Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAttain MITM position on shared network
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DeliveryIntercept victim's initial HTTP request to IEM
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ExploitStrip TLS upgrade before HTTPS negotiation
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ExecutionRelay plaintext HTTP session to IEM server
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ImpactCapture sensitive data (tokens, credentials, event data) in transit
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A04:2025 - Cryptographic Failures
ASVS 5.0
V12 - Secure Communication Credential transport protection
|
| Exploitation Conditions | Exploitation requires the attacker to occupy a man-in-the-middle network position between the IEM client (browser or API consumer) and the IEM server - this is the AC:H condition from the CVSS vector. The victim's HTTP client must initiate or follow an unprotected HTTP connection rather than a directly pinned HTTPS session; clients that have previously cached an HSTS policy via a prior secure connection would not be vulnerable. No authentication is required of the attacker (PR:N), and no user interaction beyond normal application use is needed (UI:N). Exploitation is limited to confidentiality only (C:L); no writes or service disruption are achievable through this vector alone. Environments where all IEM traffic is confined to encrypted tunnels (IPSec, WireGuard, VPN) or where network-layer HSTS injection is performed by a perimeter proxy are partially protected independent of the application fix. |
| Impact | The CVSS base score of 3.7 (Low) is consistent with the underlying mechanics: AC:H reflects the prerequisite of a privileged network position (man-in-the-middle), and the impact is limited to C:L (partial confidentiality loss) with no integrity or availability consequences. No EPSS score was provided in the input data, so probabilistic exploitation likelihood cannot be quantified. The vulnerability is not listed in CISA KEV, and no POC or exploit code is referenced. The practical threat is narrow: exploitation requires the attacker to already control or observe network traffic between the IEM client and server, such as via a rogue access point, compromised network appliance, or ARP poisoning on a shared segment. In zero-trust or TLS-inspection environments this risk may be partially mitigated by infrastructure controls, but the absence of HSTS still represents a defense-in-depth gap. Overall, this is a low-priority finding for most enterprise environments but material for deployments on untrusted network segments. |
| Exploit ScenarioDerived | An attacker who has achieved a man-in-the-middle position on the network path - for example via ARP poisoning on a shared LAN segment or a rogue Wi-Fi access point - intercepts a user's initial HTTP request to the IEM interface before TLS is negotiated. Without HSTS instructing the client to enforce HTTPS, the attacker relays a plaintext HTTP session and passively reads session tokens, credentials, or event management data in transit. No exploit code is publicly referenced, and the high attack complexity makes opportunistic exploitation unlikely. |
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Alert meAnalysisAIv1 – Jul 21, 2026
HCL IntelliOps Event Management (IEM) fails to enforce HTTP Strict Transport Security (HSTS), enabling network-positioned attackers to perform SSL stripping and intercept communications that should be protected by TLS. The CVSS vector (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N) indicates unauthenticated network exploitation but at high attack complexity, meaning the attacker must occupy a man-in-the-middle position on the network path. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog, placing realistic risk in the low-to-moderate range confined to adversarial network environments.
RemediationAI
Consult the HCL Software vendor advisory at https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132378 for the primary fix, which is expected to involve enabling the Strict-Transport-Security HTTP response header on IEM web interfaces. No specific patched version number is confirmed in the available input data - the patch version should be verified directly against the KB article. As a compensating control pending patch application, administrators can enforce HSTS at the perimeter layer (load balancer, reverse proxy, or WAF) by injecting the Strict-Transport-Security header with a suitable max-age value (e.g., 31536000 seconds); note this approach requires that all traffic passes through the enforcing proxy and will not protect direct API or client connections that bypass it. Additionally, restricting IEM to network segments where MITM is not feasible (isolated management VLANs, VPN-only access) reduces exposure independent of the HSTS gap.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
CWE-523 (Missing Encryption of Sensitive Data, specifically absent HSTS enforcement) is the root cause class. HTTP Strict Transport Security (RFC 6797) is a web security mechanism that instructs HTTP clients to communicate exclusively over HTTPS for a specified duration. Without the Strict-Transport-Security response header, browsers and API clients may initiate plain HTTP connections or follow insecure redirects, creating a window for SSL stripping attacks - a technique that downgrades HTTPS to HTTP by intercepting the initial plaintext request before a secure channel is established. The affected product per CPE (cpe:2.3:a:hclsoftware:intelliops_event_management:*:*:*:*:*:*:*:*) is HCL Software's IntelliOps Event Management across all tracked versions, indicating no version range has been excluded from the advisory.
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
MITM network position required (AC:H); no auth needed; only limited confidentiality loss from traffic interception; no integrity or availability impact.
Primary rating from Vendor (HCL).
CVSS VectorVendor: HCL
DescriptionCVE.org
HCL IEM was affected with Strict transport security not enforced. It may enable attackers to perform SSL stripping or man-in-the-middle attacks and compromise secure communications.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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EUVD-2026-46274
GHSA-9q58-6g9f-9x3r
NVD
CVE.org
EPSS
Exploit-DB