openSUSE Security Update: NRPE metacharacter filtering omission ______________________________________________________________________________
Announcement ID: openSUSE-SU-2013:0624-1 Rating: important References: #807241 Cross-References: CVE-2013-1362 Affected Products: openSUSE 11.4 ______________________________________________________________________________
An update that fixes one vulnerability is now available.
NRPE (the Nagios Remote Plug-In Executor) allows the passing of $() to plugins/scripts which, if run under bash, will execute that shell command under a subprocess and pass the output as a parameter to the called script. Using this, it is possible to get called scripts, such as check_http, to execute arbitrary commands under the uid that NRPE/nagios is running as (typically, 'nagios').
With this update NRPE will deny remote requests containing a bash command substitution.
To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product:
- openSUSE 11.4:
zypper in -t patch 2013-55
To bring your system up-to-date, use "zypper patch".
- openSUSE 11.4 (i586 x86_64):
nagios-nrpe-2.12-25.2 nagios-nrpe-debuginfo-2.12-25.2 nagios-nrpe-debugsource-2.12-25.2 nagios-nrpe-doc-2.12-25.2 nagios-plugins-nrpe-2.12-25.2 nagios-plugins-nrpe-debuginfo-2.12-25.2