{"id":34356,"date":"2025-11-07T04:02:25","date_gmt":"2025-11-07T04:02:25","guid":{"rendered":"https:\/\/nsfocusglobal.com\/?p=32745"},"modified":"2026-04-17T18:07:35","modified_gmt":"2026-04-17T18:07:35","slug":"jumpserver-connection-token-improper-authentication-vulnerability-cve-2025-62712-notice","status":"publish","type":"post","link":"https:\/\/nsfocusglobal.com\/pt-br\/jumpserver-connection-token-improper-authentication-vulnerability-cve-2025-62712-notice\/","title":{"rendered":"JumpServer Connection Token Improper Authentication Vulnerability (CVE-2025-62712) Notice"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><h2 class=\"wp-block-heading\">Overview<\/h2>\n\n\n\n<p>Recently, NSFOCUS CERT detected that JumpServer issued a security bulletin to fix the JumpServer connection token improper authentication vulnerability (CVE-2025-62712); Due to improper authentication of JumpServer&#8217;s \/api\/v1\/authentication\/super-connection-token\/hyper-connected endpoint, attackers with low-privilege accounts can obtain the connection tokens of all system users and connect to managed assets as them, thereby achieving unauthorized access and privilege escalation operations. The CVSS score 9.6, and PoC has been made public. Relevant users are requested to take measures for protection as soon as possible.<\/p>\n\n\n\n<p>Reference link: <a href=\"https:\/\/github.com\/\/jumpserver\/jumpserver\/security\/advisories\/GHSA-6ghx-6vpv-3wg7\">https:\/\/github.com\/\/jumpserver\/jumpserver\/security\/advisories\/GHSA-6ghx-6vpv-3wg7<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Scope of Impact<\/h2>\n\n\n\n<p><strong>Affected versions<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JumpServer &lt; 3.10.19-lts<\/li>\n\n\n\n<li>JumpServer&nbsp;&lt;&nbsp;4.10.10-lt<\/li>\n<\/ul>\n\n\n\n<p><strong>Unaffected version<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JumpServer&nbsp;&gt;=&nbsp;3.10.20-lts<\/li>\n\n\n\n<li>JumpServer&nbsp;&gt;=&nbsp;4.10.11-lts<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Risk Investigation of Exposure Surface<\/h2>\n\n\n\n<p><strong>Cloud detection<\/strong><\/p>\n\n\n\n<p>NSFOCUS External Attack Surface Management Service (EASM) supports the Internet asset investigation of CVE-2025-62712 vulnerability risks. It has helped service customer groups complete exposure surface investigations and conduct vulnerability warnings and closed-loop disposal timely before threats occur. Interested customers can arrange detailed consultation and communication by contacting their local regional colleagues at NSFOCUS or sending an email to <a href=\"mailto:rs@nsfocus.com\">rs@nsfocus.com<\/a>.<\/p>\n\n\n\n<p><strong>Tool troubleshooting<\/strong><\/p>\n\n\n\n<p>NSFOCUS Automated Penetration Testing Tool (EZ) supports fingerprint recognition and troubleshooting of JumpServer. Users can directly use the web module for scanning and detection:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2025\/11\/1107a.png\"><img decoding=\"async\" src=\"https:\/\/nsfocusglobal.com\/wp-content\/uploads\/2025\/11\/1107a.png\" alt=\"Red circular no entry sign with a white horizontal bar.\" class=\"wp-image-32746\"><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Mitigation<\/h2>\n\n\n\n<p><strong>Official upgrade<\/strong><strong><\/strong><\/p>\n\n\n\n<p>At present, the official has released a new version to fix this vulnerability. Affected users are requested to upgrade the version as soon as possible for protection.<\/p>\n\n\n\n<p>Download link: <a href=\"https:\/\/github.com\/jumpserver\/jumpserver\/tags\">https:\/\/github.com\/jumpserver\/jumpserver\/tags<\/a><\/p>\n\n\n\n<p><strong>Other protective measures<\/strong><\/p>\n\n\n\n<p>If the relevant users are temporarily unable to perform upgrade operations, they can also modify the Nginx configuration to block the GET request of the super-connection-token API for temporary relief:<\/p>\n\n\n\n<div class=\"wp-block-group has-cyan-bluish-gray-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>location = \/api\/v1\/authentication\/super-connection-token\/ {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; if ($request_method = GET) { return 405; }&nbsp; # Block GET explicitly<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; proxy_pass http:\/\/jumpserver_backend;<\/p>\n\n\n\n<p>}<\/p>\n\n\n\n<p>location = \/api\/v1\/resources\/super-connection-tokens\/ {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; if ($request_method = GET) { return 405; }&nbsp; # Block GET explicitly<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; proxy_pass http:\/\/jumpserver_backend;<\/p>\n\n\n\n<p>}<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Statement<\/h2>\n\n\n\n<p>This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and\/or indirect consequences and losses caused by transmitting and\/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add\/delete any information to\/from it, or use this advisory for commercial purposes without permission from NSFOCUS.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">About NSFOCUS<\/h2>\n\n\n\n<p>NSFOCUS, a pioneering leader in cybersecurity, is dedicated to safeguarding telecommunications, Internet service providers, hosting providers, and enterprises from sophisticated cyberattacks.<\/p>\n\n\n\n<p>Founded in 2000, NSFOCUS operates globally with over 4000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. It has a proven track record of protecting over 25% of the Fortune Global 500 companies, including four of the five largest banks and six of the world&acirc;&euro;&trade;s top ten telecommunications companies.<\/p>\n\n\n\n<p>Leveraging technical prowess and innovation, NSFOCUS delivers a comprehensive suite of security solutions, including the Intelligent Security Operations Platform (ISOP) for modern SOC, DDoS Protection, Continuous Threat Exposure Management (CTEM) Service and Web Application and API Protection (WAAP). All the solutions and services are augmented by the Security Large Language Model (SecLLM), ML, patented algorithms and other cutting-edge research achievements developed by NSFOCUS.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p>Overview Recently, NSFOCUS CERT detected that JumpServer issued a security bulletin to fix the JumpServer connection token improper authentication vulnerability (CVE-2025-62712); Due to improper authentication of JumpServer&#8217;s \/api\/v1\/authentication\/super-connection-token\/hyper-connected endpoint, attackers with low-privilege accounts can obtain the connection tokens of all system users and connect to managed assets as them, thereby achieving unauthorized access and privilege [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":28664,"comment_status":"open","ping_status":"open","sticky":false,"template":"post-templates\/single-layout-8.php","format":"standard","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[3,6],"tags":[1049,482],"class_list":["post-34356","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-emergency-response","tag-cve-2025-62712","tag-jumpserver"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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