Security readout for executives and security teams
Plain-English summary
This flaw lets a logged-in low-privilege user become an administrator on affected Belden Hirschmann HiSecOS EAGLE devices. For industrial or network security appliances, that can mean full device control, configuration changes, and loss of confidentiality, integrity, and availability.
Executive priority
Treat this as high priority for any affected device protecting operational, industrial, or security-sensitive networks. The issue gives low-privilege authenticated users administrator control, but public evidence supplied here does not confirm active exploitation.
Technical view
CVE-2023-7342 is a CWE-269 privilege escalation in the HiSecOS web server. A network-reachable attacker with operator or auditor credentials can send specially crafted packets to elevate to administrator. The listed affected software is HiSecOS EAGLE 03.4.00 prior to 04.1.00, with CVSS 8.8.
Likely exposure
Exposure is most likely where HiSecOS web administration is reachable and operator or auditor accounts exist. Internet exposure would increase urgency, but the provided sources do not state whether devices are commonly internet-facing.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Exploitation requires authentication with a lower-privileged role, so stolen, shared, or weak operator and auditor accounts materially raise risk.
Researcher notes
Focus validation on version, management-plane reachability, and low-privilege account exposure. The affected scope in the bundle names Hirschmann HiSecOS EAGLE and HiSecOS 03.4.00 prior to 04.1.00; do not generalize to other Belden products without vendor evidence.
Mitigation direction
- Review Belden guidance for the affected HiSecOS EAGLE release.
- Upgrade affected HiSecOS installations to 04.1.00 or later where supported.
- Restrict web management access to trusted administration networks.
- Audit and disable unnecessary operator or auditor accounts.
- Rotate credentials for low-privilege accounts on affected devices.
Validation and detection
- Inventory Hirschmann HiSecOS EAGLE devices and record HiSecOS versions.
- Confirm whether version 03.4.00 or any pre-04.1.00 release is deployed.
- Identify who holds operator or auditor credentials.
- Check management interface exposure from untrusted networks.
- Review logs for unexpected privilege changes or administrator actions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-7342 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- Belden Security BulletinsCVE reference, VulnCheck · vendor-advisory
- https://www.vulncheck.com/advisories/belden-hisecos-web-server-privilege-escalationCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.