CVE-2022-36119
Published: 25 August 2022
Summary
CVE-2022-36119 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Ssctech Blue Prism. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-36119 is an insecure deserialization vulnerability (CWE-502) affecting Blue Prism Enterprise versions 6.0 through 7.01. In environments where the Blue Prism Application server is exposed, the flaw resides in message handling on the server component and permits remote code execution when an attacker supplies a crafted serialized payload.
A domain-authenticated user with network access can send the malicious message directly to the Blue Prism Server, resulting in arbitrary code execution under the privileges of the Blue Prism Server service. The CVSS 3.1 score of 8.8 reflects network attack vector, low complexity, low privileges required, and high impact on confidentiality, integrity, and availability.
Official Blue Prism security notifications and portal entries at the referenced community and portal URLs describe the issue and direct customers to available patches or configuration guidance for affected releases. The associated EPSS score has remained flat at 0.0691 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-38843
Vulnerability details
An issue was discovered in Blue Prism Enterprise 6.0 through 7.01. In a misconfigured environment that exposes the Blue Prism Application server, it is possible for a domain authenticated user to send a crafted message to the Blue Prism Server…
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and accomplish a remote code execution attack that is possible because of insecure deserialization. Exploitation of this vulnerability allows for code to be executed in the context of the Blue Prism Server service.
- 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.