Cyber Resilience

CVE-2023-38357

MediumPublic PoC

Published: 01 August 2023

Published
01 August 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.0416 88.9th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-38357 is a medium-severity Insufficient Entropy (CWE-331) vulnerability in Rws Worldserver. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 11.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Session tokens in RWS WorldServer 11.7.3 and earlier have a low entropy and can be enumerated, leading to unauthorized access to user sessions.

CWE(s)
CWE-331

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

rws
worldserver
≤ 11.8.0

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.

SC-12 Cryptographic Key Establishment and Management
addresses: CWE-331

Approved key-establishment methods mandate sufficient entropy during key generation, eliminating entropy-starved keys.

References