ECS Connection Manager 7.2.54.1 Release Notes
ECS Connection Manager Version 7.2.54.1 is a bug-fix release made available in June 2021. Please read the sections below before installing or upgrading to this GA release.
Contents
Supported Models for Upgrade
Upgrade Patch XML File Verification Notes
Downgrading to Earlier Versions
Issues Resolved
Existing Known Issues
Before You Upgrade (READ ME FIRST)
Please pay special attention to the issues below before you begin an upgrade to this release.
Generation of 4096-bit DHE Key
During an upgrade to this version from a version prior to 7.2.53.0, a new 4096-bit DHE key is generated. On ECS-H1 Connection Managers, this can lead to significant CPU and memory consumption that could impact regular virtual service traffic. So, Kemp strongly recommends that this update be performed in a maintenance interval.
Best Practices Cipher Set
In 7.2.52.0, the BestPractices cipher set was updated. If you are upgrading from a version prior to 7.2.52.0, this change is effective immediately after upgrade to this release. This change was made to improve ECS Connection Manager security and conform to the latest industry best practices.
If you depend on any of the cipher sets being removed from the BestPractices set, then before you upgrade you must create a custom cipher set that contains these ciphers and assign this new custom cipher set to the Virtual Services that are currently using the BestPractices cipher set. After this is done, you can upgrade to this release and your services will continue to use the old ciphers. If you do not, then after upgrade any clients that depend on these ciphers being available will no longer be able to connect. |
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It is recommended, however, that you migrate your services as soon as possible to use the new BestPractices cipher set. For more information on the cipher suites removed from the set, please see the ECS Connection Manager 7.2.52.0 Release Notes.
Supported Models for Upgrade
This release of ECS Connection Manager is supported on the Hardware and Virtual models shown in the table below.
| Supported Virtual Models | Supported Hardware Models | |
|
ECS Connection Manager VM1 ECS Connection Manager VM2 |
ECS-H1 ECS-H2 ECS-H3 ECS-H3M ECS-H3-25G ECS-H3-40G ECS-H3-100G |
|
Upgrade Patch XML File Verification Notes
By default, verification of the digital signature on upgrade images is required in 7.2.50.0 and above. See the Update Verification Options setting under System Administration > Miscellaneous Options > WUI Settings. If the unit you are upgrading is set to require validation, you'll need to supply the XML Verification File supplied with this release.
Note that:
- In previous releases, two verification files were provided: one for pre-7.2.51 systems and one for later systems. This restriction has been removed with with 7.2.53.0; if upgrading from firmware 7.2.51.0 and above you can use the XML file provided with this release. If upgrading from any other firmware version please see the relevant release notes for that firmware version.
Downgrading to Earlier Versions
Downgrading a ECS Connection Manager running 7.2.54.0 to 7.2.51.0 (or a later release) can be performed using any desired Update Verification Options setting.
Downgrading to 7.2.50.0 or a previous release can only be done when the Update Verification Options setting is set to Optional or Legacy. When performing the downgrade, do not specify an XML file. If you want to verify the digital signature on the image before downgrading, you can do so using a manual process documented on the support website.
Issues Resolved
| PD-18358 | Virtual Service Configuration: Fixed an issue that caused the Show Headers button to work incorrectly when SSL offload is enabled. |
| PD-18300 | ECS Connection Manager Add-on & Patch: Addressed usability issues in the names chosen for files in the downloaded archive. |
| PD-18280 | WAF Custom Rules: In the previous release, only alphanumeric characters and the underbar (_) character were allowed in custom rule names. With this release, the period (.) and dash (-) characters are also supported. |
| PD-18262 | IP Location Database: Addressed issues with country codes that caused repeated WAF errors to appear, such as: "wafd: Missing country code". |
| PD-18201 | Inspect HTML POST Request Bodies (WAF): With this WAF option enabled on the previous release, only files less than 128KB can be uploaded to a Virtual Service. enabled VS. Now, filse up to 1MB can be uploaded. |
| PD-18164 | WAF 1.5: Fixed issues causing segmentation faults when using custom rules. |
| PD-18163 | WAF 1.5: Fixed issues that caused WAF Misconfigured to appear for a Virtual Service that has been configured with WAF rules. |
Existing Known Issues
The following issues appeared in the Release Notes for the previous release of ECS Connection Manager.
| PD-18099 | Client Certificates: Authentication may be denied if multiple "Other names" are present in the client certificate. |
| PD-18028 | Client Certificates: Under certain circumstances, a user with a valid certificate is incorrectly denied access; adding the email address of the user to the CN field causes login to succeed. |
| PD-18021 | Content Rule UI: Display is incorrect when the 'Ignore case' option is enabled. |
| PD-17934 | Client Limiting: An internal error can cause client limiting to be incorrectly applied; e.g., log messages may indicate that limiting is being applied, removed, and applied again within a period of time that is shorter than the period set by the user. |
| PD-17933 | ESP: When ESP sends data, it sets the Set-Cookie header without a samesite parameter, which causes some browsers to interpret this as "samesite=lax" and possibly refuse to deliver content. |
| PD-17927 | LDAP UI Access: Under certain circumstances, a user that has no LDAP credentials can gain access to the UI. |
| PD-17867 | Historical Graphs: Under certain circumstances, graphs for VLANs and Bonded Interfaces may no longer appear in the UI after upgrade to 7.2.53. |
| PD-16140 | GEO: TXT records are blank after 1024 IP addresses are added to an FQDN. |
| PD-15872 | LDAP/Syslog: StartTLS is not working when the Server Certificate Validation flag is enabled. |
| PD-15633 | GEO: If you add a Zone Name to GEO after you have created working FQDNs, GEO may no longer respond to queries for one or more of the FQDN safter the Zone Name is added. The workaround is to remove and then re-add the FQDNs that are no longer working. |
| PD-15475 | VS Redirects: If you attempt to upload a new redirect error HTML file to a Virtual Service with Not Available Redirection Handling enabled while traffic is currently being redirected, then traffic to the VS is dropped. Click the Error Message radio button in the UI and the VS begins accepting connections again. |
| PD-15354 | SSO Timeout: In 7.2.51.0, a fix was introduced for issues that caused an SSO client to not be properly logged out when the configured session timeout expires. It has been observed that while sessions do timeout, they are not always closed immediately upon the expiry of the timer; it can take close to a minute longer for the session to actually be closed. |
| PD-15294 | ESP Verify Bearer Header: ECS Connection Manager does not return an error when an encrypted token is received and there is no SSL certificate assigned to the VS to decrypt the token. |
| PD-15172 | ESP Verify Bearer Header: Validation is not working when "Allowed Virtual Hosts" and "Allowed Virtual Directories" are blank on the Virtual Service. |
| PD-14943 | Single Sign On: When Form Based Authentication is enabled on the server side, it is possible that after filling out correct credentials and submitting the login form, the form will be presented again; once the second login form is submitted with correct credentials, the login succeeds. |
| PD-12838 | ESP / SSO: The ESP Permitted Group SID(s) setting is not working as expected when configured on a SubVS. |
| PD-12616 | WAF / Compression: With Web Application Firewall (WAF) enabled, compressed files are incorrectly decompressed. As a workaround, ensure compression is enabled in VS Advanced Properties by selecting the Enable Compression option. |
| PD-12354 PD-10466 |
Hardware Support: The ECS Connection Manager models do not support the following SFP+ modules: LM-SFP-SX (SFP+ SX Transceiver 1000BASE-SX 850nm, 550m over MMF), LM-SFP-LX (SFP+ LX Transceiver 1000BASE-LX 1310nm, 10KM over SMF). |
| PD-12237 | HA / NTP: Configuring NTP for the first time after the system is running in High Availability (HA) mode and when the current time on the machines is not correct, may cause the systems to both go into the Master state. |
| PD-12147 | ESP / RADIUS: In a ECS Connection Manager configuration with ESP and Radius server-side authentication enabled, sessions may fail to be established. |
| PD-11861 | RADIUS / IPv6: IPv6 is not supported by the current RADIUS implementation in the ECS Connection Manager for both WUI Authorization and ESP Authentication. |
| PD-11044 | SharePoint Virtual Services: A second authentication prompt is presented when a file is uploaded to SharePoint with the following configuration: WAF is configured with Process Responses enabled on the main Virtual Service and KCD is enabled on the SubVS level for server-side authentication. |
| PD-10586 | GEO: If a GEO FQDN is configured with All Available as the Selection Criteria, IP addresses are returned even if the cluster is disabled. |
| PD-10490 | Content Rules: The vsremovewafrule RESTful API command does not allow multiple rules to be removed. |
| PD-10474 | Intrusion Detection: A SNORT rule is triggering a false positive in certain scenarios. |
| PD-10193 | Exchange 2010 Virtual Services: A WAF, ESP, and KCD configuration with Microsoft Exchange 2010 is not supported. |
| PD-10188 | Browser Support: (Safari) When adding a Real Server to a Virtual Service or SubVS using the Safari browser, the list of available Real Servers is not available. |
| PD-10136 | Clustering: In a ECS Connection Manager cluster configuration, a new node can be added with the same IP address as an existing node. |
| PD-9816 PD-9476 |
WAF: There is an API command to list individual rules in a ruleset, but there is no command to list the available rulesets themselves. |
| PD-9765 | GEO: DNS TCP requests from unknown sources are not supported. |
| PD-9507 | Networking: Unable to add an SDN controller using the RESTful API/WUI in a specific scenario. |
| PD-9375 | SharePoint Virtual Services: Microsoft Office files in SharePoint do not work in Firefox and Chrome when using SAML authentication. |