CVE-2015-4216: Infoleak
First published: Fri Jun 26 2015(Updated: )
The remote-support feature on Cisco Web Security Virtual Appliance (WSAv), Email Security Virtual Appliance (ESAv), and Security Management Virtual Appliance (SMAv) devices before 2015-06-25 uses the same default SSH root authorized key across different customers' installations, which makes it easier for remote attackers to bypass authentication by leveraging knowledge of a private key from another installation, aka Bug IDs CSCuu95988, CSCuu95994, and CSCuu96630.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Content Security Management Virtual Appliance | =8.4.0.0150 | |
| Cisco Content Security Management Virtual Appliance | =9.0.0.087 | |
| SonicWall Email Security Virtual Appliance | =8.0.0 | |
| SonicWall Email Security Virtual Appliance | =8.5.6 | |
| SonicWall Email Security Virtual Appliance | =8.5.7 | |
| SonicWall Email Security Virtual Appliance | =9.0.0 | |
| Cisco Web Security Virtual Appliance | =7.7.5 | |
| Cisco Web Security Virtual Appliance | =8.0.5 | |
| Cisco Web Security Virtual Appliance | =8.5.0 | |
| Cisco Web Security Virtual Appliance | =8.5.1 | |
| Cisco Web Security Virtual Appliance | =8.6.0 | |
| Cisco Web Security Virtual Appliance | =8.7.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2015-4216?
CVE-2015-4216 has a high severity rating due to the use of default SSH root authorized keys in multiple installations.
How do I fix CVE-2015-4216?
To mitigate CVE-2015-4216, users should change the default SSH root authorized key and ensure that all appliances are updated to the latest software version.
What products are affected by CVE-2015-4216?
CVE-2015-4216 affects Cisco Web Security Virtual Appliance, Email Security Virtual Appliance, and Security Management Virtual Appliance before the specified patch date.
What vulnerabilities does CVE-2015-4216 introduce?
CVE-2015-4216 allows unauthorized access to devices due to the common SSH root key across different users, posing a significant security risk.
Is there a way to check if my system is affected by CVE-2015-4216?
Admins can check the device's SSH configuration and compare software versions against Cisco's advisory to identify if they are affected by CVE-2015-4216.
- agent/type
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco content security management virtual appliance
- version/cisco content security management virtual appliance/8.4.0.0150
- version/cisco content security management virtual appliance/9.0.0.087
- canonical/sonicwall email security virtual appliance
- version/sonicwall email security virtual appliance/8.0.0
- version/sonicwall email security virtual appliance/8.5.6
- version/sonicwall email security virtual appliance/8.5.7
- version/sonicwall email security virtual appliance/9.0.0
- canonical/cisco web security virtual appliance
- version/cisco web security virtual appliance/7.7.5
- version/cisco web security virtual appliance/8.0.5
- version/cisco web security virtual appliance/8.5.0
- version/cisco web security virtual appliance/8.5.1
- version/cisco web security virtual appliance/8.6.0
- version/cisco web security virtual appliance/8.7.0