{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/tags/utt-hiper/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":["HiPER 1250GW"],"_cs_severities":["critical"],"_cs_tags":["cve-2026-4862","buffer-overflow","utt-hiper","webserver"],"_cs_type":"advisory","_cs_vendors":["UTT"],"content_html":"\u003cp\u003eCVE-2026-4862 describes a critical buffer overflow vulnerability affecting UTT HiPER 1250GW devices up to version 3.2.7-210907-180535. The vulnerability resides in the \u003ccode\u003e/goform/formConfigDnsFilterGlobal\u003c/code\u003e component's Parameter Handler, specifically within the \u003ccode\u003estrcpy\u003c/code\u003e function. A remote attacker can exploit this vulnerability by manipulating the \u003ccode\u003eGroupName\u003c/code\u003e argument, leading to a buffer overflow condition. Successful exploitation could allow an attacker to execute arbitrary code on the affected device. This vulnerability is considered critical due to the ease of remote exploitation and the potential for complete system compromise. The existence of a publicly disclosed exploit increases the likelihood of active exploitation.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eThe attacker identifies a vulnerable UTT HiPER 1250GW device with a version up to 3.2.7-210907-180535 exposed to the internet.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request targeting the \u003ccode\u003e/goform/formConfigDnsFilterGlobal\u003c/code\u003e endpoint.\u003c/li\u003e\n\u003cli\u003eWithin the HTTP request, the attacker includes a \u003ccode\u003eGroupName\u003c/code\u003e argument with a value exceeding the buffer's expected size.\u003c/li\u003e\n\u003cli\u003eThe vulnerable \u003ccode\u003estrcpy\u003c/code\u003e function in the Parameter Handler attempts to copy the oversized \u003ccode\u003eGroupName\u003c/code\u003e value into a fixed-size buffer.\u003c/li\u003e\n\u003cli\u003eThe buffer overflow occurs, overwriting adjacent memory regions on the stack or heap.\u003c/li\u003e\n\u003cli\u003eThe attacker carefully crafts the overflow to overwrite critical data, such as return addresses or function pointers.\u003c/li\u003e\n\u003cli\u003eWhen the vulnerable function returns, control is redirected to the attacker's injected code.\u003c/li\u003e\n\u003cli\u003eThe attacker executes arbitrary code on the UTT HiPER 1250GW device, potentially gaining full 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-2026-4862 can lead to complete compromise of the UTT HiPER 1250GW device. This can result in disruption of network services, data theft, and the potential for the device to be used as a botnet node. Given the widespread use of these devices in various network environments, a large-scale exploitation could have significant consequences. Affected sectors include small to medium sized businesses who may rely on these devices for critical network functionality.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply available patches or firmware updates for UTT HiPER 1250GW devices to address CVE-2026-4862.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for requests targeting the \u003ccode\u003e/goform/formConfigDnsFilterGlobal\u003c/code\u003e endpoint with unusually long \u003ccode\u003eGroupName\u003c/code\u003e parameters to detect potential exploitation attempts (see Sigma rule below).\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the impact of a compromised device on other critical systems.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules to your web server logs and SIEM to detect exploitation attempts.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-02T12:00:00Z","date_published":"2024-01-02T12:00:00Z","id":"https://feed.craftedsignal.io/briefs/2024-01-utt-hiper-strcpy-overflow/","summary":"A buffer overflow vulnerability exists in UTT HiPER 1250GW devices, allowing remote attackers to execute arbitrary code by exploiting the strcpy function in the /goform/formConfigDnsFilterGlobal component through manipulation of the GroupName argument.","title":"UTT HiPER 1250GW strcpy Buffer Overflow Vulnerability (CVE-2026-4862)","url":"https://feed.craftedsignal.io/briefs/2024-01-utt-hiper-strcpy-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed - Utt-Hiper","version":"https://jsonfeed.org/version/1.1"}