{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/elixir-nodejs/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Ielixir-nodejs"],"_cs_severities":["high"],"_cs_tags":["cross-user data leakage","information disclosure","race condition","elixir-nodejs"],"_cs_type":"advisory","_cs_vendors":["Revelry Labs"],"content_html":"\u003cp\u003eThe Ielixir-nodejs library, versions prior to 3.1.4, contains a vulnerability that can lead to cross-user data leakage or information disclosure. This issue arises from a race condition in the worker protocol, where the lack of request-response correlation creates a \u0026quot;stale response\u0026quot; scenario. This means that in high-throughput environments, a worker may inadvertently return data intended for one user (User A) to another (User B). This is particularly concerning when the library handles sensitive user data, such as Personally Identifiable Information (PII), authentication tokens, or private records. The vulnerability was reported on March 26, 2026, and has been addressed in version 3.1.4 of the library. Exploitation of this vulnerability could lead to unauthorized access to sensitive information without triggering typical security alerts, making it difficult to detect.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies an application using a vulnerable version of Ielixir-nodejs (prior to v3.1.4).\u003c/li\u003e\n\u003cli\u003eThe attacker initiates multiple requests to the application, specifically targeting endpoints that utilize the vulnerable library.\u003c/li\u003e\n\u003cli\u003eUnder high load or timeout conditions, the worker process experiences a race condition due to the lack of proper request-response correlation.\u003c/li\u003e\n\u003cli\u003eThe worker process retrieves data from a previous request (Data A, intended for User A) that is still present in the buffer.\u003c/li\u003e\n\u003cli\u003eThe worker process incorrectly associates Data A with the attacker's current request (belonging to User B).\u003c/li\u003e\n\u003cli\u003eThe application, unaware of the data mix-up, returns Data A to the attacker (User B).\u003c/li\u003e\n\u003cli\u003eThe attacker gains unauthorized access to sensitive information intended for another user.\u003c/li\u003e\n\u003cli\u003eThe attacker may use the leaked information for further malicious activities, such as account takeover or data exfiltration.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability can lead to the disclosure of sensitive user data, including PII, authentication tokens, and private records. The number of potential victims depends on the scope of applications utilizing the vulnerable Ielixir-nodejs library. This vulnerability poses a significant risk to organizations that handle sensitive user data, potentially leading to data breaches, compliance violations, and reputational damage. The vulnerability is difficult to trace because the application may not throw an error but instead provide \u0026quot;valid-looking\u0026quot; yet entirely incorrect and private data to the wrong session.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade the Ielixir-nodejs library to version 3.1.4 or later to address the vulnerability as described in the advisory (\u003ca href=\"https://github.com/advisories/GHSA-rwcr-rpcc-3g9m\"\u003ehttps://github.com/advisories/GHSA-rwcr-rpcc-3g9m\u003c/a\u003e).\u003c/li\u003e\n\u003cli\u003eImplement robust input validation and output sanitization mechanisms in applications using Ielixir-nodejs to mitigate the impact of potential data leakage.\u003c/li\u003e\n\u003cli\u003eMonitor application logs for unusual data access patterns or unexpected data being returned to users; tune the provided Sigma rule to detect potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eConsider implementing request tracing and correlation mechanisms within the application to ensure proper request-response mapping and prevent stale responses.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-09T14:30:00Z","date_published":"2024-01-09T14:30:00Z","id":"https://feed.craftedsignal.io/briefs/2024-01-ielixir-nodejs-leakage/","summary":"The Ielixir-nodejs library before v3.1.4 is vulnerable to cross-user data leakage or information disclosure due to a race condition in the worker protocol, potentially exposing sensitive user data.","title":"Ielixir-nodejs Cross-User Data Leakage Vulnerability","url":"https://feed.craftedsignal.io/briefs/2024-01-ielixir-nodejs-leakage/"}],"language":"en","title":"CraftedSignal Threat Feed - Elixir-Nodejs","version":"https://jsonfeed.org/version/1.1"}