Headline
Researchers Warn of Unpatched "DogWalk" Microsoft Windows Vulnerability
An unofficial security patch has been made available for a new Windows zero-day vulnerability in the Microsoft Support Diagnostic Tool (MSDT), even as the Follina flaw continues to be exploited in the wild. The issue — referenced as DogWalk — relates to a path traversal flaw that can be exploited to stash a malicious executable file to the Windows Startup folder when a potential target opens a
An unofficial security patch has been made available for a new Windows zero-day vulnerability in the Microsoft Support Diagnostic Tool (MSDT), even as the Follina flaw continues to be exploited in the wild.
The issue — referenced as DogWalk — relates to a path traversal flaw that can be exploited to stash a malicious executable file to the Windows Startup folder when a potential target opens a specially crafted “.diagcab” archive file that contains a diagnostics configuration file.
The idea is that the payload would get executed the next time the victim logs in to the system after a restart. The vulnerability affects all Windows versions, starting from Windows 7 and Server Server 2008 to the latest releases.
DogWalk was originally disclosed by security researcher Imre Rad in January 2020 after Microsoft, having acknowledged the problem, deemed it as not a security issue.
“There are a number of file types that can execute code in such a way but aren’t technically 'executables,’” the tech giant said at the time. “And a number of these are considered unsafe for users to download/receive in email, even ‘.diagcab’ is blocked by default in Outlook on the web and other places.”
While all files downloaded and received via email include a Mark-of-the-Web (MOTW) tag that’s used to determine their origin and trigger an appropriate security response, 0patch’s Mitja Kolsek noted that the MSDT application is not designed to check this flag and hence allows the .diagcab file to be opened without warning.
“Outlook is not the only delivery vehicle: such file is cheerfully downloaded by all major browsers including Microsoft Edge by simply visiting(!) a website, and it only takes a single click (or mis-click) in the browser’s downloads list to have it opened,” Kolsek said.
“No warning is shown in the process, in contrast to downloading and opening any other known file capable of executing [the] attacker’s code.”
The patches and the renewed interest in the zero-day bug follow active exploitation of the “Follina” remote code execution vulnerability by leveraging malware-laced Word documents that abuse the “ms-msdt:” protocol URI scheme.
According to enterprise security firm Proofpoint, the flaw (CVE-2022-30190, CVSS score: 7.8) is being weaponized by a threat actor tracked as TA570 to deliver the QBot (aka Qakbot) information-stealing trojan.
“Actor uses thread hijacked messages with HTML attachments which, if opened, drop a ZIP archive,” the company said in a series of tweets detailing the phishing attacks.
“Archive contains an IMG with a Word doc, shortcut file, and DLL. The LNK will execute the DLL to start QBot. The doc will load and execute a HTML file containing PowerShell abusing CVE-2022-30190 used to download and execute Qbot.”
QBot has also been employed by initial access brokers to gain initial access to target networks, enabling ransomware affiliates to abuse the foothold to deploy file-encrypting malware.
The DFIR Report, earlier this year, also documented how QBot infections move at a rapid pace, enabling the malware to harvest browser data and Outlook emails a mere 30 minutes after initial access and propagate the payload to an adjacent workstation around the 50-minute mark.
Found this article interesting? Follow THN on Facebook, Twitter and LinkedIn to read more exclusive content we post.
Related news
Categories: Exploits and vulnerabilities Categories: News Tags: Zoho ManageEngine Tags: CVE-2021-40539 Tags: Log4Shell Tags: CVE-2021-44228 Tags: CVE-2021-13379 Tags: ProxyShell Tags: CVE-2021-34473 Tags: CVE-2021-31207 Tags: CVE-2021-34523 Tags: CVE-2021-26084 Tags: Atlassian Tags: CVE-2022-22954 Tags: CVE-2022-22960 Tags: CVE-2022-26134 Tags: CVE-2022-1388 Tags: CVE-2022-30190 Tags: Follina What can the routinely exploited vulnerabilities of 2022 tell us, and what do we think will make it on to next year's list? (Read more...) The post 2022's most routinely exploited vulnerabilities—history repeats appeared first on Malwarebytes Labs.
The threat actors behind the RomCom RAT have been suspected of phishing attacks targeting the upcoming NATO Summit in Vilnius as well as an identified organization supporting Ukraine abroad. The findings come from the BlackBerry Threat Research and Intelligence team, which found two malicious documents submitted from a Hungarian IP address on July 4, 2023. RomCom, also tracked under the names
A two-bit comedian is using a patched Microsoft vulnerability to attack the hospitality industry, and really laying it on thick along the way.
A threat cluster linked to the Russian nation-state actor tracked as Sandworm has continued its targeting of Ukraine with commodity malware by masquerading as telecom providers, new findings show. Recorded Future said it discovered new infrastructure belonging to UAC-0113 that mimics operators like Datagroup and EuroTransTelecom to deliver payloads such as Colibri loader and Warzone RAT. The
Hello everyone! In this episode, let’s take a look at the Microsoft Patch Tuesday August 2022 vulnerabilities. I use my Vulristics vulnerability prioritization tool as usual. I take comments for vulnerabilities from Tenable, Qualys, Rapid7, ZDI and Kaspersky blog posts. Also, as usual, I take into account the vulnerabilities added between the July and August […]
August Patch Tuesday tackles 121 CVEs, 17 critical bugs and one zero-day bug exploited in the wild.
