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CVE-2022-37439— Malformed ZIP file crashes Universal Forwarders and Splunk Enterprise through file monitoring input

Quick assessment

Affected
Splunk Splunk Enterprise
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.

Splunk是美国Splunk公司的一套数据收集分析软件。该软件主要用于收集、索引和分析及其所产生的数据，包括所有IT系统和基础结构（物理、虚拟机和云）生成的数据。 Splunk Enterprise和Universal Forwarder的8.1.10及之前版本和8.2.0至8.2.7版本存在安全漏洞，该漏洞源于使用文件监控输入对特制的ZIP文件进行索引会导致应用程序崩溃，试图重新启动应用程序会导致崩溃，并且需要手动删除格式错误的文件。

CVSS 5.5 · Medium EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2022-37439

Vulnerability Information
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Vulnerability Title
Malformed ZIP file crashes Universal Forwarders and Splunk Enterprise through file monitoring input
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise and Universal Forwarder versions in the following table, indexing a specially crafted ZIP file using the file monitoring input can result in a crash of the application. Attempts to restart the application would result in a crash and would require manually removing the malformed file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对高度压缩数据的处理不恰当(数据放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
Splunk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Splunk是美国Splunk公司的一套数据收集分析软件。该软件主要用于收集、索引和分析及其所产生的数据，包括所有IT系统和基础结构（物理、虚拟机和云）生成的数据。 Splunk Enterprise和Universal Forwarder的8.1.10及之前版本和8.2.0至8.2.7版本存在安全漏洞，该漏洞源于使用文件监控输入对特制的ZIP文件进行索引会导致应用程序崩溃，试图重新启动应用程序会导致崩溃，并且需要手动删除格式错误的文件。
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
Splunk Splunk Enterprise 8.2 ~ 8.2.7.1 -
Splunk Universal Forwarders 8.1.11 -

II. Public POCs for CVE-2022-37439

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III. Intelligence Information for CVE-2022-37439

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Other References for CVE-2022-37439 (2)

Same Patch Batch · Splunk · 2022-08-16 · 3 CVEs total

CVE-2022-37437 7.4 HIGH Ingest Actions UI in Splunk Enterprise 9.0.0 disabled TLS certificate validation
CVE-2022-37438 2.6 LOW Information disclosure via the dashboard drilldown in Splunk Enterprise

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-409

V. Comments for CVE-2022-37439

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