CVE-2007-2925: allow-query-cache/allow-recursion default acls not set


The default access control lists (acls) are not being correctly set.

Posting date: 
24 Jul 2007
Program Impacted: 
Versions affected: 
9.4.0, 9.4.1, 9.5.0a1, 9.5.0a2, 9.5.0a3, 9.5.0a4, 9.5.0a5 


The default access control lists (acls) are not being correctly set. If not set anyone can make recursive queries and/or query the cache contents.


Explicitly set allow-query-cache and allow-recursion acl's if not already set to:

{ localnets; localhost; };

If recursion is supposed to be allowed to local clients (default).

options {

recursion yes; // default

allow-recursion { localnets; localhost; };

allow-query-cache { localnets; localhost; };



If recursion is disallowed.

options {

recursion no;

allow-query-cache { localnets; localhost; };



Active exploits:

None known at this time.

Related Documents:

See our BIND Security Matrix for a complete listing of Security Vulnerabilities and versions affected.

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