CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:P/A:P
EPSS
Percentile
98.8%
The Microsoft Windows DNS server contains a response validation vulnerability. If successfully exploited, this vulnerability may allow an attacker to poison the affected DNS serverβs cache.
The Domain Name System (DNS
) is responsible for translating host names to IP addresses (and vice versa) and is critical for the normal operation of internet-connected systems.
Per Microsoft Security Bulletin MS09-008:
A response validation vulnerability exists in Windows DNS Server. The vulnerability could allow an unauthenticated remote attacker to send specially crafted queries to a DNS server so as to allow greater predictability of transaction IDs used by the DNS server and thus to redirect Internet traffic from legitimate locations.
An attacker may be able to insert arbitrary values in the DNS cache. An attacker with the ability to conduct a successful attack can cause a nameserverβs clients to contact the incorrect, and possibly malicious, hosts for particular services. Consequently, web traffic, email, and other important network data can be redirected to systems under the attackerβs control.
Upgrade
Microsoft has released an update to address this issue. See <http://www.microsoft.com/technet/security/bulletin/MS09-008.mspx> for more information.
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Updated: March 10, 2009
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
See <http://www.microsoft.com/technet/security/bulletin/MS09-008.mspx> for more information.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23319331 Feedback>).
Group | Score | Vector |
---|---|---|
Base | 0 | AV:β/AC:β/Au:β/C:β/I:β/A:β |
Temporal | 0 | E:Not Defined (ND)/RL:Not Defined (ND)/RC:Not Defined (ND) |
Environmental | 0 | CDP:Not Defined (ND)/TD:Not Defined (ND)/CR:Not Defined (ND)/IR:Not Defined (ND)/AR:Not Defined (ND) |
Information from Microsoft Security Bulletin MS09-008 was used in this report. Microsoft credits Kevin Day and Dave Dagon for providing assistance with this issue.
This document was written by Ryan Giobbi.
CVE IDs: | CVE-2009-0234 |
---|---|
Severity Metric: | 10.13 Date Public: |