Vulnerability-Lookup

WID-SEC-W-2023-2323

Vulnerability from csaf_certbund - Published: 2023-09-12 22:00 - Updated: 2023-11-02 23:00

Summary

Red Hat Enterprise Linux (Keylime): Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Severity

Mittel

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.

Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme: - Linux

CVE-2023-38201

Es existiert eine Schwachstelle in Red Hat Enterprise Linux. Diese besteht in der Komponente "Keylime" und ist auf die Umgehung eines Challenge-Response-Protokolls zurückzuführen. Ein anonymer Angreifer im angrenzenden Netzbereich kann diese Schwachstellen ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Affected products

Known affected 3 products

Product	Identifier	Version
Red Hat Enterprise Linux 9 Red Hat	`cpe:/o:redhat:enterprise_linux:9`	—
Oracle Linux Oracle	`cpe:/o:oracle:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

References

5 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://linux.oracle.com/errata/ELSA-2023-5080.html	external
https://access.redhat.com/errata/RHSA-2023:5080	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-2323 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2323.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2323 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2323"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-ED9922536E vom 2023-11-03",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-ed9922536e"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2023-5080 vom 2023-09-13",
        "url": "https://linux.oracle.com/errata/ELSA-2023-5080.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2023:5080 vom 2023-09-12",
        "url": "https://access.redhat.com/errata/RHSA-2023:5080"
      }
    ],
    "source_lang": "en-US",
    "title": "Red Hat Enterprise Linux (Keylime): Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2023-11-02T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:58:19.124+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
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      "id": "WID-SEC-W-2023-2323",
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          "date": "2023-09-12T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-11-02T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        }
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      "status": "final",
      "version": "2"
    }
  },
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    "branches": [
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        "branches": [
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            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
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        "category": "vendor",
        "name": "Fedora"
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        "branches": [
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            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
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              "product_id": "T004914",
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        "category": "vendor",
        "name": "Oracle"
      },
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        "branches": [
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            "category": "product_name",
            "name": "Red Hat Enterprise Linux 9",
            "product": {
              "name": "Red Hat Enterprise Linux 9",
              "product_id": "T023632",
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                "cpe": "cpe:/o:redhat:enterprise_linux:9"
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          "category": "description",
          "text": "Es existiert eine Schwachstelle in Red Hat Enterprise Linux. Diese besteht in der Komponente \"Keylime\" und ist auf die Umgehung eines Challenge-Response-Protokolls zur\u00fcckzuf\u00fchren. Ein anonymer Angreifer im angrenzenden Netzbereich kann diese Schwachstellen ausnutzen, um Sicherheitsvorkehrungen zu umgehen."
        }
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      },
      "release_date": "2023-09-12T22:00:00.000+00:00",
      "title": "CVE-2023-38201"
    }
  ]
}

CVE-2023-38201 (GCVE-0-2023-38201)

Vulnerability from cvelistv5 – Published: 2023-08-25 16:15 – Updated: 2025-11-20 17:41

Title

Keylime: challenge-response protocol bypass during agent registration

Summary

A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent registration. This issue may allow an attacker to impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.

Severity

6.5 (Medium)


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

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1131 records in the last 180 days details

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2023:5080	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-38201	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2222693	issue-trackingx_refsource_REDHAT
https://github.com/keylime/keylime/commit/9e5ac9f…
https://github.com/keylime/keylime/security/advis…
https://lists.fedoraproject.org/archives/list/pac…	x_transferred

Impacted products

1 product

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:6.5.2-6.el9_2 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream

Date Public

2023-08-23 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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