Incorrect Authorization Affecting bind package, versions [,9.11.5)[9.12.0,9.12.3)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.56% (78th percentile)

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  • Snyk IDSNYK-UNMANAGED-BIND-2381984
  • published26 Jan 2022
  • disclosed16 Jan 2019
  • creditUnknown

Introduced: 16 Jan 2019

CVE-2018-5741  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade bind to version 9.11.5, 9.12.3 or higher.

Overview

Affected versions of this package are vulnerable to Incorrect Authorization. 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

CVSS Scores

version 3.1