Cyber Resilience

CVE-2021-38997

Medium

Published: 12 December 2022

Published
12 December 2022
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0029 52.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-38997 is a medium-severity Improper Neutralization of HTTP Headers for Scripting Syntax (CWE-644) vulnerability in Ibm Api Connect. Its CVSS base score is 5.4 (Medium).

Operationally, ranked in the top 47.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

IBM API Connect V10.0.0.0 through V10.0.5.0, V10.0.1.0 through V10.0.1.7, and V2018.4.1.0 through 2018.4.1.19 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the…

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vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 213212.

CWE(s)

Related Threats

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

Affected Assets

ibm
api connect
10.0.0.0 — 10.0.5.0 · 10.0.1.0 — 10.0.1.7 · 2018.4.1.0 — 2018.4.1.19

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.

addresses: CWE-116

Validating that output matches expected content directly mitigates failures to properly encode or escape data for its destination context.

References