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CVE-2023-40595— Remote Code Execution via Serialized Session Payload

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 存在安全漏洞，该漏洞源于通过执行特制的查询，可以序列化不受信任的数据。

CVSS 8.8 · High EPSS 0.90% · P58

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-40595

Vulnerability Information
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Vulnerability Title
Remote Code Execution via Serialized Session Payload
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise versions lower than 8.2.12, 9.0.6, and 9.1.1, an attacker can execute a specially crafted query that they can then use to serialize untrusted data. The attacker can use the query to execute arbitrary code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Splunk 代码问题漏洞
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 存在安全漏洞，该漏洞源于通过执行特制的查询，可以序列化不受信任的数据。
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 ~ 8.2.12 -
Splunk Splunk Cloud - ~ 9.0.2305.200 -

II. Public POCs for CVE-2023-40595

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III. Intelligence Information for CVE-2023-40595

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Other References for CVE-2023-40595 (2)

Same Patch Batch · Splunk · 2023-08-30 · 8 CVEs total

CVE-2023-4571 8.6 HIGH Unauthenticated Log Injection in Splunk IT Service Intelligence (ITSI)
CVE-2023-40598 8.5 HIGH Command Injection in Splunk Enterprise Using External Lookups
CVE-2023-40592 8.4 HIGH Reflected Cross-site Scripting (XSS) on "/app/search/table" web endpoint
CVE-2023-40597 7.8 HIGH Absolute Path Traversal in Splunk Enterprise Using runshellscript.py
CVE-2023-40596 7.0 HIGH Splunk Enterprise on Windows Privilege Escalation due to Insecure OPENSSLDIR Build Definit
CVE-2023-40594 6.5 MEDIUM Denial of Service (DoS) via the ‘printf’ Search Function
CVE-2023-40593 6.3 MEDIUM Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-502

V. Comments for CVE-2023-40595

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