CVE-2024-20343 (GCVE-0-2024-20343)

Vulnerability from cvelistv5 – Published: 2024-09-11 16:38 – Updated: 2024-09-11 20:41
VLAI?
Summary
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to read any file in the file system of the underlying Linux operating system. The attacker must have valid credentials on the affected device. This vulnerability is due to incorrect validation of the arguments that are passed to a specific CLI command. An attacker could exploit this vulnerability by logging in to an affected device with low-privileged credentials and using the affected command. A successful exploit could allow the attacker access files in read-only mode on the Linux file system.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco IOS XR Software Affected: 6.5.3
Affected: 6.6.1
Affected: 6.5.2
Affected: 6.5.92
Affected: 6.5.1
Affected: 6.5.15
Affected: 6.6.2
Affected: 7.0.1
Affected: 6.6.25
Affected: 6.6.11
Affected: 6.5.93
Affected: 6.6.12
Affected: 7.0.0
Affected: 7.1.1
Affected: 7.0.90
Affected: 6.6.3
Affected: 7.0.2
Affected: 7.1.15
Affected: 7.2.0
Affected: 7.2.1
Affected: 7.1.2
Affected: 7.0.11
Affected: 7.0.12
Affected: 7.0.14
Affected: 7.1.25
Affected: 6.6.4
Affected: 7.2.12
Affected: 7.3.1
Affected: 7.1.3
Affected: 7.4.1
Affected: 7.2.2
Affected: 7.3.15
Affected: 7.3.16
Affected: 7.4.15
Affected: 7.3.2
Affected: 7.5.1
Affected: 7.4.16
Affected: 7.3.27
Affected: 7.6.1
Affected: 7.5.2
Affected: 7.8.1
Affected: 7.6.15
Affected: 7.5.12
Affected: 7.8.12
Affected: 7.3.3
Affected: 7.7.1
Affected: 7.3.4
Affected: 7.4.2
Affected: 7.6.2
Affected: 7.5.3
Affected: 7.7.2
Affected: 7.9.1
Affected: 7.10.1
Affected: 7.8.2
Affected: 7.5.4
Affected: 7.8.22
Affected: 7.7.21
Affected: 7.9.2
Affected: 7.3.5
Affected: 7.5.5
Affected: 7.11.1
Affected: 7.9.21
Affected: 7.10.2
Affected: 24.1.1
Affected: 7.3.6
Affected: 7.5.52
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to read any file in the file system of the underlying Linux operating system. The attacker must have valid credentials on the affected device.\\r\\n\\r\\nThis vulnerability is due to incorrect validation of the arguments that are passed to a specific CLI command. An attacker could exploit this vulnerability by logging in to an affected device with low-privileged credentials and using the affected command. A successful exploit could allow the attacker access files in read-only mode on the Linux file system.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la CLI del software Cisco IOS XR podr\\u00eda permitir que un atacante local autenticado lea cualquier archivo en el sistema de archivos del sistema operativo Linux subyacente. El atacante debe tener credenciales v\\u00e1lidas en el dispositivo afectado. Esta vulnerabilidad se debe a una validaci\\u00f3n incorrecta de los argumentos que se pasan a un comando CLI espec\\u00edfico. Un atacante podr\\u00eda aprovechar esta vulnerabilidad iniciando sesi\\u00f3n en un dispositivo afectado con credenciales con pocos privilegios y utilizando el comando afectado. Una explotaci\\u00f3n exitosa podr\\u00eda permitir que el atacante acceda a archivos en modo de solo lectura en el sistema de archivos Linux.\"}]",
      "id": "CVE-2024-20343",
      "lastModified": "2024-10-07T17:42:40.777",
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      "published": "2024-09-11T17:15:12.223",
      "references": "[{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-shellutil-HCb278wD\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}]",
