JVN#20671901
VxWorks SSH server (IPSSH) denial-of-service (DoS) vulnerability
Overview
The SSH server (IPSSH) implementation in VxWorks contains a denial-of-service (DoS) vulnerability.
Products Affected
- VxWorks versions 6.5 through 6.9
Description
The SSH server (IPSSH) implementation in VxWorks contains a denial-of-service (DoS) vulnerability due to an issue in the processing authentication requests.
Impact
Recieiving a specially crafted packet for a public key authentication request may cause the server to hang and SSH access to be unavailable until the next reboot. In addition, arbitrary code may be executed on the server.
Solution
Apply a patch
Apply the appropriate patch according to the information provided by the developer.
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2013.03.18
| Measures | Conditions | Severity |
|---|---|---|
| Access Required | can be attacked over the Internet using packets |
|
| Authentication | anonymous or no authentication (IP addresses do not count) |
|
| User Interaction Required | the vulnerability can be exploited without an honest user taking any action |
|
| Exploit Complexity | little to no expertise and/or luck required to exploit (cross-side scripting).Expected to be the common response |
|
Credit
Hisashi Kojima and Masahiro Nakada of Fujitsu Laboratories Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert | |
| JPCERT Reports | |
| CERT Advisory |
|
| CPNI Advisory |
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| TRnotes |
|
| CVE |
CVE-2013-0714 |
| JVN iPedia |
JVNDB-2013-000021 |