Vulnerabilities in pkg:golang/github.com/go-ldap/ldap

PACKAGE
Advisory Identifier: GHSA-x27w-qxhg-343v
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Advisory Summary

CVE-2017-14623 is a HIGH (CVSS 8.1) access restriction bypass vulnerability (CWE-287: Improper Authentication) affecting Github.com/go ldap/ldap libraries in the Go ecosystem. The issue involves access restriction bypass in go-ldap. Remediation is available by upgrading affected packages to version 2.5.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:golang/github.com/go-ldap/ldap

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:golang/github.com/go-ldap/ldap. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-x27w-qxhg-343v CVE-2017-14623 HIGH Access Restriction Bypass in go-ldap

CVE-2017-14623 at a Glance

CVE Identifier CVE-2017-14623
GHSA Identifier GHSA-x27w-qxhg-343v
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-287: Improper Authentication
Affected Product Github.com/go ldap/ldap
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 8.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2017-14623

To remediate this vulnerability, upgrade all affected Github.com/go ldap/ldap dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/go-ldap/ldap fixed: 2.5.0 
Upgrade github.com/go-ldap/ldap to 2.5.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/go-ldap/ldap

How to Check if You Are Affected

To determine whether your application is affected by CVE-2017-14623, inspect your project dependencies for Github.com/go ldap/ldap:

inspect dependencies for github.com/go-ldap/ldap

Analyze the terminal output to locate any version of Github.com/go ldap/ldap in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.5.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Github.com/go ldap/ldap, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2017-14623 Affected Github.com/go ldap/ldap Versions

1 component(s)
Fixed Versions:
2.5.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/go-ldap/ldap
golang/github.com/go-ldap/ldap
Go
< 2.5.0
2.5.0

References

NVD — CVE-2017-14623 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14623
Github.com/go ldap/ldap Source Repository REPOSITORY
https://github.com/go-ldap/ldap/pull/126
Security Fix Commit FIX COMMIT
https://github.com/go-ldap/ldap/commit/95ede1266b237bf8e9aa5dce0b3250e51bfefe66

Frequently Asked Questions

What is CVE-2017-14623?
CVE-2017-14623 is a security vulnerability in Github.com/go ldap/ldap involving Access Restriction Bypass in go-ldap under CWE-287: Improper Authentication.
Which Github.com/go ldap/ldap versions are affected?
Affected versions include releases prior to 2.5.0 across affected packages: github.com/go-ldap/ldap.
What version fixes CVE-2017-14623?
Upgrading to 2.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/go-ldap/ldap affected?
Yes, github.com/go-ldap/ldap is affected in releases prior to 2.5.0. Upgrade your dependency to 2.5.0 or later.
What is the CVSS score of CVE-2017-14623?
CVE-2017-14623 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2017-14623?
CVE-2017-14623 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Go dependencies for CVE-2017-14623?
Run the dependency tree command: 'inspect dependencies for github.com/go-ldap/ldap'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-x27w-qxhg-343v",
  "modified" : "2024-04-22T19:05:51Z",
  "published" : "2022-02-15T01:57:18Z",
  "aliases" : [ "CVE-2017-14623" ],
  "summary" : "Access Restriction Bypass in go-ldap",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/go-ldap/ldap"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-14623"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-ldap/ldap/pull/126"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/go-ldap/ldap/commit/95ede1266b237bf8e9aa5dce0b3250e51bfefe66"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-20T17:02:56Z",
    "nvd_published_at" : "2017-09-20T23:29:00Z"
  }
}