Integer overflow in the _authenticate function in svc_auth.c in Wind River VxWorks 5.5 through 6.9.4.1, when the Remote Procedure Call (RPC) protocol is enabled, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a username and password.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://security.netapp.com/advisory/ntap-20151029-0001/ | |
| https://www.syscan360.org/slides/2015_EN_AttackingVxWorksFromstoneagetointerstellar_Eric_Yannick.pdf | third party advisory technical description |
| http://blogs.windriver.com/wind_river_blog/2015/09/wind-river-vxworks-updateclarification.html | vendor advisory |
| http://www.securityfocus.com/bid/79205 | third party advisory vdb entry |
| https://kb.netapp.com/support/s/article/cve-2015-7599-vxworks-vulnerability-impacting-netapp-e-series-products?language=en_US | vendor advisory |