NB 7507 Release Notes

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It was getting to large to edit and load in web browser. The admin account will count against this but the ham, spam, and wiki ones will not. Accounts or entries listed under: AliasesDistribution Lists, Resources should not. See below for bug about Resources though. Do you have any user's with the variable zimbraMailCanonicalAddress set using a domain that is not within your Zimbra infrastructure?

The root cause was actually the ldap lookups occurring in the background those against the zimbraMailCanonicalAddress domain. Administrators might or might not catch this events being tied to calendars or ics data. Here's what I've gather from other cases so far about the issue, there's about 5 of them I've seen. None are resolved at this time July 23, 08so use with caution.

Check a the thread dump if the documentation instructions on using the netbackup emergency engineering binary eeb installer is getting stuck during an invite email delivery documentation instructions on using the netbackup emergency engineering binary eeb installer a conference room.

You can guess the calendar object based on the emails in the conference room's Inbox. If these are set to 0, the sysadmin enabled documentation instructions on using the netbackup emergency engineering binary eeb installer expansion on purpose. If these are missing, it's an upgrade problem.

The code will default the values to 0 and thus infinite loop. Set them to the above values to avoid long expansions. If these are set to 0, please set to the above values to avoid long exp. Also you are might hitting bug http: Then try to flush the queue. Please check the Support Portal page for the most recent issues related to newly released ZCS versions.

That is were "issues" are generally posted when we discover "new" situations arising from newly released versions. I believe this is new for version 5. Until you adjust the case, the installer script will not continue.

Please don't do this, use upper case in your hosts file Unix is not Windows. For new installations of ZCS 6. Bug When you upgrade to 6. Enabling anonymous binds is not recommended as it may expose data not intended for anonymous access. Replace the details below as followed: The other variables should state port if your setup for ldaps [ref: And now the search test from the non-zcs linux host [I provide a couple lines of the output in the example below].

This will delete the account from ldap and not from the db mysql. It also retains the mail store and index data:. Proceeded with some of the steps taken from this reference: When I documentation instructions on using the netbackup emergency engineering binary eeb installer to remove the alias that matches the primary account with zmprov or to delete the Documentation instructions on using the netbackup emergency engineering binary eeb installer in the web console it fails.

Also, whenever I rename the account, the alias gets renamed with it. Even when using the zimbraID to rename the account. Note, customer also gave me feedback that they ended up seeing this as a result of they way their load-balancers were operating.

But if you find the need to change it, here's the steps. Note you need to do all three of these or things will break. Once you've run those commands, you will need to restart ZCS:. If you'd like to use a port other thansubstitute that port for and use the same process. Make sure you are using the right passwords. If the ldap replica can't authenticate to the master LDAP server it will not be able to pull down the ldap configurations it needs - one of which is the license data.

If this has happened and you want to correct without a reinstall. Please use the precise number of hash marks shown.

These log files should be written to backup media to provide for recovery in the case of catastrophic failure which also requires a snapshot of the database filesbut they may then be deleted from the system to reclaim disk space.

It certainly won't work with ZCS 5. We would advise customers to avoid using it until it stabilizes, though they need to understand it's still going to be unsupported by us. Where one places "overlay rwm" in the slapd. RWM has problems in the order in which it is loaded.

Truthfully, I'm not sure of the reasoning behind the command but this might be useful in trouble shooting connector issues with GAL sync issues. This is just some notes I made for a specific case where there were multiple ZCS installs across sister companies. They didn't have a multi-server install and weren't sharing LDAP data therefore.

Zimbra supports the ability to use an external authentication source, but we don't support the external authentication servers setup and configuration. You can also use the forums to see if others have worked out some good instructions when working with your particular external authentication server.

We suggest the following. CAS is an authentication system originally created by Yale University to provide a trusted way for an application to authenticate a user. Please see ManagingDomains Relaying. There is a way to rewrite the incoming mail, but it's not a standard Zimbra feature. You can implement it as a configuration change in Postfix. Here's what you do:. This will cause postfix to map any incoming mail with a recipient of ' alias.

Generally used for Managing Legal Requests for Information. Also, there are some default postfix parameters set to control sending a message to x amount recipients. Besides using external mailing list software, Mailman or Sympahere's some other topical items in regards to restrictions.

This will give some stats on your mail activity. Note, there are some issue with this script double reporting mail counts etc, but it's useful to identify the top 50 for activity. You can also look at the documentation instructions on using the netbackup emergency engineering binary eeb installer of [ qshape ] - the default is the active queue.

