An authentication bypass flaw was found in the way krb5's certauth interface handled the validation of client certificates. A remote attacker able to communicate with the KDC could potentially use this flaw to impersonate arbitrary principals under rare and erroneous circumstances.
Find out more about CVE-2017-7562 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 6.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | High |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (krb5) | RHSA-2018:0666 | 2018-04-10 |
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss EWS 2 | krb5 | Not affected |
| Red Hat JBoss EAP 6 | krb5 | Not affected |
| Red Hat JBoss Core Services 1 | krb5 | Not affected |
| Red Hat Enterprise Linux 6 | krb5 | Not affected |
| Red Hat Enterprise Linux 5 | krb5 | Not affected |
Vulmon