CVE-2024-8255
Published: 29 August 2024
Summary
CVE-2024-8255 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Deltaww Dtn Soft. Its CVSS base score is 8.4 (High).
Operationally, ranked in the top 9.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Delta Electronics DTN Soft versions 2.0.1 and earlier contain a deserialization of untrusted data flaw (CWE-502) that permits remote code execution. The affected component is the DTN Soft industrial software package, which carries a CVSS 4.0 score of 8.4 reflecting local attack vector, low complexity, no privileges required, and active user interaction.
An unauthenticated attacker can supply a crafted serialized object that the application deserializes, resulting in arbitrary code execution on the victim system with high impact to confidentiality, integrity, and availability. Successful exploitation therefore requires the victim to process attacker-controlled input locally, after which the attacker gains full control of the process and potentially the host.
CISA has published ICSA-24-242-02 to document the issue and coordinate vendor guidance for affected users. The EPSS score has remained flat at 0.0559 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-49050
Vulnerability details
Delta Electronics DTN Soft version 2.0.1 and prior are vulnerable to an attacker achieving remote code execution through a deserialization of untrusted data vulnerability.
- 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.