CVE-2019-13565

Description

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.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 4.37% Top 15%

Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory openldap.org Vendor Advisory openldap.org

Affected: n/a n/a

References

Link	Tags
https://usn.ubuntu.com/4078-1/	third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00024.html	third party advisory mailing list
https://usn.ubuntu.com/4078-2/	third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html	vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html	vendor advisory mailing list third party advisory
https://seclists.org/bugtraq/2019/Dec/23	third party advisory mailing list
http://seclists.org/fulldisclosure/2019/Dec/26	third party advisory mailing list
https://www.oracle.com/security-alerts/cpuapr2020.html	third party advisory patch
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E	mailing list
https://support.apple.com/kb/HT210788	third party advisory
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	mailing list
https://www.oracle.com/security-alerts/cpuapr2022.html	third party advisory patch
https://www.openldap.org/lists/openldap-announce/201907/msg00001.html	vendor advisory mailing list
https://www.openldap.org/its/index.cgi/?findid=9052	vendor advisory mailing list
https://support.f5.com/csp/article/K98008862?utm_source=f5support&%3Butm_medium=RSS

Frequently Asked Questions

What is the severity of CVE-2019-13565?: CVE-2019-13565 has been scored as a high severity vulnerability.
How to fix CVE-2019-13565?: To fix CVE-2019-13565, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-13565 being actively exploited in the wild?: It is possible that CVE-2019-13565 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.