CVE-2019-3871 describes an insufficient data validation vulnerability in PowerDNS Authoritative Server versions prior to 4.0.7 and 4.1.7, specifically within the HTTP Connector of the Remote backend. This flaw allows an authenticated remote attacker to craft DNS queries that manipulate HTTP requests, potentially leading to a denial of service by directing the server to an invalid endpoint or enabling information disclosure by connecting to internal endpoints. Rated with a CVSS score of 8.8 (High), the vulnerability has a low attack complexity and can result in high impact to confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.0.7CPE matchmatch criteria | cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:* | ||
>= 4.1.0, < 4.1.7CPE matchmatch criteria | cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:* | ||
28CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* | ||
29CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.