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CVE-2021-25321— arpwatch: Local privilege escalation from runtime user to root

Quick assessment

Affected
SUSE SUSE Linux Enterprise Server 11-SP4-LTSS
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.

arpwatch是美国劳伦斯伯克利国家实验室（Lawrence Berkeley National Laboratory）的一种计算机软件工具，用于监视计算机网络上的地址解析协议流量。 arpwatch 存在安全漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

CVSS 7.8 · High EPSS 0.44% · P36
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I. Basic Information for CVE-2021-25321

Vulnerability Information
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Vulnerability Title
arpwatch: Local privilege escalation from runtime user to root
Source: CVE Program / CVE List V5
Vulnerability Description
A UNIX Symbolic Link (Symlink) Following vulnerability in arpwatch of SUSE Linux Enterprise Server 11-SP4-LTSS, SUSE Manager Server 4.0, SUSE OpenStack Cloud Crowbar 9; openSUSE Factory, Leap 15.2 allows local attackers with control of the runtime user to run arpwatch as to escalate to root upon the next restart of arpwatch. This issue affects: SUSE Linux Enterprise Server 11-SP4-LTSS arpwatch versions prior to 2.1a15. SUSE Manager Server 4.0 arpwatch versions prior to 2.1a15. SUSE OpenStack Cloud Crowbar 9 arpwatch versions prior to 2.1a15. openSUSE Factory arpwatch version 2.1a15-169.5 and prior versions. openSUSE Leap 15.2 arpwatch version 2.1a15-lp152.5.5 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
arpwatch 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
arpwatch是美国劳伦斯伯克利国家实验室（Lawrence Berkeley National Laboratory）的一种计算机软件工具，用于监视计算机网络上的地址解析协议流量。 arpwatch 存在安全漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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-SP4-LTSS arpwatch ~ 2.1a15 -
SUSE SUSE Manager Server 4.0 arpwatch ~ 2.1a15 -
SUSE SUSE OpenStack Cloud Crowbar 9 arpwatch ~ 2.1a15 -
openSUSE Factory arpwatch ~ 2.1a15-169.5 -
openSUSE Leap 15.2 arpwatch ~ 2.1a15-lp152.5.5 -

II. Public POCs for CVE-2021-25321

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III. Intelligence Information for CVE-2021-25321

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Vendor Advisories for CVE-2021-25321 (1)

IV. Related Vulnerabilities

Same product: SUSE Linux Enterprise Server 11-SP4-LTSS
Same vendor: SUSE
Same weakness: CWE-61

V. Comments for CVE-2021-25321

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