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CVE details

CVE-2019-13565

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.

Score
7.5 high
Published
2019-07-26
Links
NVD · cve.org

Affected ports (1)

PortPackageVersionStatusMaintainer
net/linux-c7-openldaplinux-c7-openldap2.4.44_3unaddressedemulation@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>linux-c7-openldap</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>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.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2019-13565</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2019-13565</url>
    </references>
    <dates>
      <discovery>2019-07-26</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>