NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
skilke
Sep 25, 2014Aspirant
BASH exploit - Shellshock
Hi
I have a ReadyNas Ultra 2 and it has version 3.1.17 of BASH installed which has a High risk vulnerability.
Can somebody please explain how to patch BASH so that my system is not at risk from this vulnerability. I have tried downloading the source, the patch and patching but 1 file did not patch successfully. If anyone can post some step by step instructions it would be really appreciated (as I am not an expert).
Many thanks
K
I have a ReadyNas Ultra 2 and it has version 3.1.17 of BASH installed which has a High risk vulnerability.
Can somebody please explain how to patch BASH so that my system is not at risk from this vulnerability. I have tried downloading the source, the patch and patching but 1 file did not patch successfully. If anyone can post some step by step instructions it would be really appreciated (as I am not an expert).
Many thanks
K
76 Replies
Replies have been turned off for this discussion
- mdgm-ntgrNETGEAR Employee RetiredYou could change the sources list back if you want.
- schmitzmAspirant
mdgm wrote: Yes it does have both patches. You can confirm this by examining the apt-get repository. It should show up in the GPL once there is a production 4.2.27 release.
Thanks for confirming this - the date of your announcement (Sep. 25th) had me confused, I thought the second patch relating to this issue had only been available from the 26th. - schmitzmAspirant
wtriba wrote: schmitzm wrote: @GibsonLP - I understand the latest beta addresses the issue - it would be nice to have confirmation that the beta includes both of the patches to bash though.
Following your writeup, I have managed to cross-build patched bash-3.2 and bash-2.05b binaries - I'll still need to run the testsuites from the source distribution to feel confident enough to replace the old binary.
I'm definitely interested in the 2.05b binary for my NV+. If/when you're going to make that available, I'd love to get a copy. Thanks!
Running the testsuite on both 2.05b and 3.2 bash binaries reveals that cross compiling bash is a bit tricky. Job control is missing, among other features.
I'll try to fudge a few of these configure tests, but really, you may be better off trying the beta firmware image posted on Thursday. - wtribaAspirantI'd like to install 4.1.14 beta on my NV+. Is there a direct link to download this?
Thanks! - chirpaLuminary
http://www.readynas.com/download/beta/r ... -4.1.14-T5wtriba wrote: I'd like to install 4.1.14 beta on my NV+. Is there a direct link to download this? - schmitzmAspirant
wtriba wrote: I'd like to install 4.1.14 beta on my NV+. Is there a direct link to download this?
Thanks!
http://www.readynas.com/download/beta/raidiator/4.1.14/RAIDiator-4.1.14-T5 - mdgm-ntgrNETGEAR Employee Retired
schmitzm wrote: mdgm wrote: Yes it does have both patches. You can confirm this by examining the apt-get repository. It should show up in the GPL once there is a production 4.2.27 release.
Thanks for confirming this - the date of your announcement (Sep. 25th) had me confused, I thought the second patch relating to this issue had only been available from the 26th.
Skywalker mentioned he'd posted the betas here: http://www.readynas.com/forum/viewtopic.php?p=435054#p435054
Which in Australia at least was on the 26th. I think from a quick search the second patch was released late on the 25th (PST in the US). - schmitzmAspirantI'm probably running a rather dated version of RAIDiator on our NAS - can't check the version since I shut down frontview pretty much first thing when the news broke. Are there any update prerequisites for the current betas - i.e. requirement for a minimum release level?
- mdgm-ntgrNETGEAR Employee Retired
schmitzm wrote:
I'm probably running a rather dated version of RAIDiator on our NAS - can't check the version since I shut down frontview pretty much first thing when the news broke. Are there any update prerequisites for the current betas - i.e. requirement for a minimum release level?
What model do you have?
There shouldn't be an issue.
Of course it is a good idea to ensure you have an up to date backup first.
There is a very low chance that this vulnerability would be exploited especially if you don't forward ports to the NAS. That's not to say there isn't a way, but we haven't found any.
However if you are concerned I would turn off port forwards until after updating to the beta with the patch (or a newer release) - wtribaAspirant
schmitzm wrote: wtriba wrote: I'd like to install 4.1.14 beta on my NV+. Is there a direct link to download this?
Thanks!
http://www.readynas.com/download/beta/r ... -4.1.14-T5
The FW update to 4.1.14-T5 went fine on my NV+ (v1) and all is well. Confirmed shellshock is no longer an issue with this release.
Thank you!
Related Content
NETGEAR Academy

Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!