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CVE-2023-32712— Unauthenticated Log Injection in Splunk Enterprise

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，该漏洞源于允许攻击者在浏览器使用特制的Web URL来注入日志文件。受影响的产品和版本：Splunk Enterprise 9.0.5之前版本，8.2.11版本， 8.1.14版本。

CVSS 8.6 · High EPSS 0.34% · P25

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2023-32712

Vulnerability Information
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Vulnerability Title
Unauthenticated Log Injection in Splunk Enterprise
Source: CVE Program / CVE List V5
Vulnerability Description
In Splunk Enterprise versions below 9.1.0.2, 9.0.5.1, and 8.2.11.2, an attacker can inject American National Standards Institute (ANSI) escape codes into Splunk log files that, when a vulnerable terminal application reads them, can potentially, at worst, result in possible code execution in the vulnerable application. This attack requires a user to use a terminal application that supports the translation of ANSI escape codes to read the malicious log file locally in the vulnerable terminal, and to perform additional user interaction to exploit. Universal Forwarder versions 9.1.0.1, 9.0.5, 8.2.11, and lower can be vulnerable in situations where they have management services active and accessible over the network. Universal Forwarder versions 9.0.x and 9.1.x bind management services to the local machine and are not vulnerable in this specific configuration. See SVD-2022-0605 for more information. Universal Forwarder versions 9.1 use Unix Domain Sockets (UDS) for communication, which further reduces the potential attack surface. The vulnerability does not directly affect Splunk Enterprise or Universal Forwarder. The indirect impact on Splunk Enterprise and Universal Forwarder can vary significantly depending on the permissions in the vulnerable terminal application and where and how the user reads the malicious log file. For example, users can copy the malicious file from the Splunk Enterprise instance and read it on their local machine.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
日志输出的转义处理不恰当
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存在安全漏洞，该漏洞源于允许攻击者在浏览器使用特制的Web URL来注入日志文件。受影响的产品和版本：Splunk Enterprise 9.0.5之前版本，8.2.11版本， 8.1.14版本。
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 ~ 8.2.11.2 -
Splunk Universal Forwarder 8.2 ~ 8.2.12 -

II. Public POCs for CVE-2023-32712

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III. Intelligence Information for CVE-2023-32712

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Other References for CVE-2023-32712 (2)

Same Patch Batch · Splunk · 2023-06-01 · 12 CVEs total

CVE-2023-32707 8.8 HIGH ‘edit_user’ Capability Privilege Escalation
CVE-2023-32714 8.1 HIGH Path Traversal in Splunk App for Lookup File Editing
CVE-2023-32713 7.8 HIGH Local Privilege Escalation via the ‘streamfwd’ program in Splunk App for Stream
CVE-2023-32706 7.7 HIGH Denial Of Service due to Untrusted XML Tag in XML Parser within SAML Authentication
CVE-2023-32708 7.2 HIGH HTTP Response Splitting via the ‘rest’ SPL Command
CVE-2023-32716 6.5 MEDIUM Denial of Service via the 'dump' SPL command
CVE-2023-32711 5.4 MEDIUM Persistent Cross-Site Scripting (XSS) through a URL Validation Bypass within a Dashboard V
CVE-2023-32710 4.8 MEDIUM Information Disclosure via the ‘copyresults’ SPL Command
CVE-2023-32715 4.7 MEDIUM Self Cross-Site Scripting (XSS) on Splunk App for Lookup File Editing
CVE-2023-32709 4.3 MEDIUM Low-privileged User can View Hashed Default Splunk Password
CVE-2023-32717 4.3 MEDIUM Role-based Access Control (RBAC) Bypass on '/services/indexing/preview' REST Endpoint Can

IV. Related Vulnerabilities

Same product: Splunk Enterprise
Same vendor: Splunk
Same weakness: CWE-117

V. Comments for CVE-2023-32712

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