (1)

Same Patch Batch · SUSE · 2020-01-24 · 4 CVEs total

CVE-2019-3692 7.7 HIGH Local privilege escalation from user news to root in the packaging of inn
CVE-2019-3687 4.0 MEDIUM "easy" permission profile allows everyone execute dumpcap and read all network traffic
CVE-2019-18900 4.0 MEDIUM libzypp stores cookies world readable

IV. Related Vulnerabilities

Same product: SUSE Linux Enterprise Server 11
Same vendor: SUSE
Same weakness: CWE-59

V. Comments for CVE-2019-3693

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