security

问题 I have run my java app against the checkmarx tool for security vulnerability and it is constantly giving an issue - Heap Inspection, for my password field for which I use a character array. It doesnt give any more explanation than just pointing out the declaration of the password field. private char[] passwordLength; Could anyone help me out here, what more can I look for resolving this? 回答1: Heap Inspection is about sensitive information stored in the machine memory unencrypted, so that if

问题 I understand the part of the paper where they trick the CPU to speculatively load the part of the victim memory into the CPU cache. Part I do not understand is how they retrieve it from cache. 回答1: They don't retrieve it directly (out of bounds read bytes are not "retired" by the CPU and cannot be seen by the attacker in the attack). A vector of attack is to do the "retrieval" a bit at a time. After the CPU cache has been prepared (flushing the cache where it has to be), and has been "taught"

问题 I've recently learned that it's possible to inject arrays into PHP GET variables to perform code execution? .php?a[]=asd&a[]=asdasd&b[]=$a That was the example I was given. I have no idea how it works and was wondering if this is even possible? 回答1: PHP will parse the query string, and inject those values in the $_GET super-global array (same for $_POST if this was done in a form using POST, btw) . In your case, the $_GET array will contain this : array 'a' => array 0 => string 'asd' (length

问题 I've recently learned that it's possible to inject arrays into PHP GET variables to perform code execution? .php?a[]=asd&a[]=asdasd&b[]=$a That was the example I was given. I have no idea how it works and was wondering if this is even possible? 回答1: PHP will parse the query string, and inject those values in the $_GET super-global array (same for $_POST if this was done in a form using POST, btw) . In your case, the $_GET array will contain this : array 'a' => array 0 => string 'asd' (length

问题 Goal: Find the most cryptographically secure random string generator. Using Alphabetic, numeric and if possible special characters in the string. I have been reading on here and other places, but I still hear so many different answers/opinions. Can people who are up to date and knowledgeable about security and cryptography chime in here. The following functions will be used to generate a 8 character random password and also generate a 128 character random token. Function 1: /** * Used for

问题 Is it possible to combine authoryzation and authentication by login basic and by oauth2 in one application? My project is based on jhipster project with simple spring security session login, now i need add oauth2 security for mobile app and it's look like it is not possible. Now i have situation when work one of them, oauth2 ok if WebSecurityConfigurerAdapter had bigger order number than ResourceServerConfiguration. That's mean if oauth security filter is first. I read a lot in stackoverflow

问题 I am using this command on my mono VM sudo mozroots --import --sync It appears to be getting the cert from this site. I then try to connect to my ssl site and i get the exception that the cert is invalid. I use firefox and see the cert was issued in 2010. I looked at that file and see the last time its been updated was 2009-05-21 12:50 When using firefox on the same machine i can navigate to the same url i am trying to connect to and i get no ssl issues. (no alert nor asking me to add it to

问题 I'm interested in launching a window in a temporary session, like how UAC prompts appear. There's been some interest in this concept from a few people, so I figured I'd ask here. Essentially what we're going for is an elevated window like the UAC "are you sure you want to <...>" prompts, but with an arbitrary window. The end goal is to prevent window event hooks and all sorts of other issues that might occur during password entry. I've had a quick look at the UAC APIs and a few other places,

问题 I'm interested in launching a window in a temporary session, like how UAC prompts appear. There's been some interest in this concept from a few people, so I figured I'd ask here. Essentially what we're going for is an elevated window like the UAC "are you sure you want to <...>" prompts, but with an arbitrary window. The end goal is to prevent window event hooks and all sorts of other issues that might occur during password entry. I've had a quick look at the UAC APIs and a few other places,

问题 I have a WCF client/service app that relies on secure communication between two machines and I want to use use x509 certificates installed in the certificate store to identify the server and client to each other. I do this by configuring the binding as <security authenticationMode="MutualCertificate"/> . There is only client machine. The server has a certificate issued to server.mydomain.com installed in the Local Computer/Personal store and the client has a certificate issued to client