update-policy rules of type "subdomain" are enforced incorrectly

CVE-2020-8624

4.3MEDIUM

Key Information

Vendor
Isc
Status
Bind9
Vendor
CVE Published:
21 August 2020

Badges

👾 Exploit Exists

Summary

In BIND 9.9.12 -> 9.9.13, 9.10.7 -> 9.10.8, 9.11.3 -> 9.11.21, 9.12.1 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.12-S1 -> 9.9.13-S1, 9.11.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker who has been granted privileges to change a specific subset of the zone's content could abuse these unintended additional privileges to update other contents of the zone.

Affected Version(s)

BIND9 9.9.12

BIND9 <= 9.9.13

BIND9 9.10.7

References

https://kb.isc.org/docs/cve-2020-8624
x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA
https://security.netapp.com/advisory/ntap-20200827-0003/
x_refsource_CONFIRM

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

ISC would like to thank Joop Boonen of credativ GmbH for bringing this vulnerability to our attention.
.