Vulnerability-Lookup

WID-SEC-W-2024-1594

Vulnerability from csaf_certbund - Published: 2024-07-10 22:00 - Updated: 2024-07-10 22:00

Summary

Cisco IOS XR: 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: Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das für Cisco Geräte wie z. B. Router und Switches eingesetzt wird.

Angriff: Ein lokaler Angreifer kann eine Schwachstelle in Cisco IOS XR ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme: - CISCO Appliance

CVE-2024-20456

Es besteht eine Schwachstelle im Boot-Prozess von Cisco IOS XR, die auf einen Fehler im Software-Erstellungsprozess zurückzuführen ist. Durch Manipulation der Konfigurationsoptionen des Systems kann ein lokaler, privilegierter Angreifer diese Schwachstelle ausnutzen, um die Secure Boot-Funktionalität zu umgehen und ungeprüfte Software zu laden.

References

3 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://sec.cloudapps.cisco.com/security/center/c…	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": "Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das f\u00fcr Cisco Ger\u00e4te wie z. B. Router und Switches eingesetzt wird.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in Cisco IOS XR ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "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-2024-1594 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1594.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-1594 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1594"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories vom 2024-07-10",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xr-secure-boot-quD5g8Ap"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco IOS XR: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2024-07-10T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:11:13.947+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-1594",
      "initial_release_date": "2024-07-10T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-07-10T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c24.2.11",
                "product": {
                  "name": "Cisco IOS XR \u003c24.2.11",
                  "product_id": "T036073"
                }
              }
            ],
            "category": "product_name",
            "name": "IOS XR"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-20456",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle im Boot-Prozess von Cisco IOS XR, die auf einen Fehler im Software-Erstellungsprozess zur\u00fcckzuf\u00fchren ist. Durch Manipulation der Konfigurationsoptionen des Systems kann ein lokaler, privilegierter Angreifer diese Schwachstelle ausnutzen, um die Secure Boot-Funktionalit\u00e4t zu umgehen und ungepr\u00fcfte Software zu laden."
        }
      ],
      "release_date": "2024-07-10T22:00:00.000+00:00",
      "title": "CVE-2024-20456"
    }
  ]
}

CVE-2024-20456 (GCVE-0-2024-20456)

Vulnerability from cvelistv5 – Published: 2024-07-10 16:06 – Updated: 2024-08-01 21:59

Summary

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Cisco Secure Boot functionality and load unverified software on an affected device. To exploit this successfully, the attacker must have root-system privileges on the affected device. This vulnerability is due to an error in the software build process. An attacker could exploit this vulnerability by manipulating the system’s configuration options to bypass some of the integrity checks that are performed during the booting process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass of the requirement to run Cisco signed images or alter the security properties of the running system.

Severity

6.7 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-07-11 00:00 UTC

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 377 records in the last 180 days details

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

2 products

Vendor	Product	Version
Cisco	Cisco IOS XR Software	Affected: 24.2.1
cisco	ios_xr_software	Affected: 24.2.1 cpe:2.3:o:cisco:ios_xr_software:24.2.1:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:cisco:ios_xr_software:24.2.1:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "ios_xr_software",
            "vendor": "cisco",
            "versions": [
              {
                "status": "affected",
                "version": "24.2.1"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-20456",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-11T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-12T03:55:19.039Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T21:59:42.190Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "cisco-sa-xr-secure-boot-quD5g8Ap",
            "tags": [
              "x_transferred"
            ],
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xr-secure-boot-quD5g8Ap"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS XR Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "24.2.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Cisco Secure Boot functionality and load unverified software on an affected device. To exploit this successfully, the attacker must have root-system privileges on the affected device.\r\n\r This vulnerability is due to an error in the software build process. An attacker could exploit this vulnerability by manipulating the system\u0026rsquo;s configuration options to bypass some of the integrity checks that are performed during the booting process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass of the requirement to run Cisco signed images or alter the security properties of the running system."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-732",
              "description": "Incorrect Permission Assignment for Critical Resource",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-07-10T16:06:22.104Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-xr-secure-boot-quD5g8Ap",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xr-secure-boot-quD5g8Ap"
        }
      ],
      "source": {
        "advisory": "cisco-sa-xr-secure-boot-quD5g8Ap",
        "defects": [
          "CSCwk58609"
        ],
        "discovery": "INTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2024-20456",
    "datePublished": "2024-07-10T16:06:22.104Z",
    "dateReserved": "2023-11-08T15:08:07.679Z",
    "dateUpdated": "2024-08-01T21:59:42.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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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.
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