CVE-2019-13565
high-risk
Published 2019-07-26
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.
Do I need to act?
~
3.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (20)
References (32)
Mailing List
http://seclists.org/fulldisclosure/2019/Dec/26
Mailing List
https://seclists.org/bugtraq/2019/Dec/23
Third Party Advisory
https://support.apple.com/kb/HT210788
Third Party Advisory
https://usn.ubuntu.com/4078-1/
Third Party Advisory
https://usn.ubuntu.com/4078-2/
Mailing List
https://www.openldap.org/its/index.cgi/?findid=9052
Mailing List
http://seclists.org/fulldisclosure/2019/Dec/26
and 12 more references
55
/ 100
high-risk
Severity
26/34 · High
Exploitability
7/34 · Low
Exposure
22/34 · High