This can be detected by a response with a status code of 503 (Service Unavailable) or 4XX (client error) and a detailed diagnostic message in the reply. To successfully exploit this vulnerability, the attacker must be able to forge responses that have a malformed ECDSA signature.

CVE-2018-7600: Client Certificate Forgery - It is possible to spoof the client certificate of a resolver to forge a legitimate request that cannot be validated. This can be used to force a resolver to make an out of memory error.

CVE-2018-7601: DNS Response Splitting - It is possible to split DNS responses between multiple upstream servers. Doing so can cause an attack to be load balanced across a range of upstream servers, increasing the likelihood of successful exploitation.

CVE-2018-7602: Unvalidated Redirection - It is possible to redirect a user to a malicious site via an unvalidated 301 (permanent) redirection. Redirection happens when a user requests a new URL via a browser and the request is forwarded to another host. This can be exploited to force a user to visit a malicious site.

CVE-2018-7603: DNS Cache Poisoning - It is possible to trick a resolver into caching an invalid response. This can be used to launch a series of attacks quickly, as there is a high probability that the spoofed response will be cached by the resolver.

CVE-2018-

Stay up to date and learn more about how to protect yourself.

The best way to stay up to date on the latest security flaws is by following what's happening in the news, or by becoming a regular reader and subscriber of cybersecurity journals.
One of the most important steps you can take when it comes to staying protected is checking for updates for your computer and other devices. For example, often software will have downloads that are available for your device, which will improve the security of your machine.

Timeline

Published on: 09/21/2022 11:15:00 UTC
Last modified on: 09/27/2022 23:15:00 UTC

References