Description
The default configuration of ISC BIND before 9.4.1-P1, when configured as a caching name server, allows recursive queries and provides additional delegation information to arbitrary IP addresses, which allows remote attackers to cause a denial of service (traffic amplification) via DNS queries with spoofed source IP addresses.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bind9 | 1:9.4.0-1 | — |
| Debian 13 | bind9 | 1:9.4.0-1 | — |
| Debian 12 | bind9 | 1:9.4.0-1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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DNS Amplification Scanner
auxiliary/scanner/dns/dns_amp
GitHub 1 repository
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pcastagnaro/dns_amplification_scanner ★ 2 · Sep 20, 2024
This script checks if each domain from a given domain list is vulnerable to CVE-2006-0987
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.