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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2018-1000134

UnboundID LDAP SDK version from commit 801111d8b5c732266a5dbd4b3bb0b6c7b94d7afb up to commit 8471904a02438c03965d21367890276bc25fa5a6, where the issue was reported and fixed contains an Incorrect Access Control vulnerability in process function in SimpleBindRequest class doesn't check for empty password when running in synchronous mode. commit with applied fix https://github.com/pingidentity/ldapsdk/commit/8471904a02438c03965d21367890276bc25fa5a6#diff-f6cb23b459be1ec17df1da33760087fd that can result in Ability to impersonate any valid user. This attack appear to be exploitable via Providing valid username and empty password against servers that do not do additional validation as per https://tools.ietf.org/html/rfc4513#section-5.1.1. This vulnerability appears to have been fixed in after commit 8471904a02438c03965d21367890276bc25fa5a6.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2018-1000134
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 09:59 UTC · Revision 1

Source evidence

CVE-2018-1000134

core-osv · Original source

Published 16 Mar 2018, 14:29 UTC

UnboundID LDAP SDK version from commit 801111d8b5c732266a5dbd4b3bb0b6c7b94d7afb up to commit 8471904a02438c03965d21367890276bc25fa5a6, where the issue was reported and fixed contains an Incorrect Access Control vulnerability in process function in SimpleBindRequest class doesn't check for empty password when running in synchronous mode. commit with applied fix https://github.com/pingidentity/ldapsdk/commit/8471904a02438c03965d21367890276bc25fa5a6#diff-f6cb23b459be1ec17df1da33760087fd that can result in Ability to impersonate any valid user. This attack appear to be exploitable via Providing valid username and empty password against servers that do not do additional validation as per https://tools.ietf.org/html/rfc4513#section-5.1.1. This vulnerability appears to have been fixed in after commit 8471904a02438c03965d21367890276bc25fa5a6.

osv:CVE-2018-1000134
Complete source record
{
  "id": "2e65f8905c0e0c4219f071e707bd5e55a3f99bb8b20aad2fc56664cf01a57185",
  "url": "https://osv.dev/vulnerability/CVE-2018-1000134",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-1000134",
    "summary": "UnboundID LDAP SDK version from commit 801111d8b5c732266a5dbd4b3bb0b6c7b94d7afb up to commit 8471904a02438c03965d21367890276bc25fa5a6, where the issue was reported and fixed contains an Incorrect Access Control vulnerability in process function in SimpleBindRequest class doesn't check for empty password when running in synchronous mode. commit with applied fix https://github.com/pingidentity/ldapsdk/commit/8471904a02438c03965d21367890276bc25fa5a6#diff-f6cb23b459be1ec17df1da33760087fd that can result in Ability to impersonate any valid user. This attack appear to be exploitable via Providing valid username and empty password against servers that do not do additional validation as per https://tools.ietf.org/html/rfc4513#section-5.1.1. This vulnerability appears to have been fixed in after commit 8471904a02438c03965d21367890276bc25fa5a6.",
    "evidence": "osv:CVE-2018-1000134",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-1000134",
      "aliases": [
        "CVE-2018-1000134",
        "GHSA-qwq9-8rpf-8mp7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pingidentity/ldapsdk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "00055c2a72f32b8a962cbccbfc82d6a11350f3e5"
                },
                {
                  "last_affected": "b28fb50058dfe2864171df2448ad2ad2b4c2ad58"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pingidentity:ldapsdk:*:*:*:*:*:java:*:*",
                    "range": [
                      {
                        "introduced": "1.1.0"
                      },
                      {
                        "last_affected": "4.0.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000134.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:38.999246195Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2018:1713",
        "https://github.com/pingidentity/ldapsdk/issues/40"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-1000134",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380641,
  "published_at": "2018-03-16T14:29:44.927+00:00"
}