CVE-2018-1000134

CRITICAL

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.

Published: Mar 16, 2018 Modified: Jun 17, 2026

CWE-521

CVSS Metrics

CVSSv3

Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (1)

Vendor	Product	Version
pingidentity	ldapsdk	* ≥ 1.1.0

GitHub Security Advisory GHSA-qwq9-8rpf-8mp7

Weak Password Requirements in UnboundID LDAP SDK

maven com.unboundid:unboundid-ldapsdk >= 1.1.0, < 4.0.5 Fixed: 4.0.5

References (6)

http://www.securityfocus.com/bid/103458 Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1713
https://github.com/pingidentity/ldapsdk/issues/40 Third Party Advisory
http://www.securityfocus.com/bid/103458 Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:1713
https://github.com/pingidentity/ldapsdk/issues/40 Third Party Advisory

Risk Scores

CVSS Score 9.8 / 10

EPSS Score 4.74%

Top 9% most likely to be exploited

Threat Score 40.6 / 100

Data Sources

NVD EPSS GitHub