CVE-2011-4408 describes a critical vulnerability in the Ubuntu Single Sign On Client (ubuntu-sso-client) for Ubuntu 11.04 and 11.10, where improper SSL certificate validation allows remote attackers to conduct man-in-the-middle (MITM) attacks. This flaw enables attackers to spoof servers, leading to the modification or exfiltration of sensitive user data. With a CVSS score of 6.8, this vulnerability is moderately severe, requiring medium attack complexity but allowing unauthenticated network access to achieve partial confidentiality, integrity, and availability impacts. 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 |
|---|---|---|---|
11.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* | ||
11.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.