Jouni Malinen discovered that a string supplied from a remote device could be supplied to a system() call in wpacli or hostapdcli when running an action script (with the "-a" option), resulting in arbitrary command execution. This issue could also be triggered by an attacker within radio range.

Patches are available from the following:

http://w1.fi/security/2014-1/

Based on the information about affected configurations in the upstream advisory, Red Hat Enterprise Linux 5 is likely to be not vulnerable, but Red Hat Enterprise Linux 6 and 7 are likely to be vulnerable.

Acknowledgements:

Red Hat would like to thank Jouni Malinen for reporting this issue.

References:

http://w1.fi/security/2014-1/ http://www.openwall.com/lists/oss-security/2014/10/09/28