CVE-2023-1133
Published: 27 March 2023
Summary
CVE-2023-1133 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Deltaww Infrasuite Device Master. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Delta Electronics InfraSuite Device Master versions prior to 1.0.5 contain a deserialization vulnerability (CWE-502) in the Device-status service. This service listens on UDP port 10100 by default, accepts unverified packets, and deserializes their content without authentication or validation, enabling remote arbitrary code execution. The issue carries a CVSS 3.1 score of 9.8 reflecting network attack vector, low complexity, and full impact on confidentiality, integrity, and availability.
An unauthenticated attacker with network access to the affected UDP service can send crafted packets that trigger deserialization and achieve remote code execution on the target system. No user interaction or credentials are required for successful exploitation.
CISA advisory ICSA-23-080-02 and associated Packet Storm disclosures address the flaw and point to vendor remediation in version 1.0.5 and later. The EPSS score has reached a peak of 0.8699 with a current value of 0.8322.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-23416
Vulnerability details
Delta Electronics InfraSuite Device Master versions prior to 1.0.5 contain a vulnerability in which the Device-status service listens on port 10100/ UDP by default. The service accepts the unverified UDP packets and deserializes the content, which could allow an unauthenticated…
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attacker to remotely execute arbitrary code.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.