Vulnerability-Lookup

FKIE_CVE-2020-8989

Vulnerability from fkie_nvd - Published: 2020-02-13 21:15 - Updated: 2026-06-17 03:27

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

In the Voatz application 2020-01-01 for Android, the amount of data transmitted during a single voter's vote depends on the different lengths of the metadata across the available voting choices, which makes it easier for remote attackers to discover this voter's choice by sniffing the network. For example, a small amount of sniffed data may indicate that a vote was cast for the candidate with the least metadata. An active man-in-the-middle attacker can leverage this behavior to disrupt voters' abilities to vote for a candidate opposed by the attacker.

References

URL	Tags
cve@mitre.org	https://blog.voatz.com/?p=1209	Vendor Advisory
cve@mitre.org	https://internetpolicy.mit.edu/wp-content/uploads/2020/02/SecurityAnalysisOfVoatz_Public.pdf	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://blog.voatz.com/?p=1209	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://internetpolicy.mit.edu/wp-content/uploads/2020/02/SecurityAnalysisOfVoatz_Public.pdf	Third Party Advisory

Impacted products

	Vendor	Product	Version
	voatz	voatz	2020-01-01

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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      "source": "cve@mitre.org"
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  "configurations": [
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              "criteria": "cpe:2.3:a:voatz:voatz:2020-01-01:*:*:*:*:android:*:*",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Voatz application 2020-01-01 for Android, the amount of data transmitted during a single voter\u0027s vote depends on the different lengths of the metadata across the available voting choices, which makes it easier for remote attackers to discover this voter\u0027s choice by sniffing the network. For example, a small amount of sniffed data may indicate that a vote was cast for the candidate with the least metadata. An active man-in-the-middle attacker can leverage this behavior to disrupt voters\u0027 abilities to vote for a candidate opposed by the attacker."
    },
    {
      "lang": "es",
      "value": "En la aplicaci\u00f3n Voatz 2020-01-01 para Android, la cantidad de datos transmitidos durante el voto de un solo votante depende de las diferentes longitudes de metadatos por medio de las opciones de votaci\u00f3n disponibles, facilitando a atacantes remotos descubrir esta elecci\u00f3n del votante rastreando la red. Por ejemplo, una peque\u00f1a cantidad de datos analizados puede indicar que se emiti\u00f3 un voto para el candidato con la menor cantidad de metadatos. Un atacante de tipo man-in-the-middle puede aprovechar este comportamiento para alterar las habilidades de los votantes para votar por un candidato al que se oponga el atacante."
    }
  ],
  "id": "CVE-2020-8989",
  "lastModified": "2026-06-17T03:27:18.367",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-02-13T21:15:12.740",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://blog.voatz.com/?p=1209"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://internetpolicy.mit.edu/wp-content/uploads/2020/02/SecurityAnalysisOfVoatz_Public.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://blog.voatz.com/?p=1209"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://internetpolicy.mit.edu/wp-content/uploads/2020/02/SecurityAnalysisOfVoatz_Public.pdf"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-8989 (GCVE-0-2020-8989)

Vulnerability from cvelistv5 – Published: 2020-02-13 20:46 – Updated: 2024-08-04 10:19

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2230 records in the last 180 days details

References

2 references

URL	Tags
https://internetpolicy.mit.edu/wp-content/uploads…	x_refsource_MISC
https://blog.voatz.com/?p=1209	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:19:19.898Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://blog.voatz.com/?p=1209"
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    "cna": {
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          "vendor": "n/a",
          "versions": [
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      "descriptions": [
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          "lang": "en",
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2020-02-13T20:46:12.000Z",
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      "references": [
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://blog.voatz.com/?p=1209"
        }
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      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-8989",
          "STATE": "PUBLIC"
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        "affects": {
          "vendor": {
            "vendor_data": [
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                "product": {
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    "assignerShortName": "mitre",
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    "datePublished": "2020-02-13T20:46:12.000Z",
    "dateReserved": "2020-02-13T00:00:00.000Z",
    "dateUpdated": "2024-08-04T10:19:19.898Z",
    "state": "PUBLISHED"
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}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

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