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FreeBSD : BIND -- Dynamic update message remote DoS (83725c91-7c7e-11de-9672-00e0815b8da8)
medium Nessus Plugin ID 40461
Synopsis
The remote FreeBSD host is missing one or more security-related updates.Description
When named(8) receives a specially crafted dynamic update message an internal assertion check is triggered which causes named(8) to exit.To trigger the problem, the dynamic update message must contains a record of type 'ANY' and at least one resource record set (RRset) for this fully qualified domain name (FQDN) must exist on the server.
Impact : An attacker which can send DNS requests to a nameserver can cause it to exit, thus creating a Denial of Service situation.
Workaround : No generally applicable workaround is available, but some firewalls may be able to prevent nsupdate DNS packets from reaching the nameserver.
NOTE WELL: Merely configuring named(8) to ignore dynamic updates is NOT sufficient to protect it from this vulnerability.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 40461
File Name: freebsd_pkg_83725c917c7e11de967200e0815b8da8.nasl
Version: 1.18
Type: local
Family: FreeBSD Local Security Checks
Published: 8/3/2009
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.1
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
Vulnerability Information
CPE: p-cpe:/a:freebsd:freebsd:bind9, p-cpe:/a:freebsd:freebsd:bind9-sdb-ldap, p-cpe:/a:freebsd:freebsd:bind9-sdb-postgresql, cpe:/o:freebsd:freebsd
Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/1/2009
Vulnerability Publication Date: 7/28/2009
Exploitable With
Core Impact
Reference Information
CVE: CVE-2009-0696