cvelistv5 - cve-2023-28857

cve-2023-28857

Vulnerability from cvelistv5

Published

2023-06-27 17:10

Modified

2024-08-02 13:51

Severity ?

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

Summary

LDAP password leak in Apereo CAS - GHSL-2023-009

References

URL	Tags
security-advisories@github.com	https://apereo.github.io/2023/02/20/x509-vuln/	Third Party Advisory
security-advisories@github.com	https://github.com/apereo/cas/releases/tag/v6.6.6	Release Notes
security-advisories@github.com	https://securitylab.github.com/advisories/GHSL-2023-009_Apereo_CAS/	Third Party Advisory

Impacted products

▼	Vendor	Product
	Apereo	CAS

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T13:51:38.692Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://securitylab.github.com/advisories/GHSL-2023-009_Apereo_CAS/",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://securitylab.github.com/advisories/GHSL-2023-009_Apereo_CAS/"
          },
          {
            "name": "https://apereo.github.io/2023/02/20/x509-vuln/",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://apereo.github.io/2023/02/20/x509-vuln/"
          },
          {
            "name": "https://github.com/apereo/cas/releases/tag/v6.6.6",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/apereo/cas/releases/tag/v6.6.6"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "CAS",
          "vendor": "Apereo",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 6.5.0, \u003c 6.5.9.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 6.6.0, \u003c 6.6.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Apereo CAS is an open source multilingual single sign-on solution for the web. Apereo CAS can be configured to use authentication based on client X509 certificates. These certificates can be provided via TLS handshake or a special HTTP header, such as \u201cssl_client_cert\u201d. When checking the validity of the provided client certificate, X509CredentialsAuthenticationHandler performs check that this certificate is not revoked. To do so, it fetches URLs provided in the \u201cCRL Distribution Points\u201d extension of the certificate, which are taken from the certificate itself and therefore can be controlled by a malicious user. If the CAS server is configured to use an LDAP server for x509 authentication with a password, for example by setting a \u201ccas.authn.x509.ldap.ldap-url\u201d and \u201ccas.authn.x509.ldap.bind-credential\u201d properties, X509CredentialsAuthenticationHandler fetches revocation URLs from the certificate, which can be LDAP urls. When making requests to this LDAP urls, Apereo CAS uses the same password as for initially configured LDAP server, which can lead to a password leak. An unauthenticated user can leak the password used to LDAP connection configured on server. This issue has been addressed in version 6.6.6. Users are advised to upgrade. There are no known workarounds for this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-27T17:10:47.930Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://securitylab.github.com/advisories/GHSL-2023-009_Apereo_CAS/",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://securitylab.github.com/advisories/GHSL-2023-009_Apereo_CAS/"
        },
        {
          "name": "https://apereo.github.io/2023/02/20/x509-vuln/",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://apereo.github.io/2023/02/20/x509-vuln/"
        },
        {
          "name": "https://github.com/apereo/cas/releases/tag/v6.6.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/apereo/cas/releases/tag/v6.6.6"
        }
      ],
      "source": {
        "advisory": "GHSA-p78h-m8pv-g9gm",
        "discovery": "UNKNOWN"
      },
      "title": "LDAP password leak in Apereo CAS - GHSL-2023-009"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-28857",
    "datePublished": "2023-06-27T17:10:47.930Z",
    "dateReserved": "2023-03-24T16:25:34.468Z",
    "dateUpdated": "2024-08-02T13:51:38.692Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-28857\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2023-06-27T18:15:13.120\",\"lastModified\":\"2023-07-06T18:11:38.887\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Apereo CAS is an open source multilingual single sign-on solution for the web. Apereo CAS can be configured to use authentication based on client X509 certificates. These certificates can be provided via TLS handshake or a special HTTP header, such as \u201cssl_client_cert\u201d. When checking the validity of the provided client certificate, X509CredentialsAuthenticationHandler performs check that this certificate is not revoked. To do so, it fetches URLs provided in the \u201cCRL Distribution Points\u201d extension of the certificate, which are taken from the certificate itself and therefore can be controlled by a malicious user. If the CAS server is configured to use an LDAP server for x509 authentication with a password, for example by setting a \u201ccas.authn.x509.ldap.ldap-url\u201d and \u201ccas.authn.x509.ldap.bind-credential\u201d properties, X509CredentialsAuthenticationHandler fetches revocation URLs from the certificate, which can be LDAP urls. When making requests to this LDAP urls, Apereo CAS uses the same password as for initially configured LDAP server, which can lead to a password leak. An unauthenticated user can leak the password used to LDAP connection configured on server. This issue has been addressed in version 6.6.6. Users are advised to upgrade. There are no known workarounds for this vulnerability.\"}],\"metrics\":{\"cvssMetricV31\":[{\"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:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":4.0,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.2,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-522\"}]},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apereo:central_authentication_service:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5.0\",\"versionEndExcluding\":\"6.5.9.1\",\"matchCriteriaId\":\"32BB7127-CBDB-4413-9C86-C339477005B1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apereo:central_authentication_service:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.0\",\"versionEndExcluding\":\"6.6.6\",\"matchCriteriaId\":\"BB6E83E9-DBE8-4327-B899-A2CD4EF8B739\"}]}]}],\"references\":[{\"url\":\"https://apereo.github.io/2023/02/20/x509-vuln/\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/apereo/cas/releases/tag/v6.6.6\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://securitylab.github.com/advisories/GHSL-2023-009_Apereo_CAS/\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}

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.
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.

Action not permitted

cve-2023-28857

Vulnerability from cvelistv5

ghsa-p78h-m8pv-g9gm

Vulnerability from github

gsd-2023-28857

Vulnerability from gsd

Tags

Sightings

Nomenclature