Exploit for Server-Side Request Forgery in Microsoft

proxynotshell-IOC-Checker Powershell script used to check for...

TOP 10 unattributed APT mysteries

Targeted attack attribution is always a tricky thing, and in general, we believe that attribution is best left to law enforcement agencies. The reason is that, while in 90% of cases it is possible to understand a few things about the attackers, such as their native language or even location, the...

Exploitation of Unpatched Zero-Day Remote Code Execution Vulnerability in Zimbra Collaboration Suite (CVE-2022-41352)

Note: Zimbra release 9.0.0 P27 addressed this vulnerability on October 10, 2022. CVE-2022-41352 is an unpatched remote code execution vulnerability in Zimbra Collaboration Suite discovered in the wild due to active exploitation. The vulnerability is due to the method cpio in which Zimbra’s...

Mitigation for Exchange Zero-Days Bypassed! Microsoft Issues New Workarounds

Microsoft has revised its mitigation measures for the newly disclosed and actively exploited zero-day flaws in Exchange Server after it was found that they could be trivially bypassed. The two vulnerabilities, tracked as CVE-2022-41040 and CVE-2022-41082, have been codenamed ProxyNotShell due to...

Microsoft Exchange Server October 2022 Zero-day Vulnerabilities (ProxyNotShell)

The Microsoft Exchange Server installed on the remote host is potentially affected by multiple zero-day vulnerabilities, dubbed ProxyNotShell: - An unspecified authenticated server-side request forgery SSRF vulnerability. CVE-2022-41040 - An unspecified authenticated remote code execution RCE...

Akamai’s Response to Zero-Day Vulnerabilities in Microsoft Exchange Server (CVE-2022-41040 and CVE-2022-41082)

Akamai Security Research has released web application firewall protections for Microsoft Exchange CVE-2022-41040 and CVE-2022-41082...

CVE-2022-41082

Microsoft Exchange Server Remote Code Execution Vulnerability Recent assessments: zeroSteiner at January 10, 2023 2:58pm UTC reported: CVE-2022-41082, also known as ProxyNotShell is an authenticated RCE in Microsoft Exchange. ProxyNotShell actually combines CVE-2022-41082 and CVE-2022-41040 for t...

Acronis: mail.acronis.com is vulnerable to zero day vulnerability CVE-2022-41040

Hello Acronis team, Please run curl -ksL -m5 -o /dev/null -I -w "%httpcode" "https://mail.acronis.com/autodiscover/autodiscover.json?Email=autodiscover/[email protected]&Protocol=ActiveSync" curl -ksL -m5...

Microsoft Exchange Server Has a Zero-Day Problem

Plus: CIA failures allegedly got US informants killed, a former NSA worker is charged under the Espionage Act, and more...

Analyzing attacks using the Exchange vulnerabilities CVE-2022-41040 and CVE-2022-41082

October 1, 2022 update – Added information about Exploit:Script/ExchgProxyRequest.A, Microsoft Defender AV’s robust detection for exploit behavior related to this threat. We also removed a section on MFA as a mitigation, which was included in a prior version of this blog as standard guidance...

Qualys Response to ProxyNotShell Microsoft Exchange Server Zero-Day Threat Using Qualys Cloud Platform

On September 29, 2022, active attacks against Microsoft Exchange were reported by Vietnamese cybersecurity company GTSC. The researcher at GTSC reported two critical vulnerabilities now named “ProxyNotShell” in Microsoft Exchange Server via two advisories issued by Zero Day Initiative:...

Microsoft Exchange Server Vulnerabilities CVE-2022-41040 and CVE-2022-41082

On September 29, Microsoft security researchers announced two new zero-day vulnerabilities, CVE-2022-41040 and CVE-2022-41082 affecting Microsoft Exchange Server. The vulnerabilities allow remote code execution RCE when used in tandem. It is important to note that both require authenticated acces...

[updated]Two new Exchange Server zero-days in the wild

Microsoft has issued some customer guidance as it investigates yes, more reported vulnerabilities in Microsoft Exchange Server, affecting the 2013, 2016, and 2019 versions of the software. The company says it "is aware of limited targeted attacks using the two vulnerabilities to get into users...

Go Update iOS, Chrome, and HP Computers to Fix Serious Flaws

Plus: WhatsApp plugs holes that could be used for remote execution attacks, Microsoft patches a zero-day vulnerability, and more...

Unpatched zero-day vulnerabilities of Microsoft Exchange Server

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary Microsoft Exchange Server has two unpatched zero-day vulnerabilities. One of them is a Server-Side Request Forgery SSRF vulnerabilityCVE-2022-41040, while the second is a remote code execution RCE...

Sophos Zero-day vulnerability becomes target for attackers

Threat Level Vulnerability Report For a detailed threat advisory, download the pdf file here Summary A zero-day vulnerability in the User Portal and WebAdmin of Sophos Firewall has been tracked as CVE-2022-3236. This vulnerability is been used by some unknown attackers to target organizations in...

Microsoft Confirms 2 New Exchange Zero-Day Flaws Being Used in the Wild

Microsoft officially disclosed it investigating two zero-day security vulnerabilities impacting Exchange Server 2013, 2016, and 2019 following reports of in-the-wild exploitation. "The first vulnerability, identified as CVE-2022-41040, is a Server-Side Request Forgery SSRF vulnerability, while th...

Microsoft Exchange サーバーのゼロデイ脆弱性報告に関するお客様向けガイダンス

本ブログは、Customer Guidance for Reported Zero-day Vulnerabilities in Microsoft Exchange Serverの抄訳版です。最新の情報は原文を参照してくだ...

Customer Guidance for Reported Zero-day Vulnerabilities in Microsoft Exchange Server

November 8, 2022 update - Microsoft released security updates for CVE-2022-41040 and CVE-2022-41082. We recommend that customers protect their organizations by applying the updates immediately to affected systems. The options described in the Mitigations section are no longer recommended. For mor...

Customer Guidance for Reported Zero-day Vulnerabilities in Microsoft Exchange Server

November 8, 2022 update - Microsoft released security updates for CVE-2022-41040 and CVE-2022-41082. We recommend that customers protect their organizations by applying the updates immediately to affected systems. The options described in the Mitigations section are no longer recommended. For mor...