{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/vendors/hcl/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":["BigFix WebUI"],"_cs_severities":["medium"],"_cs_tags":["information-disclosure","webui","hcl"],"_cs_type":"advisory","_cs_vendors":["HCL"],"content_html":"\u003cp\u003eMultiple information disclosure vulnerabilities exist within the HCL BigFix WebUI applications. An authenticated, remote attacker can exploit these vulnerabilities to gain unauthorized access to sensitive information. The vulnerabilities stem from inadequate access controls and insufficient sanitization of user-supplied inputs. Successful exploitation could lead to exposure of confidential data, potentially impacting the integrity and confidentiality of the affected system. The scope of impact is limited to organizations utilizing vulnerable versions of HCL BigFix WebUI.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker gains valid credentials to the HCL BigFix WebUI through compromised accounts or credential harvesting.\u003c/li\u003e\n\u003cli\u003eThe attacker authenticates to the HCL BigFix WebUI with the acquired credentials.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request targeting a vulnerable endpoint within the WebUI.\u003c/li\u003e\n\u003cli\u003eThe malicious request exploits insufficient access controls to access unauthorized data.\u003c/li\u003e\n\u003cli\u003eThe attacker may also exploit insufficient sanitization of user-supplied inputs, leading to information disclosure.\u003c/li\u003e\n\u003cli\u003eThe WebUI processes the request and inadvertently exposes sensitive information in the response.\u003c/li\u003e\n\u003cli\u003eThe attacker parses the response and extracts the disclosed information.\u003c/li\u003e\n\u003cli\u003eThe attacker uses the disclosed information for further malicious activities, such as lateral movement or privilege escalation.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these vulnerabilities could lead to the disclosure of sensitive information, such as user credentials, configuration details, or internal network information. This information could be leveraged by an attacker to further compromise the affected system or network. The number of affected organizations is currently unknown, but the impact on each organization could be significant, depending on the sensitivity of the disclosed information.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDeploy the Sigma rules provided in this brief to detect potential exploitation attempts within your environment.\u003c/li\u003e\n\u003cli\u003eReview and enforce strong authentication and authorization mechanisms for the HCL BigFix WebUI.\u003c/li\u003e\n\u003cli\u003eConduct regular security assessments and penetration testing of the HCL BigFix WebUI to identify and remediate potential vulnerabilities.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-11T10:42:58Z","date_published":"2026-05-11T10:42:58Z","id":"https://feed.craftedsignal.io/briefs/2026-05-hcl-bigfix-webui-info-disclosure/","summary":"A remote, authenticated attacker can exploit multiple vulnerabilities in HCL BigFix WebUI applications to disclose sensitive information.","title":"HCL BigFix WebUI Information Disclosure Vulnerabilities","url":"https://feed.craftedsignal.io/briefs/2026-05-hcl-bigfix-webui-info-disclosure/"},{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["BigFix"],"_cs_severities":["high"],"_cs_tags":["vulnerability","code-execution","dos","information-disclosure"],"_cs_type":"advisory","_cs_vendors":["HCL"],"content_html":"\u003cp\u003eHCL BigFix is susceptible to multiple vulnerabilities that, if exploited, could lead to significant security compromises. An attacker could leverage these vulnerabilities to achieve a range of malicious activities, including unauthorized information disclosure, arbitrary code execution, denial-of-service (DoS) attacks, and the manipulation of critical system files. Defenders should prioritize detection and mitigation measures to prevent potential exploitation.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker identifies a vulnerable endpoint running HCL BigFix.\u003c/li\u003e\n\u003cli\u003eThe attacker exploits a vulnerability to gain initial access. This may involve sending a specially crafted request to the BigFix server.\u003c/li\u003e\n\u003cli\u003eUsing the initial foothold, the attacker attempts to escalate privileges on the system.\u003c/li\u003e\n\u003cli\u003eThe attacker leverages code execution vulnerability to deploy a malicious payload on the targeted system.\u003c/li\u003e\n\u003cli\u003eThe deployed payload establishes a command and control (C2) channel with the attacker\u0026rsquo;s infrastructure.\u003c/li\u003e\n\u003cli\u003eThe attacker uses the C2 channel to exfiltrate sensitive information from the compromised system.\u003c/li\u003e\n\u003cli\u003eThe attacker exploits another vulnerability to manipulate files, potentially altering configurations or injecting malicious code into legitimate applications.\u003c/li\u003e\n\u003cli\u003eThe attacker initiates a denial-of-service attack, disrupting the availability of the BigFix service and impacting managed endpoints.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of these vulnerabilities could result in significant data breaches, system compromise, and operational disruption. The ability to execute arbitrary code allows attackers to install malware, steal sensitive data, or pivot to other systems on the network. Manipulation of files could lead to data corruption or system instability. A denial-of-service attack could disrupt critical IT operations managed by BigFix.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInvestigate and patch HCL BigFix deployments with the latest security updates from the vendor to remediate the vulnerabilities.\u003c/li\u003e\n\u003cli\u003eImplement network segmentation to limit the blast radius of potential compromises.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules in this brief to your SIEM to detect potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eEnable process monitoring to detect suspicious process execution originating from BigFix processes (see process_creation log source).\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-11T09:04:04Z","date_published":"2026-05-11T09:04:04Z","id":"https://feed.craftedsignal.io/briefs/2026-05-hcl-bigfix-multiple-vulnerabilities/","summary":"Multiple vulnerabilities in HCL BigFix could allow an attacker to disclose information, execute arbitrary code, perform a denial of service attack, and manipulate files.","title":"Multiple Vulnerabilities in HCL BigFix","url":"https://feed.craftedsignal.io/briefs/2026-05-hcl-bigfix-multiple-vulnerabilities/"}],"language":"en","title":"CraftedSignal Threat Feed — HCL","version":"https://jsonfeed.org/version/1.1"}