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Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-20343\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-11T20:41:16.378675Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T20:41:31.458Z\"}}], \"cna\": {\"title\": \"Cisco IOS XR Software CLI Arbitrary File Read Vulnerability\", \"source\": {\"defects\": [\"CSCwi71881\"], \"advisory\": \"cisco-sa-iosxr-shellutil-HCb278wD\", \"discovery\": \"EXTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco IOS XR Software\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.5.3\"}, {\"status\": \"affected\", \"version\": \"6.6.1\"}, {\"status\": \"affected\", \"version\": \"6.5.2\"}, {\"status\": \"affected\", \"version\": \"6.5.92\"}, {\"status\": \"affected\", \"version\": \"6.5.1\"}, {\"status\": \"affected\", \"version\": \"6.5.15\"}, {\"status\": \"affected\", \"version\": \"6.6.2\"}, {\"status\": \"affected\", \"version\": \"7.0.1\"}, {\"status\": \"affected\", \"version\": \"6.6.25\"}, {\"status\": \"affected\", \"version\": \"6.6.11\"}, {\"status\": \"affected\", \"version\": \"6.5.93\"}, {\"status\": \"affected\", \"version\": \"6.6.12\"}, {\"status\": \"affected\", \"version\": \"7.0.0\"}, {\"status\": 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\"affected\", \"version\": \"7.3.16\"}, {\"status\": \"affected\", \"version\": \"7.4.15\"}, {\"status\": \"affected\", \"version\": \"7.3.2\"}, {\"status\": \"affected\", \"version\": \"7.5.1\"}, {\"status\": \"affected\", \"version\": \"7.4.16\"}, {\"status\": \"affected\", \"version\": \"7.3.27\"}, {\"status\": \"affected\", \"version\": \"7.6.1\"}, {\"status\": \"affected\", \"version\": \"7.5.2\"}, {\"status\": \"affected\", \"version\": \"7.8.1\"}, {\"status\": \"affected\", \"version\": \"7.6.15\"}, {\"status\": \"affected\", \"version\": \"7.5.12\"}, {\"status\": \"affected\", \"version\": \"7.8.12\"}, {\"status\": \"affected\", \"version\": \"7.3.3\"}, {\"status\": \"affected\", \"version\": \"7.7.1\"}, {\"status\": \"affected\", \"version\": \"7.3.4\"}, {\"status\": \"affected\", \"version\": \"7.4.2\"}, {\"status\": \"affected\", \"version\": \"7.6.2\"}, {\"status\": \"affected\", \"version\": \"7.5.3\"}, {\"status\": \"affected\", \"version\": \"7.7.2\"}, {\"status\": \"affected\", \"version\": \"7.9.1\"}, {\"status\": \"affected\", \"version\": \"7.10.1\"}, {\"status\": \"affected\", \"version\": \"7.8.2\"}, {\"status\": \"affected\", \"version\": \"7.5.4\"}, {\"status\": \"affected\", \"version\": \"7.8.22\"}, {\"status\": \"affected\", \"version\": \"7.7.21\"}, {\"status\": \"affected\", \"version\": \"7.9.2\"}, {\"status\": \"affected\", \"version\": \"7.3.5\"}, {\"status\": \"affected\", \"version\": \"7.5.5\"}, {\"status\": \"affected\", \"version\": \"7.11.1\"}, {\"status\": \"affected\", \"version\": \"7.9.21\"}, {\"status\": \"affected\", \"version\": \"7.10.2\"}, {\"status\": \"affected\", \"version\": \"24.1.1\"}, {\"status\": \"affected\", \"version\": \"7.3.6\"}, {\"status\": \"affected\", \"version\": \"7.5.52\"}], \"defaultStatus\": \"unknown\"}], \"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.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-shellutil-HCb278wD\", \"name\": \"cisco-sa-iosxr-shellutil-HCb278wD\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to read any file in the file system of the underlying Linux operating system. The attacker must have valid credentials on the affected device.\\r\\n\\r\\nThis vulnerability is due to incorrect validation of the arguments that are passed to a specific CLI command. An attacker could exploit this vulnerability by logging in to an affected device with low-privileged credentials and using the affected command. A successful exploit could allow the attacker access files in read-only mode on the Linux file system.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-284\", \"description\": \"Improper Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2024-09-11T16:38:06.326Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-20343\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-11T20:41:38.914Z\", \"dateReserved\": \"2023-11-08T15:08:07.643Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2024-09-11T16:38:06.326Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.



Detection rules are retrieved from Rulezet.