CVE-2021-29671

Local audit logging bypass

Published Apr 9, 2021 · Updated Sep 16, 2024

Audit logging bypass in IBM Spectrum Scale 5.1.0.1 allows local users to prevent file activity from being recorded when FAL is enabled. IBM identifies the locus only as the file audit logging mechanism and has not published the faulty operation or triggering file action. Local access and enabled file audit logging are required; exploitation removes expected audit evidence without affecting confidentiality or availability.

CVSS severity4.0
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Audit logging bypass in IBM Spectrum Scale 5.1.0.1 allows local users to prevent file activity from being recorded when FAL is enabled. IBM identifies the locus only as the file audit logging mechanism and has not published the faulty operation or triggering file action. Local access and enabled file audit logging are required; exploitation removes expected audit evidence without affecting confidentiality or availability.

The record

CVE
CVE-2021-29671
Published
Apr 9, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Spectrum Scale
Classifications
T1562
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.1.0.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Spectrum Scaleversion=5.1.0.1

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.5IBMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
4.0IBMCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
1.9NIST NVDAV:L/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1562Impair Defenses

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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