CVE-2017-3142
Published: 29 June 2017
An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name may be able to circumvent TSIG authentication of AXFR requests via a carefully constructed request packet. A server that relies solely on TSIG keys for protection with no other ACL protection could be manipulated into: providing an AXFR of a zone to an unauthorized recipient or accepting bogus NOTIFY packets. Affects BIND 9.4.0->9.8.8, 9.9.0->9.9.10-P1, 9.10.0->9.10.5-P1, 9.11.0->9.11.1-P1, 9.9.3-S1->9.9.10-S2, 9.10.5-S1->9.10.5-S2.
Notes
| Author | Note |
|---|---|
| sbeattie | may have introduced regression (see isc email) |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
bind9 Launchpad, Ubuntu, Debian |
artful |
Released
(1:9.10.3.dfsg.P4-10.1ubuntu7)
|
| trusty |
Released
(1:9.9.5.dfsg-3ubuntu0.15)
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(1:9.10.3.dfsg.P4-8ubuntu1.7)
|
|
| yakkety |
Released
(1:9.10.3.dfsg.P4-10.1ubuntu1.7)
|
|
| zesty |
Released
(1:9.10.3.dfsg.P4-10.1ubuntu5.1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.7 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |