taint

How to reserve certain worker nodes for a namespace

由 天涯浪子 提交于 2020-01-26 04:00:13
问题 I would like to reserve some worker nodes for a namespace. I see the notes of stackflow and medium How to assign a namespace to certain nodes? https://medium.com/@alejandro.ramirez.ch/reserving-a-kubernetes-node-for-specific-nodes-e75dc8297076 I understand we can use taint and nodeselector to achieve that. My question is if people get to know the details of nodeselector or taint, how can we prevent them to deploy pods into these dedicated worker nodes. thank you 回答1: To accomplish what you

showing error Insecure dependency in parameter 3 of DBI::db=HASH(0xa32bd40)->do method call while running with -T switch

由 老子叫甜甜 提交于 2019-12-24 00:31:48
问题 i got the error Insecure dependency in parameter 3 of DBI::db=HASH(0xa32bd40)->do method call while running with -T switch while i modified the file show_bug.cgi what is the reason? 回答1: To untaint a variable, you must match it against a capturing regular expression. See perlsec - Perl Security for details. 回答2: To untaint ie. variable $unsecure , a regular expression should be applied my ($secure) = $unsecure =~ / (\d+) /x or die q{we couldn't find number in $unsecure}; 来源： https:/

Spring JSON tainting response from JacksonMessageConverter

由 馋奶兔 提交于 2019-12-08 09:03:17
问题 I have a JacksonMessageConverter in my Spring application for returning JSON response. But before the JSON is returned, I would like to taint the JSON as given in Ajax Security - Preventing JSON hijacking. Is it possible to do so when using a message converter? Update Am looking for a solution similar to this spring prefixjson with responsebody but I already have the configuration set up correctly. PFB <bean id="jacksonMessageConverter" class="org.springframework.http.converter.json

Increase security by creating un-eval-uatable (“unparsable cruft”) JSON?

由 僤鯓⒐⒋嵵緔 提交于 2019-12-06 06:57:19
问题 we are looking at using the unparseable curft approach to our json as an extra level of security. In looking at the approaches, I've come across google's while(1); and facebook's for(;;) ; and then another mention of {}&& I've seen comments surrounding the while(1); that say the 1 being numeric can get clobbered, so my approach was going to be the for(;;); . Then I came across the {}&& , which renders the json as invalid yet it can still be parsed/eval'ed. See this article for reference: http

Insecure $ENV{ENV} while running with -T switch

由 青春壹個敷衍的年華 提交于 2019-12-05 19:51:28
When I try the last example from perlfaq5: How-do-I-count-the-number-of-lines-in-a-file? I get an error-message. What should I do to get the script working? #!/usr/local/bin/perl -T use warnings; use 5.012; $ENV{PATH} = undef; my $filename = 'perl2.pl'; if( $filename =~ /^([0-9a-z_.]+)\z/ ) { my $lines = `/usr/bin/wc -l $1`; print $lines; } Output: Insecure $ENV{ENV} while running with -T switch at ./perl1.pl line 10. 2nd Edition of Answer The perldoc perlsec manual describes taint mode (there is also perldoc Taint for a module related to Taint mode). In part, it illustrates: $path = $ENV{

What are tainted objects, and when should we untaint them?

由 試著忘記壹切 提交于 2019-12-04 08:25:10
问题 When do Ruby objects need to be made tainted and when should we untaint them? How does the concept of tainted object make a Ruby script run in safe mode? Can anyone elaborate on this to make the concept clear with some code snippets? 回答1: What is Tainted? User input is tainted, by definition. For example: string = gets string.tainted? # => true You can also manually taint an object. string = 'Not yet tainted.' string.tainted? # => false (string = 'Explicitly taint me!').taint string.tainted?

How do I set the taint mode in a perl script with a '#!/usr/bin/env perl'- shebang?

由 我与影子孤独终老i 提交于 2019-12-03 12:18:04
问题 how do I set the taint mode in a perl script with a #!/usr/bin/env perl shebang? 回答1: You can pass the PERL5OPT environment variable on the shebang line: #!/usr/bin/env PERL5OPT=-T perl This seems all rather backwards to me. Another option, is to re-execute the script under taint mode if you detect it's not on: #!/usr/bin/env perl warn 'Taint mode is '.(${^TAINT} ? 'on' : 'off'); # For debugging exec($^X,'-T',$0,@ARGV) unless ${^TAINT}; # do stuff under taint mode here Obviously, this is a

What are tainted objects, and when should we untaint them?

由 坚强是说给别人听的谎言 提交于 2019-12-02 23:03:26
When do Ruby objects need to be made tainted and when should we untaint them? How does the concept of tainted object make a Ruby script run in safe mode? Can anyone elaborate on this to make the concept clear with some code snippets? What is Tainted? User input is tainted, by definition. For example: string = gets string.tainted? # => true You can also manually taint an object. string = 'Not yet tainted.' string.tainted? # => false (string = 'Explicitly taint me!').taint string.tainted? # => true Why Untaint an Object? Generally, you would untaint an object only after you validate and/or

Is Perl's taint mode useful?

由 本小妞迷上赌 提交于 2019-11-30 10:56:39
perl -T Do you use it? Does it help you finding security holes in your Perl scripts? More than that :) it stops your security issues before they become one. It is not a security silver bullet of course... we used to use it (a few years back when I was involved in Perl projects) in any script that was exposed externally (i.e. any mod_perl app) and we found it very useful and made it our policy. It does a few checks and it is handy.. (anything makes things automated) Perl Security - perlsec recommends it strongly too: This flag [Taint mode] is strongly suggested for server programs and any

Is Perl's taint mode useful?

由 雨燕双飞 提交于 2019-11-29 16:23:06
问题 perl -T Do you use it? Does it help you finding security holes in your Perl scripts? 回答1: More than that :) it stops your security issues before they become one. It is not a security silver bullet of course... we used to use it (a few years back when I was involved in Perl projects) in any script that was exposed externally (i.e. any mod_perl app) and we found it very useful and made it our policy. It does a few checks and it is handy.. (anything makes things automated) Perl Security -
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