A flaw was found in the way BIND handled TSIG authentication of AXFR requests. A remote attacker, able to communicate with an authoritative BIND server, could use this flaw to view the entire contents of a zone by sending a specially constructed request packet.
Find out more about CVE-2017-3142 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS3 Base Score | 5.3 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity Impact | None |
Availability Impact | None |
Platform | Errata | Release Date |
---|---|---|
Red Hat Enterprise Linux 7 (bind) | RHSA-2017:1680 | 2017-07-05 |
Red Hat Enterprise Linux 6 (bind) | RHSA-2017:1679 | 2017-07-05 |
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 5 | bind97 | Will not fix |
Red Hat Enterprise Linux 5 | bind | Not affected |
The effects of this vulnerability can be mitigated by using Access Control Lists (ACLs) that require both address range validation and use of TSIG authentication in parallel. For information on how to configure this type of compound authentication control, please see: