CVE-2021-26728 (GCVE-0-2021-26728)

Vulnerability from cvelistv5 – Published: 2022-10-24 00:00 – Updated: 2024-08-03 20:33
VLAI?
Summary
Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Severity ?
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Lanner Inc IAC-AST2500A Affected: 1.10.0
Create a notification for this product.
Credits
Andrea Palanca of Nozomi Networks found this bug during a security research activity.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:33:40.697Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "IAC-AST2500A",
          "vendor": "Lanner Inc",
          "versions": [
            {
              "status": "affected",
              "version": "1.10.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Andrea Palanca of Nozomi Networks found this bug during a security research activity."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94 Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121 Stack-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-01T00:00:00",
        "orgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c",
        "shortName": "Nozomi"
      },
      "references": [
        {
          "url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"
        },
        {
          "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/"
        }
      ],
      "source": {
        "advisory": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/",
        "discovery": "EXTERNAL"
      },
      "title": "spx_restservice KillDupUsr_func Command Injection and Stack-Based Buffer Overflow",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c",
    "assignerShortName": "Nozomi",
    "cveId": "CVE-2021-26728",
    "datePublished": "2022-10-24T00:00:00",
    "dateReserved": "2021-02-05T00:00:00",
    "dateUpdated": "2024-08-03T20:33:40.697Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"8DD71184-078B-4B7E-BCB5-11E55B5928B7\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9007683B-45DA-471A-9CCB-A587DED8D973\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.\"}, {\"lang\": \"es\", \"value\": \"Unas vulnerabilidades de inyecci\\u00f3n de comandos y desbordamiento del b\\u00fafer en la regi\\u00f3n stack de la memoria en la funci\\u00f3n KillDupUsr_func de spx_restservice permiten a un atacante ejecutar c\\u00f3digo arbitrario con los mismos privilegios que el usuario del servidor (root). Este problema afecta a: Lanner Inc IAC-AST2500A versi\\u00f3n de firmware est\\u00e1ndar 1.10.0\"}]",
      "id": "CVE-2021-26728",
      "lastModified": "2024-11-21T05:56:45.737",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"prodsec@nozominetworks.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\", \"baseScore\": 10.0, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 6.0}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}]}",
      "published": "2022-10-24T14:15:48.127",
      "references": "[{\"url\": \"https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/\", \"source\": \"prodsec@nozominetworks.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/\", \"source\": \"prodsec@nozominetworks.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "prodsec@nozominetworks.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"prodsec@nozominetworks.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-94\"}, {\"lang\": \"en\", \"value\": \"CWE-121\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-77\"}, {\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-26728\",\"sourceIdentifier\":\"prodsec@nozominetworks.com\",\"published\":\"2022-10-24T14:15:48.127\",\"lastModified\":\"2024-11-21T05:56:45.737\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.\"},{\"lang\":\"es\",\"value\":\"Unas vulnerabilidades de inyecci\u00f3n de comandos y desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria en la funci\u00f3n KillDupUsr_func de spx_restservice permiten a un atacante ejecutar c\u00f3digo arbitrario con los mismos privilegios que el usuario del servidor (root). Este problema afecta a: Lanner Inc IAC-AST2500A versi\u00f3n de firmware est\u00e1ndar 1.10.0\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"prodsec@nozominetworks.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":10.0,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"prodsec@nozominetworks.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-94\"},{\"lang\":\"en\",\"value\":\"CWE-121\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-77\"},{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8DD71184-078B-4B7E-BCB5-11E55B5928B7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9007683B-45DA-471A-9CCB-A587DED8D973\"}]}]}],\"references\":[{\"url\":\"https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/\",\"source\":\"prodsec@nozominetworks.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/\",\"source\":\"prodsec@nozominetworks.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.