{"id":8952,"date":"2025-12-05T10:03:31","date_gmt":"2025-12-05T10:03:31","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2025\/12\/05\/splunk-enterprise-vulnerabilities-allows-privileges-escalation-via-incorrect-file-permissions\/"},"modified":"2025-12-05T10:03:31","modified_gmt":"2025-12-05T10:03:31","slug":"splunk-enterprise-vulnerabilities-allows-privileges-escalation-via-incorrect-file-permissions","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2025\/12\/05\/splunk-enterprise-vulnerabilities-allows-privileges-escalation-via-incorrect-file-permissions\/","title":{"rendered":"Splunk Enterprise Vulnerabilities Allows Privileges Escalation Via Incorrect File Permissions"},"content":{"rendered":"

Splunk Enterprise Vulnerabilities Allows Privileges Escalation Via Incorrect File Permissions
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A high-severity vulnerability has been disclosed in Splunk affecting its Enterprise and Universal Forwarder products for Windows, stemming from incorrect file permissions during installation and upgrades.<\/p>\n

The vulnerability, tracked as CVE-2025-20386 for Splunk Enterprise and CVE-2025-20387 for Universal Forwarder.<\/p>\n

Allows non-administrator users to access sensitive installation directories and their contents, creating a pathway for privilege escalation<\/a> attacks.<\/p>\n

Improper File Permissions to Gain Elevated System Access<\/strong><\/h2>\n

The flaw emerges during fresh installations or version upgrades of affected Splunk products on Windows systems<\/a>. <\/p>\n

The installation process incorrectly assigns permissions to the default installation directories C:Program FilesSplunk for Enterprise and C:Program FilesSplunkUniversalForwarder for Universal Forwarder.<\/p>\n

This misconfiguration grants unprivileged local users read and write access to sensitive configuration files.<\/p>\n

\n\n\n\n\n\n\n\n\n
Metric<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
CVE ID<\/strong><\/td>\nCVE-2025-20386 (Enterprise), CVE-2025-20387<\/a> (Forwarder)<\/td>\n<\/tr>\n
CVSS Score<\/strong><\/td>\n8.0 (High)<\/td>\n<\/tr>\n
CVSS Vector<\/strong><\/td>\nCVSS:3.1\/AV:N\/AC:L\/PR:L\/UI:R\/S:U\/C:H\/I:H\/A:H<\/td>\n<\/tr>\n
CWE<\/strong><\/td>\nCWE-732 (Incorrect Permission Assignment)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

Executable binaries and other critical components should remain restricted to administrators.<\/p>\n

An attacker with local access could exploit these permissions to modify system configuration, inject malicious code<\/a>, or escalate their privileges to the administrator level.<\/p>\n

Splunk rates both vulnerabilities as CVSS 8.0 (High severity), reflecting the significant risk to affected environments.<\/p>\n

The attack vector is network-adjacent, requiring authenticated access and user interaction. But the impact extends across confidentiality, integrity, and availability of affected systems.<\/p>\n

Immediate remediation requires upgrading to the patched versions<\/a>: Splunk Enterprise 10.0.2, 9.4.6, 9.3.8, or 9.2.10, and Universal Forwarder 10.0.2, 9.4.6, 9.3.8, or 9.2.10.<\/p>\n

For organizations unable to upgrade immediately, Splunk provides mitigation steps using icacls commands to reconfigure directory permissions. Removing inappropriate access rights and reapplying proper inheritance controls.<\/p>\n

Organizations should prioritize patching<\/a>, given Splunk Enterprise\u2019s prominence in security operations across Fortune 500 companies and government agencies.<\/p>\n

The vulnerability affects all supported Windows versions and represents a significant supply chain risk if exploited in defended environments.<\/p>\n

Follow us on Google News<\/a>, LinkedIn<\/a>, and X<\/a> for daily cybersecurity updates. Contact us<\/a> to feature your stories.<\/strong><\/p>\n

The post Splunk Enterprise Vulnerabilities Allows Privileges Escalation Via Incorrect File Permissions<\/a> appeared first on Cyber Security News<\/a>.<\/p>\n<\/div>\n

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Splunk Enterprise Vulnerabilities Allows Privileges Escalation Via Incorrect File Permissions A high-severity vulnerability has been disclosed in Splunk affecting its Enterprise and Universal Forwarder products for Windows, stemming from incorrect file permissions during installation and upgrades. The vulnerability, tracked as CVE-2025-20386 for Splunk Enterprise and CVE-2025-20387 for Universal Forwarder. Allows non-administrator users to access sensitive […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2015,129,63,648],"tags":[130],"class_list":["post-8952","post","type-post","status-publish","format-standard","hentry","category-cve-vulnerabilities","category-cyber-security","category-cyber-security-news","category-vulnerability-news","tag-cyber-security-news"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/8952"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=8952"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/8952\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=8952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=8952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=8952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}