CVE-2023-20236 (GCVE-0-2023-20236)
Vulnerability from cvelistv5
Published
2023-09-13 16:39
Modified
2024-10-23 19:10
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Summary
A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.
Impacted products
Vendor Product Version
Cisco Cisco IOS XR Software Version: 5.2.0
Version: 5.2.1
Version: 5.2.2
Version: 5.2.4
Version: 5.2.3
Version: 5.2.5
Version: 5.2.47
Version: 5.3.0
Version: 5.3.1
Version: 5.3.2
Version: 5.3.3
Version: 5.3.4
Version: 6.0.0
Version: 6.0.1
Version: 6.0.2
Version: 6.1.1
Version: 6.1.2
Version: 6.1.3
Version: 6.1.4
Version: 6.1.12
Version: 6.1.22
Version: 6.1.32
Version: 6.1.36
Version: 6.1.42
Version: 6.2.1
Version: 6.2.2
Version: 6.2.3
Version: 6.2.25
Version: 6.2.11
Version: 6.3.2
Version: 6.3.3
Version: 6.3.15
Version: 6.4.1
Version: 6.4.2
Version: 6.4.3
Version: 6.5.1
Version: 6.5.2
Version: 6.5.3
Version: 6.5.25
Version: 6.5.26
Version: 6.5.28
Version: 6.5.29
Version: 6.5.32
Version: 6.5.33
Version: 6.6.2
Version: 6.6.3
Version: 6.6.25
Version: 6.6.4
Version: 7.0.1
Version: 7.0.2
Version: 7.0.12
Version: 7.0.14
Version: 7.1.1
Version: 7.1.15
Version: 7.1.2
Version: 7.1.3
Version: 6.7.1
Version: 6.7.2
Version: 6.7.3
Version: 6.7.4
Version: 7.2.0
Version: 7.2.1
Version: 7.2.2
Version: 7.3.1
Version: 7.3.15
Version: 7.3.2
Version: 7.3.3
Version: 7.3.5
Version: 7.4.1
Version: 7.4.2
Version: 6.8.1
Version: 6.8.2
Version: 7.5.1
Version: 7.5.3
Version: 7.5.2
Version: 7.5.4
Version: 7.6.1
Version: 7.6.2
Version: 7.7.1
Version: 7.7.2
Version: 7.7.21
Version: 6.9.1
Version: 6.9.2
Version: 7.8.1
Version: 7.8.2
Version: 7.9.1
Version: 7.9.2
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Show details on NVD website


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{\"status\": \"affected\", \"version\": \"7.5.2\"}, {\"status\": \"affected\", \"version\": \"7.5.4\"}, {\"status\": \"affected\", \"version\": \"7.6.1\"}, {\"status\": \"affected\", \"version\": \"7.6.2\"}, {\"status\": \"affected\", \"version\": \"7.7.1\"}, {\"status\": \"affected\", \"version\": \"7.7.2\"}, {\"status\": \"affected\", \"version\": \"7.7.21\"}, {\"status\": \"affected\", \"version\": \"6.9.1\"}, {\"status\": \"affected\", \"version\": \"6.9.2\"}, {\"status\": \"affected\", \"version\": \"7.8.1\"}, {\"status\": \"affected\", \"version\": \"7.8.2\"}, {\"status\": \"affected\", \"version\": \"7.9.1\"}, {\"status\": \"affected\", \"version\": \"7.9.2\"}]}], \"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-ipxe-sigbypass-pymfyqgB\", \"name\": \"cisco-sa-iosxr-ipxe-sigbypass-pymfyqgB\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device.\\r\\n\\r This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-347\", \"description\": \"Improper Verification of Cryptographic Signature\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2024-08-07T19:50:10.951Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-20236\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-16T18:23:20.640Z\", \"dateReserved\": \"2022-10-27T18:47:50.370Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2023-09-13T16:39:19.418Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


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