{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/web-server/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":8.8,"id":"CVE-2023-7342"}],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["critical"],"_cs_tags":["privilege-escalation","web-server","hisecos"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2023-7342 is a critical privilege escalation vulnerability affecting the HiSecOS web server. This flaw allows authenticated users who possess operator or auditor roles to elevate their privileges to that of an administrator. The vulnerability is triggered when the web server receives specially crafted packets. Successful exploitation of this vulnerability grants the attacker full administrative access to the HiSecOS device. This poses a significant risk to organizations relying on HiSecOS for their operations, as a compromised administrator account can lead to complete system takeover, data breaches, and disruption of services.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker gains initial access to the HiSecOS web server with operator or auditor privileges.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious packet designed to exploit the privilege escalation vulnerability.\u003c/li\u003e\n\u003cli\u003eThe attacker sends the crafted packet to the HiSecOS web server.\u003c/li\u003e\n\u003cli\u003eThe web server processes the malicious packet without proper validation or sanitization.\u003c/li\u003e\n\u003cli\u003eDue to the vulnerability, the attacker\u0026rsquo;s session is granted administrator privileges.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages the newly acquired administrator privileges to perform unauthorized actions.\u003c/li\u003e\n\u003cli\u003eThe attacker gains full control of the HiSecOS device.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2023-7342 can have severe consequences. An attacker with administrator privileges can reconfigure the HiSecOS device, access sensitive data, disrupt operations, and potentially use the compromised device as a pivot point for further attacks within the network. Given the high CVSS score of 8.8, this vulnerability represents a critical threat that requires immediate attention and remediation. The number of potential victims is dependent on the install base of the affected HiSecOS web server.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security patch or upgrade to a version of HiSecOS web server that resolves CVE-2023-7342, as documented in the Belden security bulletin referenced in the advisory.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the potential impact of a successful exploit by restricting access to critical systems from compromised HiSecOS devices.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule provided below to detect potential exploitation attempts against the HiSecOS web server, monitoring for abnormal web requests.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-04-02T19:16:52Z","date_published":"2026-04-02T19:16:52Z","id":"/briefs/2026-04-hisecos-privesc/","summary":"CVE-2023-7342 allows authenticated users with operator or auditor roles in HiSecOS web server to escalate privileges to administrator by sending specially crafted packets, potentially granting full administrative access.","title":"HiSecOS Web Server Privilege Escalation Vulnerability (CVE-2023-7342)","url":"https://feed.craftedsignal.io/briefs/2026-04-hisecos-privesc/"}],"language":"en","title":"CraftedSignal Threat Feed — Web-Server","version":"https://jsonfeed.org/version/1.1"}