An unknown threat actor has been targeting Russian entities with a newly discovered remote access trojan called Woody RAT for at least a year as part of a spear-phishing campaign. The advanced custom backdoor is said to be delivered via either of two methods: archive files and Microsoft Office documents leveraging the now-patched "Follina" support diagnostic tool vulnerability (CVE-2022-30190)
Russian threat actors capitalized on the ongoing conflict against Ukraine to distribute Android malware camouflaged as an app for pro-Ukrainian hacktivists to launch distributed denial-of-service (DDoS) attacks against Russian sites. Google Threat Analysis Group (TAG) attributed the malware to Turla, an advanced persistent threat also known as Krypton, Venomous Bear, Waterbug, and Uroburos, and
A newly observed phishing campaign is leveraging the recently disclosed Follina security vulnerability to distribute a previously undocumented backdoor on Windows systems. "Rozena is a backdoor malware that is capable of injecting a remote shell connection back to the attacker's machine," Fortinet FortiGuard Labs researcher Cara Lin said in a report this week. Tracked as CVE-2022-30190, the
Hello everyone! This will be an episode about the Microsoft vulnerabilities that were released on June Patch Tuesday and also between May and June Patch Tuesdays. Alternative video link (for Russia): https://vk.com/video-149273431_456239094 On June Patch Tuesday, June 14, 56 vulnerabilities were released. Between May and June Patch Tuesdays, 38 vulnerabilities were released. This gives us 94 […]
The APT is pairing a known Microsoft flaw with a malicious document to load malware that nabs credentials from Chrome, Firefox and Edge browsers.
Threat actors associated with Russian intelligence are using the fear or nuclear war to spread data-stealing malware in Ukraine. The post Russia’s APT28 uses fear of nuclear war to spread Follina docs in Ukraine appeared first on Malwarebytes Labs.
Patch Tuesday for June 2022 brought a fix for Follina and many other security vulnerabilities. Time to figure out what needs to be prioritized. The post Update now! Microsoft patches Follina, and many other security updates appeared first on Malwarebytes Labs.
Microsoft officially released fixes to address an actively exploited Windows zero-day vulnerability known as Follina as part of its Patch Tuesday updates. Also addressed by the tech giant are 55 other flaws, three of which are rated Critical, 51 are rated Important, and one is rated Moderate in severity. Separately, five other shortcomings were resolved in the Microsoft Edge browser. <!-
A suspected state-aligned threat actor has been attributed to a new set of attacks exploiting the Microsoft Office "Follina" vulnerability to target government entities in Europe and the U.S. Enterprise security firm Proofpoint said it blocked attempts at exploiting the remote code execution flaw, which is being tracked CVE-2022-30190 (CVSS score: 7.8). No less than 1,000 phishing messages
By Jon Munshaw. Welcome to this week’s edition of the Threat Source newsletter. Many of you readers may be gearing up for a West Coast swing over the next few weeks through San Francisco and Las Vegas for RSA and Cisco Live, respectively. And we’re right behind you! Talos... [[ This is only the beginning! Please visit the blog for the complete entry ]]
Although organizations should perform proper risk analysis and patch as soon as practical after there's a fix for this vulnerability, defenders still have options before that's released.
Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability.
FAQ for the new Follina zero-day vulnerability. What you can do to protect your computers right now. The post FAQ: Mitigating Microsoft Office’s ‘Follina’ zero-day appeared first on Malwarebytes Labs.
By Waqas The Follina vulnerability was originally discovered after a malicious Microsoft Word document was uploaded on VirusTotal from a… This is a post from HackRead.com Read the original post: Unofficial Micropatch for Follina Released as Chinese Hackers Exploit the 0-day
Threat actors already are exploiting vulnerability, dubbed ‘Follina’ and originally identified back in April, to target organizations in Russia and Tibet, researchers said.
"Follina" vulnerability in Microsoft Support Diagnostic Tool (MSDT) affects all currently supported Windows versions and can be triggered via specially crafted Office documents.
Proof of concept for the remote code execution vulnerability in MSDT known as Follina.
On Monday May 30, 2022, Microsoft issued CVE-2022-30190 regarding the Microsoft Support Diagnostic Tool (MSDT) in Windows vulnerability. A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the … Guidance for CVE-2022-30190 Microsoft Support Diagnostic Tool Vulnerability Read More »
UPDATE July 12, 2022: As part of the response by Microsoft, a defense in depth variant has been found and fixed in the Windows July cumulative updates. Microsoft recommends installing the July updates as soon as possible. Windows Version Link to KB article LInk to Catalog Windows 8.1, Windows Server 2012 R2 5015805 Download Windows Server 2012 5015805 Download Windows 7, Windows Server 2008 R2 5015805 Download Windows Server 2008 SP2 5015805 Download On Monday May 30, 2022, Microsoft issued CVE-2022-30190 regarding the Microsoft Support Diagnostic Tool (MSDT) in Windows vulnerability.