Access Restriction Bypass Affecting github.com/go-ldap/ldap package, versions <2.5.0


0.0
high
  • Attack Complexity

    High

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-GOLANG-GITHUBCOMGOLDAPLDAP-50053

  • published

    17 Oct 2017

  • disclosed

    23 Aug 2017

  • credit

    Tiziano Santoro

How to fix?

Upgrade to commit 95ede12 from Aug 24, 2017 or newer.

Overview

github.com/go-ldap/ldap is a basic LDAP v3 functionality for the GO programming language.

Affected versions of the package are vulnerable to Access Restriction Bypass.

In the ldap.v2 (aka go-ldap) package through 2.5.0 for Go, an attacker may be able to login with an empty password. This issue affects an application using this package if these conditions are met: (1) it relies only on the return error of the Bind function call to determine whether a user is authorized (i.e., a nil return value is interpreted as successful authorization) and (2) it is used with an LDAP server allowing unauthenticated bind.