CVE-2015-4217 describes a vulnerability in Cisco Web Security, Email Security, and Security Management Virtual Appliances (WSAv, ESAv, SMAv) where the remote-support feature uses identical default SSH host keys across different customer installations. This flaw allows remote attackers to bypass cryptographic protections by reusing a known private key from another installation. With a CVSS score of 4.3 (medium severity), the attack requires medium complexity (AC:M) but does not require authentication (Au:N), potentially leading to information disclosure (C:P). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing, though it received limited media coverage and community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
8.4.0.0150CPE matchmatch criteria | cpe:2.3:a:cisco:content_security_management_virtual_appliance:8.4.0.0150:*:*:*:*:*:*:* | ||
9.0.0.087CPE matchmatch criteria | cpe:2.3:a:cisco:content_security_management_virtual_appliance:9.0.0.087:*:*:*:*:*:*:* | ||
8.0.0CPE matchmatch criteria | cpe:2.3:a:cisco:email_security_virtual_appliance:8.0.0:*:*:*:*:*:*:* | ||
8.5.6CPE matchmatch criteria | cpe:2.3:a:cisco:email_security_virtual_appliance:8.5.6:*:*:*:*:*:*:* | ||
8.5.7CPE matchmatch criteria | cpe:2.3:a:cisco:email_security_virtual_appliance:8.5.7:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:P/I:N/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.