Access Restriction Bypass Affecting openldap.org package, versions [2.0,2.4.48)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.2% (58th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENLDAPORG-2318897
  • published14 Dec 2021
  • disclosed26 Jul 2019
  • creditUnknown

Introduced: 26 Jul 2019

CVE-2019-13565  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade openldap.org to version 2.4.48 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.

CVSS Scores

version 3.1