CVE-1999-0017, widely known as the FTP bounce attack, is a protocol design flaw affecting legacy FTP server implementations from vendors like IBM, Sun, and various BSD distributions that allows attackers to proxy connections to arbitrary ports on third-party machines. Rated as high severity with a CVSS score of 7.5, this vulnerability is exploitable over the network without authentication or high complexity, potentially allowing adversaries to bypass firewall restrictions and conduct internal port scanning. Despite the theoretical risk, current intelligence indicates no active exploitation in the wild, and there are no known exploit modules available in public repositories or the CISA Known Exploited Vulnerabilities catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.01CPE matchmatch criteria | cpe:2.3:a:gnu:inet:5.01:*:*:*:*:*:*:* | ||
6.01CPE matchmatch criteria | cpe:2.3:a:gnu:inet:6.01:*:*:*:*:*:*:* | ||
6.02CPE matchmatch criteria | cpe:2.3:a:gnu:inet:6.02:*:*:*:*:*:*:* | ||
2.4CPE matchmatch criteria | cpe:2.3:a:washington_university:wu-ftpd:2.4:*:*:*:*:*:*:* | ||
1.2CPE matchmatch criteria | cpe:2.3:o:caldera:openlinux:1.2:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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.
Remediation records are not available for this CVE.