cve/2007/CVE-2007-5276.md

### [CVE-2007-5276](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5276)
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### Description

Opera 9 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80.

### POC

#### Reference
- http://crypto.stanford.edu/dns/dns-rebinding.pdf

#### Github
No PoCs found on GitHub currently.