CVE-2015-4171 (GCVE-0-2015-4171)

Vulnerability from cvelistv5 – Published: 2015-06-10 18:00 – Updated: 2024-08-06 06:04
VLAI
Summary
strongSwan 4.3.0 through 5.x before 5.3.2 and strongSwan VPN Client before 1.4.6, when using EAP or pre-shared keys for authenticating an IKEv2 connection, does not enforce server authentication restrictions until the entire authentication process is complete, which allows remote servers to obtain credentials by using a valid certificate and then reading the responses.
Severity
No CVSS data available.
CWE
  • n/a
Date Public
2015-05-29 00:00
Show details on NVD website

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            "url": "https://play.google.com/store/apps/details?id=org.strongswan.android"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://www.strongswan.org/blog/2015/06/08/strongswan-vulnerability-%2528cve-2015-4171%2529.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.suse.com/security/cve/CVE-2015-4171.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-200"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T12:18:00+00:00",
      "cve": "CVE-2015-4171",
      "id": "CVE-2015-4171",
      "initial_release_date": "2015-06-08T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "strongswan: rogue servers are able to gain user credentials from a client in certain IKEv2 setups",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2015/cve-2015-4171.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-09T00:47:41Z",
      "cve": "CVE-2015-4171",
      "id": "CVE-2015-4171",
      "initial_release_date": "2023-02-15T05:18:12Z",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "61",
      "product_status:recommended": "415",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2015-4171",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2015-4171.json",
      "version": "15"
    }
  }
}



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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.

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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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