CERTFR-2021-AVI-004
Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans la bibliothèque cryptographique Bouncy Castle. Elle permet à un attaquant de provoquer un contournement de la politique de sécurité. Une erreur de programmation, introduite dans les versions 1.65 et 1.66 de la bibliothèque, permet de tromper la méthode de vérification d'un mot de passe OpenBSDBCrypt.checkPassword() et faire valider un mot de passe différent du mot de passe légitime en quelques tentatives.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None
Impacted products
Vendor Product Description
N/A N/A Bibliothèque cryptographique Bouncy Castle versions 1.65 et 1.66
References

Show details on source website

To clipboard 

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Biblioth\u00e8que cryptographique Bouncy Castle versions 1.65 et 1.66",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "N/A",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2020-28052",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-28052"
    }
  ],
  "initial_release_date": "2021-01-06T00:00:00",
  "last_revision_date": "2021-01-06T00:00:00",
  "links": [],
  "reference": "CERTFR-2021-AVI-004",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2021-01-06T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans la biblioth\u00e8que\ncryptographique Bouncy Castle. Elle permet \u00e0 un attaquant de provoquer\nun contournement de la politique de s\u00e9curit\u00e9. Une erreur de\nprogrammation, introduite dans les versions 1.65 et 1.66 de la\nbiblioth\u00e8que, permet de tromper la m\u00e9thode de v\u00e9rification d\u0027un mot de\npasse *OpenBSDBCrypt.checkPassword()* et faire valider un mot de passe\ndiff\u00e9rent du mot de passe l\u00e9gitime en quelques tentatives.\n",
  "title": "Vuln\u00e9rabilit\u00e9 dans Bouncy Castle",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Bouncy Castle du 01 novembre 2020",
      "url": "https://www.bouncycastle.org/releasenotes.html"
    }
  ]
}


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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • 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.