{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/smartermail/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":8.1,"id":"CVE-2026-7807"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["SmarterMail"],"_cs_severities":["high"],"_cs_tags":["lfi","file-inclusion","credential-access","smartermail"],"_cs_type":"advisory","_cs_vendors":["SmarterTools"],"content_html":"\u003cp\u003eSmarterTools SmarterMail, a widely used mail server software, is vulnerable to a local file inclusion (LFI) flaw tracked as CVE-2026-7807. This vulnerability affects builds prior to 9560. Authenticated users can exploit the vulnerability by crafting specific requests to the \u003ccode\u003e/api/v1/report/summary/{type}\u003c/code\u003e API endpoint, enabling them to read arbitrary \u003ccode\u003e.json\u003c/code\u003e files from the server\u0026rsquo;s file system. Successful exploitation, combined with weak encryption and hardcoded keys, may allow attackers to decrypt and steal stored passwords and 2FA secrets for all users. This poses a significant risk to the confidentiality and integrity of the SmarterMail server and its user accounts.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker authenticates to the SmarterMail web interface.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP GET request to the \u003ccode\u003e/api/v1/report/summary/{type}\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003e{type}\u003c/code\u003e parameter is manipulated to include a path traversal sequence (e.g., \u003ccode\u003e../../../../\u003c/code\u003e) to target a specific \u003ccode\u003e.json\u003c/code\u003e file outside the intended directory.\u003c/li\u003e\n\u003cli\u003eThe SmarterMail server processes the request without proper input validation, allowing the attacker to read the contents of the specified \u003ccode\u003e.json\u003c/code\u003e file.\u003c/li\u003e\n\u003cli\u003eThe attacker targets \u003ccode\u003e.json\u003c/code\u003e files containing sensitive information, such as configuration files or password stores.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages weak encryption algorithms and hardcoded keys (if present) to decrypt the contents of the stolen \u003ccode\u003e.json\u003c/code\u003e files.\u003c/li\u003e\n\u003cli\u003eThe attacker extracts user credentials, including passwords and 2FA secrets, from the decrypted data.\u003c/li\u003e\n\u003cli\u003eThe attacker uses the stolen credentials to compromise user accounts and gain unauthorized access to sensitive data.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-7807 can lead to the complete compromise of a SmarterMail server. Attackers can steal user credentials, including passwords and 2FA secrets, potentially impacting all users on the system. This access enables attackers to read sensitive emails, send malicious emails, and potentially pivot to other systems on the network. The impact includes data breaches, financial loss, and reputational damage.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade SmarterMail to build 9560 or later to patch CVE-2026-7807 (reference: overview).\u003c/li\u003e\n\u003cli\u003eImplement the Sigma rule \u003ccode\u003eDetect SmarterMail LFI Attempt\u003c/code\u003e to detect exploitation attempts against the \u003ccode\u003e/api/v1/report/summary/{type}\u003c/code\u003e endpoint (reference: rules).\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for suspicious requests containing path traversal sequences in the \u003ccode\u003e/api/v1/report/summary/{type}\u003c/code\u003e endpoint (reference: rules logsource).\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-02T12:00:00Z","date_published":"2024-01-02T12:00:00Z","id":"/briefs/2024-01-smartermail-lfi/","summary":"SmarterTools SmarterMail builds prior to 9560 contain a local file inclusion vulnerability in the /api/v1/report/summary/{type} API endpoint (CVE-2026-7807) that allows authenticated users to read arbitrary .json files, potentially leading to credential compromise.","title":"SmarterTools SmarterMail Local File Inclusion Vulnerability (CVE-2026-7807)","url":"https://feed.craftedsignal.io/briefs/2024-01-smartermail-lfi/"}],"language":"en","title":"CraftedSignal Threat Feed — Smartermail","version":"https://jsonfeed.org/version/1.1"}