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CVE Record

CVE-2024-2199: 389-ds-base: malformed userpassword may cause crash at do_modify in slapd/modify.c

A denial of service vulnerability was found in 389-ds-base ldap server. This issue may allow an authenticated user to cause a server crash while modifying `userPassword` using malformed input.

MediumCVSS 5.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-2199 is a denial-of-service issue in 389 Directory Server. An authenticated user may crash the LDAP server by submitting malformed input while changing userPassword. The main business risk is directory outage, which can disrupt authentication-dependent applications. Provided sources do not indicate active exploitation.

Executive priority

Treat as a scheduled but important infrastructure fix. It can interrupt authentication services if abused by an authenticated user, but sources show no confirmed active exploitation and no confidentiality impact.

Technical view

The flaw is improper input validation (CWE-20) in 389-ds-base during userPassword modification, leading to a crash in slapd/modify.c. CVSS 3.1 is 5.7: adjacent network, low privileges, no user interaction, high availability impact, no confidentiality or integrity impact.

Likely exposure

Exposure is most relevant where 389-ds-base or Red Hat Directory Server is deployed on affected RHEL 7, 8, 9, EUS, or listed Directory Server versions. RHEL 6 status is listed as unknown in the provided data.

Exploitation context

Attack requires an authenticated user with the ability to modify userPassword and adjacent-network reachability per CVSS. The expected impact is service crash, not data theft or privilege escalation. No KEV listing or cited source confirms active exploitation.

Researcher notes

Focus triage on authenticated LDAP password-change paths and crash evidence in affected 389-ds-base builds. Avoid assuming remote unauthenticated exposure. The source bundle names vendor errata but does not provide exploit details or a universal upstream fix statement.

Mitigation direction

  • Apply applicable Red Hat security errata updates for affected platforms.
  • Prioritize directory servers supporting production authentication paths.
  • Restrict LDAP password modification rights to necessary accounts.
  • Monitor vendor guidance for non-Red Hat or uncertain builds.
  • Ensure service supervision restarts failed directory services.

Validation and detection

  • Inventory systems running 389-ds-base or Red Hat Directory Server.
  • Map installed versions to affected products in Red Hat advisories.
  • Confirm relevant errata packages are installed after remediation.
  • Review directory server logs for crashes around password modification events.
  • Track RHEL 6 separately because status is unknown in sources.
Prepared
Confidence
high
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-20: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2024-2199 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
2ADP providers
14Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.7CVSS 3.1MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H2.13.6redhat

Vulnerability scoring details

Base CVSS 3.1 score

5.7Medium
CVSS 3.1 vector shape for CVE-2024-2199Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineredhat

    Reported to Red Hat.

  2. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  3. Source timelineredhat

    Made public.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendor389-ds-base389-ds-base, 0unaffected
Red HatRed Hat Directory Server 11.5 E4S for RHEL 8redhat-ds:11, 8060020250210084424.0ca98e7eaffected
Red HatRed Hat Directory Server 11.8 for RHEL 8redhat-ds:11, 8090020240606122459.91529cd0affected
Red HatRed Hat Directory Server 11.9 for RHEL 8redhat-ds:11, 8100020240604161237.37ed7c03affected
Red HatRed Hat Directory Server 12.4 for RHEL 9redhat-ds:12, 9040020240604143706.1674d574affected
Red HatRed Hat Enterprise Linux 7389-ds-base, 0:1.3.11.1-5.el7_9affected
Red HatRed Hat Enterprise Linux 8389-ds:1.4, 8100020240613122040.25e700aaaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support389-ds:1.4, 8080020240807050952.6dbb3803affected
Red HatRed Hat Enterprise Linux 9389-ds-base, 0:2.4.5-8.el9_4affected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support389-ds-base, 0:2.2.4-9.el9_2affected
Red HatRed Hat Enterprise Linux 6389-ds-baseunknown
Weakness

CWE details

CWE-20

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-20 · source CWE mapping

Improper Input Validation

Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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