{"id":24222,"date":"2025-10-31T04:24:16","date_gmt":"2025-10-31T04:24:16","guid":{"rendered":"http:\/\/localhost\/?p=24222"},"modified":"2025-10-31T04:24:16","modified_gmt":"2025-10-31T04:24:16","slug":"nagios-xi-2024r2-privilege-escalation-via-processperfdatapl","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=24222","title":{"rendered":"Nagios XI < 2024R2 Privilege Escalation via process_perfdata.pl_CVE-2025-34287"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Nagios XI versions prior to 2024R2 contain an improperly owned script, process_perfdata.pl, which is executed periodically as the nagios user but owned by www-data. Because the file was writable by www-data, an attacker with web server privileges could modify its contents, leading to arbitrary code execution as the nagios user when the script is next run. 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Because&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,74,12,15,13,7,11,5],"class_list":["post-24222","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-84","tag-exploit","tag-high","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nagios XI &lt; 2024R2 Privilege Escalation via process_perfdata.pl_CVE-2025-34287 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=24222\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nagios XI &lt; 2024R2 Privilege Escalation via process_perfdata.pl_CVE-2025-34287 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;Nagios XI versions prior to 2024R2 contain an improperly owned script, process_perfdata.pl, which is executed periodically as the nagios user but owned by www-data. 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