CVE-2018-5741

MEDIUM

Description

To provide fine-grained controls over the ability to use Dynamic DNS (DDNS) to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update request. Unfortunately, some rule types were not initially documented, and when documentation for them was added to the Administrator Reference Manual (ARM) in change #3112, the language that was added to the ARM at that time incorrectly described the behavior of two rule types, krb5-subdomain and ms-subdomain. This incorrect documentation could mislead operators into believing that policies they had configured were more restrictive than they actually were. This affects BIND versions prior to BIND 9.11.5 and BIND 9.12.3.

References

http://www.securityfocus.com/bid/105379

http://www.securitytracker.com/id/1041674

https://access.redhat.com/errata/RHSA-2019:2057

https://kb.isc.org/docs/cve-2018-5741

https://security.gentoo.org/glsa/201903-13

https://security.netapp.com/advisory/ntap-20190830-0001/

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us

Details

Source: MITRE

Published: 2019-01-16

Updated: 2019-07-26

Type: CWE-254

Risk Information

CVSS v2.0

Base Score: 4

Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8

Severity: MEDIUM

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM