This vulnerability was assigned CVE-2017-11317. In May 2020, Kroll began observing an increase in compromises related to vulnerabilities in Telerik user interface (UI) software, a spinoff of Telerik’s web software tools which provides navigation controls. Location Delivering actionable recommendations using the best technology and expertise available. Overview The Telerik Component present in older versions of DNN has a series of known vulnerabilities: CVE-2017-11317, CVE-2017-11357, CVE-2014 … The vulnerability, which is outlined in CVE-2019-18935, involves a .NET deserialization vulnerability in the software that allows for remote code execution. Environmental the facts presented on these sites. Please address comments about this page to nvd@nist.gov. Telerik UI ASP.NET AJAX RadAsyncUpload Deserialization Posted Oct 20, 2020 Authored by Spencer McIntyre, Oleksandr Mirosh, Markus Wulftange, Alvaro Munoz, Paul Taylor, Caleb Gross, straightblast | Site metasploit.com. In early May, after several days of review, the client found a malicious script that captured cardholder data (more specifically it captured content of the visitor’s typed in or auto-filled check out form input) upon checkout. Fixed in version 5.0.20204. Kroll is headquartered in New York with offices around the world. OVERVIEW: A vulnerability in Telerik UI for ASP.NET could allow for arbitrary code execution. Information Quality Standards. SBGuard Anti-Ransomware is a free software to protect PC from all known ransomware like TeslaCrypt, CryptoLocker SBGuard Anti-Ransomware, Protect from All Known Ransomware. We have provided these links to other web sites because they If you have either of the handlers below registered (make sure to look for the type attribute), you are using the Telerik UI for ASP.NET AJAX (Telerik.Web.UI.dll) suite and your app might be vulnerable to CVE-2017-11317 and/or CVE-2019-18935, and you should keep reading. Progress Telerik UI for ASP.NET AJAX through 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. Kroll’s analysis of identified files revealed a range of capabilities across different impacted systems from code injection and remote access to credential harvesting. This Metasploit module exploits the .NET deserialization vulnerability within the RadAsyncUpload (RAU) component of Telerik UI ASP.NET AJAX that is identified as CVE … As of R1 2017, the Encrypt-then-MAC approach is implemented, in order to improve the integrity of the encrypted temporary and target folders. July 16, 2020 Security Blue Mockingbird, security, Telerik, Telerik Web UI Takeshi Eto Over the past few months, we have seen a large number of hacking attempts against our customer sites using an old Telerik component vulnerability. Are we missing a CPE here? Denotes Vulnerable Software ASP.NET is an open-source server-side web-application framework designed for web development to produce dynamic web pages. Telerik Fiddler through 5.0.20202.18177 allows attackers to execute arbitrary programs via a hostname with a trailing space character, followed by --utility-and-browser --utility-cmd-prefix= and the pathname of a locally installed program. In another investigation, a Kroll client started receiving complaints from customers whose banks informed them that fraudulent charges were originating from the client organization. New York New York 10055, Phone The Telerik vulnerability was used to upload malicious files and run malicious binaries allowing the escalation of privileges in an Internet Information Services account from an internet accessible server. | USA.gov, CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, Information Search for the version of Telerik if unknown. As mentioned in several of our previous articles, deploy multi-factor authentication for all internet-accessible remote access services, Ensure adequate Windows event logging and forwarding and system monitoring is in place. Sorry, something went wrong :( Please try again later! Expert computer forensic assistance at any stage of a digital investigation or litigation. The most often targeted clients observed by Kroll within the sample timeframe were in the healthcare and government sectors (Figure 1). By exploiting CVE-2019-18935, the group was able to install a web shell in the compromised server and then used a privilege escalation tool to gain accesses needed to modify server settings and maintain persistence,” the report stated. 6 CVE-2015-2264 +Priv 2015-03-12: 2015-03-13 +1 212 593 1000. By selecting these links, you will be leaving NIST webspace. “The actor has been identified leveraging a number of initial access vectors, with the most prevalent being the exploitation of public-facing infrastructure — primarily through the use of remote code execution vulnerabilities in unpatched versions of Telerik UI,” the report stated. Telerik provided fixes to Sitecore as custom updates for assembly versions that are compatible with Sitecore CMS/XP. USGCB, US-CERT Security Operations Center Email: soc@us-cert.gov Phone: The RadUploadHandler class in RadUpload for Silverlight expects a web request that provides the file location of the uploading file along with a few other parameters. Copyright © 2020 Kroll All Rights Reserved. In the deserialization attack, rather than submitting the expected Telerik.Web.UI.AsyncUploadConfiguration type with rauPostData, an attacker can submit a file upload POST request specifying the type as a remote code execution gadget instead. Please let us know, Announcement and The vulnerability is brought about by the insecure deserialization of JSON objects, which can lead to remote code execution on the host. Sign up to receive periodic news, reports, and invitations from Kroll. This can be accomplished using tools such as grep, PowerGrep or the “, Look for connections to the following URL within the web server logs: /Telerik.Web.UI.WebResource.axd?type=rau. One of our experts will contact you shortly. Further, NIST does not The Telerik.AsyncUpload.ConfigurationEncryptionKey is available as of Q3 2012 SP1 (version 2012.3.1205).. You can use the IIS MachineKey Validation Key generator to get the encryption keys (make sure to avoid the ,IsolateApps portion).. ConfigurationHashKey. Please let us know. 800-53 Controls SCAP Directory Traversal (Workflow) vulnerability Directory Traversal (File upload) vulnerability XSS vulnerabilities in the Backend Administration 12.2 12.2.7230 Not Vulnerable 12.1 12.1.7131 Not Vulnerable 12.0 12.0.7037 Not Vulnerable 11.2 11.2.6937 Not Vulnerable 11.1 Statement | NIST Privacy Program | No 02/05/2020 05/12/2020 - UPDATED SUBJECT: A Vulnerability in Telerik UI for ASP.NET Could Allow for Arbitrary Code Execution OVERVIEW: A vulnerability in Telerik UI for ASP.NET could allow for arbitrary code execution. Our privacy policy describes how your data will be processed. Anthony Knutson, Senior Vice President in Kroll’s Cyber Risk practice, provided more details: “Specifically in the webshells, our engineers were able to recreate what the threat actor would see when traversing specific pages and demonstrate how these webshell files could go undetected by requiring the specific user-agent string we mentioned. In May 2020, Kroll began observing an increase in compromises related to vulnerabilities in Telerik user interface (UI) software, a spinoff of Telerik’s web software tools which provides navigation controls.            Investigating those strings and activity tied to their interactions with internet facing servers revealed suspiciously uploaded files, ranging from .aspx, .js, to .zip content. Devon Ackerman, Managing Director in Kroll’s Cyber Risk practice,  added, “In Kroll’s estimation, for the investigations where actor groups have leveraged the Telerik vulnerability to push in cryptocurrency mining operations, the activity was noisy and burdensome to the impacted systems. Links to Telerik UI security vulnerablities CVE-2014-2217, CVE-2017-11317 and CVE-2019-18935 were added to References on 12-May-20. The Telerik UI CVE-2019-18935 vulnerability, per reports, has been widely let known as the one that is employed to embed web shells on servers. There may be other web The Kroll team proposed conducting an investigation into unauthorized access of data contained in or entered into the client's website and to review systems for possible acquisition of same. Fear Act Policy, Disclaimer Please try again later! may have information that would be of interest to you. With elevated privileges, the actor(s) retrieved cached credentials from system memory using tools such as Mimikatz which allowed further access the network, lateral movement between servers and eventual staging and deployment of the XMRig cryptocurrency mining software. The state-based actor behind an attack on Australian public and private sector organisations used unpatched vulnerabilities in Telerik UI, … Kroll observed more than a dozen cases in a short span of time in which attackers targeted the Telerik vulnerability to deploy remote access tools or credential harvesting software and then gain remote access to the client’s network. The Australian Cyber Security Center (ACSC) also identified the Telerik UI vulnerability CVE-2019-18935 as one of the most exploited vulnerabilities to target Australian organizations in 2019 and 2020, in another security advisory released last week. Sitefinity 13.0.7300 is using Telerik.Web.UI version 2020.1.114 which is not vulnerable against arbitrary file upload. these sites. Telerik Fiddler through 5.0.20202.18177 allows attackers to execute arbitrary programs via a hostname with a trailing space character, followed by --utility-and-browser --utility-cmd-prefix= and the pathname of a locally installed program. Integrity Summary | NIST Solution We have addressed the vulnerability and the Progress MOVEit Support team strongly recommends performing an upgrade to the fixed version listed in the table below. The victim must interactively choose the Open On Browser option. Versions R2 2017 (2017.2.503) and prior are vulnerable. Kroll was able to pinpoint attacks by examining available forensic evidence and most critically, web server access