For more on qshape, see [ Postfix Qshape Readme ]. You can download them from http: It's a fairly simply install, download and then extract - cd into extracted directory and as root type:. Here's an example of the output. Note - First, look at the options each command has using the -h output. One way to note accounts that are actively logging in vs.

A fast way to see who is doing a lot of authentications, which normally happens when a spammer has compromised an account with a weak password, is to do:. To be alerted of a compromised account and have it lock automatically see below. Slightly modified from this reference: But note - if you do this from the ZCS server or a server that is within the ip range or has it's specific ip listed in the mynetworks, you will not get this authentication requirement.

Do not use predictable DL names. Instead of using everyone company. Another option is to use a non-routing domain - company. You'll want to configure your main domain to be able to query the GAL of this domain. The default behavior is to allow SMTP connections from any client. This is discussed under Spam Controls on the Postfix site. Details can be found on the mail.

This is most likely related to the SPF records for your domain and what the header content of the sending email states as it's Mail From. For example, this is from the header of an email that was "received":.

To see what this check was done against, do the following below. I'll trim the output and adjust the information used to protect the innocent. Also, notice how a DNS "alias" might cause an issue here? Using non-zimbra MTA's can cause some options in zimbra to not function anymore - since it no longer has zimbra's mta services available. Mail forwarding might no longer work depending on the configuration you setup regarding the use of your external mta's. When this happens you'll most likely want to disable the option for users to set a mail forwarding address in their preferences.

The admin gui option above only adjusts the zimbraFeatureMailForwardingEnabled variable:. These options are also shown in the admin console and can be configured there. It's defaulted value is 'localhost' - at least on a single ZCS configuration. ConnectException Connection refused " then you might need to adjust this variable. First query it, it's most likely set to localhost.

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Click here to get in touch or call us on Compatible mobile devices can access e-mail, calendar, contact, and task data in addition to documents stored on Windows SharePoint Services sites and Windows file shares. Information synchronized with the mobile devices is retained and can be accessed offline. When the system reveals a username exists either due to misconfiguration or a design decision a username enumeration issue exists. This is often identified in authentication interfaces, registration forms, and forgotten password functionality.

The information disclosed by the system can be used to determines a list of users which can then be used in further attacks such as a bruteforce — since the username is known to be correct, only the password needs to be guessed, greatly increasing the chances of successfully compromising an account. During the assessment of a 3rd party product which utilises ActiveSync, it was noted that the there was a clear response difference between a valid and invalid usernames submitted in the HTTP Basic Authentication Header.

Further investigation revealed that the issue was in fact in Office rather than the 3rd party product which was simply acting as a proxy. In order to elicit a response from ActiveSync a number of parameters and headers are required, this is described in more detail here: The username enumeration issue exists in the differing response to invalid vs valid usernames submitted in the Authorization header.

This request header value consists of the username and password concatenated with a colon: The request below contains the following Base64 encoded credentials in the Authorization header: By iterating through a list of potential usernames and observing the response, it is possible to enumerate a list of valid users which can then be targeted for further attacks.

These attacks may be directly against the authentication, i. It should be noted that this issues requires an authentication attempt and is therefore likely to appear in logs, and has a risk of locking out accounts. However it is also possible that a valid username and password combination will be identified, in which case the response is different depending on if 2FA is enabled or not.

It should be noted that only users with a valid mailbox are considered to be valid users in this context, therefore a domain account may exist which this enumeration would identify as invalid. It was found that only Office was affected.

In order to automate exploitation of this issue Oliver wrote a simple multi threaded python script. It is available here: Valid and invalid usernames are logged along with valid username and password combinations in case you get lucky.

Response from Microsoft note only relevant section of email included below. Upon investigation we have determined that these do not meet the bar for security servicing. In general, username enumeration does not meet the bar as there are many ways to do this and on its own it does not allow an attacker access or control in any way, as the attacker would still need to bypass login. Emailed Microsoft stating intention to disclose in a blog post unless they had any serious objections.

Claranet, a leading managed IT services provider, has announced the acquisition of Sec-1 to boost IT security across the group. The acquisition will also provide our customers and employees with many new opportunities, as Claranet offers a wide range of additional services that complement our areas of expertise. We also see opportunities over time to further enhance and develop the security services we currently offer. Malwaretech registered the sandbox detection domain essentially shutting down any further spread overnight; but expect a new version to be released soon.

