GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

FKIE_CVE-2021-46279

Vulnerability from fkie_nvd - Published: 2022-10-24 14:15 - Updated: 2026-06-17 04:14
Severity
5.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Session fixation and insufficient session expiration vulnerabilities allow an attacker to perfom session hijacking attacks against users. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
References
prodsec@nozominetworks.comhttps://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/Third Party Advisory
prodsec@nozominetworks.comhttps://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/Third Party Advisory
Impacted products
Vendor Product Version
lannerinc iac-ast2500a_firmware 1.10.0
lannerinc iac-ast2500a -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "IAC-AST2500A",
          "vendor": "Lanner Inc",
          "versions": [
            {
              "status": "affected",
              "version": "1.10.0"
            }
          ]
        }
      ],
      "source": "prodsec@nozominetworks.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "8DD71184-078B-4B7E-BCB5-11E55B5928B7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "9007683B-45DA-471A-9CCB-A587DED8D973",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Session fixation and insufficient session expiration vulnerabilities allow an attacker to perfom session hijacking attacks against users. This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0."
    },
    {
      "lang": "es",
      "value": "unas vulnerabilidades de fijaci\u00f3n de sesi\u00f3n y caducidad de sesi\u00f3n insuficiente permiten a un atacante realizar ataques de secuestro de sesi\u00f3n contra usuarios. Este problema afecta: Lanner Inc IAC-AST2500A versi\u00f3n de firmware est\u00e1ndar 1.10.0"
    }
  ],
  "id": "CVE-2021-46279",
  "lastModified": "2026-06-17T04:14:42.403",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.7,
        "source": "prodsec@nozominetworks.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-46279",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-07T13:40:03.764652Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-10-24T14:15:49.903",
  "references": [
    {
      "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": "prodsec@nozominetworks.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-46279/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "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-2021-46279/"
    }
  ],
  "sourceIdentifier": "prodsec@nozominetworks.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-384"
        },
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ],
      "source": "prodsec@nozominetworks.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-384"
        },
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.