logs, looking specifically for unique user-agent strings and IP addresses previously flagged by our threat intelligence team. This issue exists due to a deserialization issue with.NET JavaScriptSerializer through RadAsyncUpload, which can lead to the execution of arbitrary code on the server in the context of the w3wp.exe process. I would like to receive periodic news, reports, and invitations from Kroll, a Duff & Phelps. Kroll responded to one example incident in which an e-commerce client had a downstream customer report instances of fraud after using a credit card on their website. Without that user-agent string, the page would load as an HTTP 404 error, and the webshell would not activate.”, Devon Ackerman, Managing Director and Head of North America Incident Response, added: “Like most webshells leveraged by attackers, these shells provided the unauthorized actors with abilities ranging from direct SQL database access, to file read/write capabilities, to operating system-level remote command prompt and PowerShell access.”. No The Cyber Risk practice of Kroll, a division of Duff & Phelps, is proud to sponsor Connect 2020, VMware Carbon Black's cyber security conference in Chicago. According to recent reporting by the New Jersey Cybersecurity and Communications Integration Cell (NJCCIC), a group dubbed Blue Mockingbird recently infected thousands of computer systems via the Telerik vulnerability. Notice | Accessibility 55 East 52nd Street Webmaster | Contact Us Telerik Vulnerability (CVE-2019-18935) Creates Surge in Web Compromise and Cryptomining Attacks - The Monitor, Issue 14, /en/insights/publications/cyber/monitor/telerik-vulnerability-surge-web-compromise-cryptomining-attacks, /-/media/kroll/images/publications/featured-images/2019/telerik-exploits.jpg, Malware and Advanced Persistent Threat Detection. Telerik UI components are quite popular with ASP.NET developers and your ASP.NET web applications may be vulnerable if the underlying components haven't been updated or patched. ----> For versions 10.2 to until 12.2 Those versions are using patched Telerik.Web.UI versions, but require the use of unique encryption keys in the web.config file: inferences should be drawn on account of other sites being CWE-326: Inadequate Encryption Strength - CVE-2017-9248. The version of Telerik UI for ASP.NET AJAX installed on the remote Windows host is affected by multiple vulnerabilities in Telerik.Web.UI.dll. The NJCCIC recommends administrators ensure the Telerik UI (user interface) component used in any ASP.NET apps is patched against the CVE-2019-18935 vulnerability. | Our Other Offices, NVD Dashboard News Email List FAQ Visualizations, Search & Statistics Full Listing Categories Data Feeds Vendor CommentsCVMAP, CVSS V3 A confirmation email has been sent to you. Policy | Security Sorry, something went wrong. Wednesday, 04 March, 2020 The Australian Cyber Security Centre (ACSC) has warned of a new remote code execution attack campaign involving “sophisticated actors” targeting unpatched versions of the Telerik user interface for the AJAX extensions of the ASP.NET web application framework. CVE-2019-18935 . ASP.NET is an open-source server-side web-application framework designed for web development to produce dynamic web pages. Policy Statement | Cookie Apache released security advisories regarding the vulnerabilities found in Apache Struts versions 2.0.0 - 2.5.20. An issue was discovered in Progress Telerik UI for Silverlight before 2020.1.330. Calculator CVSS The Monitor also includes an analysis of the month’s most popular threat types investigated by our cyber experts. The client assessed that the Telerik vulnerability had been exploited to introduce the malicious script. Security Vulnerability Bulletin: Telerik Web UI Controls by Takeshi Eto July 17th, 2020 We posted this content over on our DiscountASP.NET Blog but we port it over here because we want all our customers to know about a recent rise of hacking activities associated with the Telerik Web UI Control. A couple weeks before the attack, one of the client’s IT vendors advised that they had identified the Telerik vulnerability within their vendor-managed database, which allowed code to be remotely executed in an unauthorized manner. Statement | Privacy This is a potential security issue, you are being redirected to https://nvd.nist.gov. They removed it, but by that point, the script had impacted a significant number of cards due to the client’s daily e-commerce site traffic. referenced, or not, from this page. CISA, Privacy The conference will address the future of endpoint security. Jobs Report Shows Gains but Vulnerability to New Virus Surge U.S. payrolls grew by 638,000 in October and unemployment fell to 6.9%, but lockdowns could … Validated Tools SCAP Information Quality Standards, Business CVE-2019-18935 is a vulnerability discovered in 2019 by researchers at Bishop Fox, in the RadAsyncUpload file handler in Telerik UI for ASP.net AJAX, a commonly-used suite of web application UI components. 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