Microsoft have issued an unusual — out of band — update for unsupported operating systems for ms for xp, 8, etc. Get patching immediately before a new version is released. As far as we currently understand this new strain incorporates active exploitation of the vulnerability patched in the MS update released by Microsoft in March. This is novel behaviour for cryptomalware and we expect this to have widespread effects.

We strongly advise you to ensure all internal systems especially critical domain controllers, fileservers and exchange servers have the MS patch applied as soon as possible. Because of the nature of malware propagation you should ensure that any back-ups are held offline; if backups are offline they cannot be encrypted in the event of your network being hit.

Further updates will be released as we investigate the nature of this attack but do ensure you follow major news feeds on twitter, LinkedIn etc…. Unauthenticated Remote Command Execution Description: Command injection attacks are possible when an application passes unsafe user supplied data forms, cookies, HTTP headers etc. In this attack, the attacker-supplied operating system commands are usually executed with the privileges of the vulnerable application.

Command injection attacks are possible largely due to insufficient input validation. As this vulnerability allows an unauthenticated attacker to gain root level privileges on the affected device, the effects could include: Exploit Example A fully working exploit has been created for this issue for use within the Metasploit Framework.

An example of its use is shown below. This must be an address on the local machine or 0. The Veritas NetBackup Appliance is vulnerable to an unauthenticated OS Command Injection Vulnerability via arguments passed to backend perl scripts when performing license verification. Since it is a blind os command injection vulnerability, there is no output for the executed command when using the cmd generic payload. A ping command against a controlled system could be used for testing purposes.

The exploit uses the wget client from the device to convert the command injection into an arbitrary payload execution. Vendor Response As of version 2.

Veritas are aware that the issue is present in the current version of the product. A fix has been scheduled for the NetBackup Appliances v3. Sec-1 would like to thank Veritas for their very professional and prompt responses in dealing with this matter. Sec-1 Ltd partnered with AppCheck. One of the key findings from the research shows that vulnerabilities introduced through an insecure postMessage implementation are frequently missed by security scanners and consultants performing manual review.

This paper aims to provide an overview of the most common postMessage security flaws and introduce a methodology and toolset for quickly identifying vulnerabilities during the course of a Black-box security assessment.

The following video demonstrates a postMessage flaw identified within the Apple iCloud service. A full analysis of the flaw can be found within the Hunting postMessage Vulnerabilities whitepaper. Username enumeration is when an attacker can determine valid users in a system.

The vulnerability During the assessment of a 3rd party product which utilises ActiveSync, it was noted that the there was a clear response difference between a valid and invalid usernames submitted in the HTTP Basic Authentication Header.

Wed, 14 Jun Wed, 28 Jun Fri, 07 Jul Mon, 24 Jul My continuing mission to replace myself with a small script In order to automate exploitation of this issue Oliver wrote a simple multi threaded python script.

Disclose Timeline 28 June , Details and tool disclosed to the public. Sec-1 is acquired by Claranet to strengthen its future security services Posted on May 31, by dave. Leading MSP moves to enhance skills in penetration testing services to mitigate security breach risks Sec-1 in a strong position to grow as a Claranet Group Company Claranet, a leading managed IT services provider, has announced the acquisition of Sec-1 to boost IT security across the group.

Posted in News Comments Off on Sec-1 is acquired by Claranet to strengthen its future security services. Malwaretech stems Wcry for now Posted on May 13, by dave. Additionally, ensure TCP ports , and are not exposed to the Internet. Further updates will be released as we investigate the nature of this attack but do ensure you follow major news feeds on twitter, LinkedIn etc… Sources: Sec-1 Security Advisory Severity: NetBackup Appliance versions 2.

Matthew Hall Vendor Status: A fix is scheduled for the NetBackup Appliances v3. Matthew Hall Available targets: Cross-Origin communication via postMessage introduces a tainted data source that is difficult to identify using currently available tools. Cross-Site Scripting and Information disclosure vulnerabilities as a result of insecure postMessage code were identified across many Fortune companies and websites listed within the Alexa Top Discussion with members of the development and information security communities show that the vulnerabilities demonstrated within this document are poorly understood.

In many cases postMessage events were not readily identified as a potential source for malicious tainted data. In many cases vulnerable code is introduced via third party libraries and therefore may undermine the security of an otherwise secure application.

Proof of Concept Example: A full analysis of the flaw can be found within the Hunting postMessage Vulnerabilities whitepaper Proof of Concept: