{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2025-49010/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":3.8,"id":"CVE-2025-49010"}],"_cs_exploited":false,"_cs_products":["OpenSC"],"_cs_severities":["critical"],"_cs_tags":["buffer-overflow","opensc","cve-2025-49010"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eA stack buffer overflow vulnerability, identified as CVE-2025-49010, exists in the GET RESPONSE function of OpenSC. The vulnerability allows an attacker to overwrite data on the stack, potentially leading to arbitrary code execution. While the specific exploitation details are not provided in the initial advisory, the nature of a stack buffer overflow indicates a high risk, especially if OpenSC is used in security-sensitive applications or environments. Successful exploitation could allow an attacker to gain control of the affected system or application, potentially leading to data theft, system compromise, or denial of service. Given the lack of specifics, defenders should prioritize patching and monitoring for exploitation attempts.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker crafts a malicious smart card or manipulates input data to be processed by OpenSC.\u003c/li\u003e\n\u003cli\u003eThe malicious data is passed to the GET RESPONSE function within OpenSC.\u003c/li\u003e\n\u003cli\u003eThe GET RESPONSE function attempts to process the data without proper bounds checking.\u003c/li\u003e\n\u003cli\u003eDue to the lack of bounds checking, a stack buffer overflow occurs when writing data.\u003c/li\u003e\n\u003cli\u003eThe overflow overwrites adjacent memory locations on the stack.\u003c/li\u003e\n\u003cli\u003eThe overwritten memory includes return addresses or other critical data.\u003c/li\u003e\n\u003cli\u003eWhen the GET RESPONSE function returns, execution is redirected to an address controlled by the attacker.\u003c/li\u003e\n\u003cli\u003eThe attacker executes arbitrary code, potentially gaining control of the system.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2025-49010 allows an attacker to execute arbitrary code on the affected system. The number of victims and sectors targeted are currently unknown. If exploited, this vulnerability could lead to complete system compromise, data theft, or denial of service. Given the nature of OpenSC, which is used for smart card access, successful exploitation may allow an attacker to compromise cryptographic keys and other sensitive information.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security patch for CVE-2025-49010 as soon as it becomes available from the vendor.\u003c/li\u003e\n\u003cli\u003eImplement runtime stack protection mechanisms to detect and prevent stack buffer overflows.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule to monitor for suspicious process execution after OpenSC function calls.\u003c/li\u003e\n\u003cli\u003eEnable verbose logging for OpenSC to capture details about function calls and data processing to facilitate investigation.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-07-03T12:00:00Z","date_published":"2024-07-03T12:00:00Z","id":"/briefs/2024-07-opensc-buffer-overflow/","summary":"CVE-2025-49010 is a critical stack buffer overflow vulnerability within the GET RESPONSE function of OpenSC, potentially leading to arbitrary code execution.","title":"OpenSC Stack Buffer Overflow Vulnerability (CVE-2025-49010)","url":"https://feed.craftedsignal.io/briefs/2024-07-opensc-buffer-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2025-49010","version":"https://jsonfeed.org/version/1.1"}