Skip to main content

Microsoft has a subdomain hijacking problem


A security researcher has pointed out today that Microsoft has a problem in managing its thousands of subdomains, many of which can be hijacked and used for attacks against users, its employees, or for showing spammy content.

The issue has been brought up today by Michel Gaschet, a security researcher and a developer for NIC.gp.
In an interview with ZDNet, Gaschet said that during the past three years, he's been reporting subdomains with misconfigured DNS records to Microsoft, but the company has either been ignoring reports or silently securing some subdomains, but not all.
RESEARCHER: ONLY 5%-10% GOT FIXED
Gaschet says he reported 21 msn.com subdomains that were vulnerable to hijacks to Microsoft in 2017 [1, 2], and then another 142 misconfigured microsoft.com subdomains in 2019 [1, 2].
BLAME DNS MISCONFIGURATIONS
Gaschet told ZDNet the OS maker usually fixes big subdomains, like cloud.microsoft.com and account.dpedge.microsoft.com, but leaves the other subdomains exposed to hijacks.

 But until now, these misconfigurations have never caused Microsoft any problems or headaches, despite being an attractive attack surface.
Luckily, no dangerous threat groups have noticed this problem.

Sadly, others have.
Today, Gaschet pointed out on Twitter that at least one spam group has figured out they could hijack Microsoft's subdomains and boost their spammy content by hosting it on a reputable domain

 Gaschet says he spotted ads for Indonesian poker casinos on at least four legitimate Microsoft subdomains. These include portal.ds.microsoft.com, perfect10.microsoft.com, ies.global.microsoft.com, and blog-ambassadors.microsoft.com.

The spammy ads are still live at the time of writing.

 Source: https://www.zdnet.com/article/microsoft-has-a-subdomain-hijacking-problem/


Comments

Post a Comment

Popular posts from this blog

Understanding Ransomware

Ransomware is a type of malicious software designed to encrypt or block access to a victim's files or entire computer system. The attackers demand a ransom payment, typically in cryptocurrencies, in exchange for providing the decryption key or restoring access. This insidious form of cyberattack has evolved over the years, becoming more sophisticated and causing significant disruption.   The impact of ransomware attacks can be devastating on multiple levels. For individuals, it can result in the loss of personal data, compromising sensitive information like financial records or personal documents. In businesses, ransomware can disrupt operations, leading to financial losses, reputational damage, and potential legal implications. Critical infrastructure, such as healthcare or government systems, can also become targets, risking public safety and national security.
Post a Comment
Read more

Information security !!!

 
Post a Comment
Read more

Different types of cyber attacks

Malware attacks: Malware attacks involve the use of malicious software, such as viruses, worms, or ransomware, to damage or disrupt systems or steal sensitive data. Phishing attacks: Phishing attacks involve the use of fake emails or websites to trick individuals into revealing sensitive information, such as passwords or financial data. Denial of service (DoS) attacks: DoS attacks involve flooding a network or website with traffic in an attempt to make it unavailable to users. SQL injection attacks: SQL injection attacks involve injecting malicious code into a database through a website or application in order to gain unauthorized access or steal sensitive data. Man-in-the-middle (MitM) attacks: MitM attacks involve intercepting communications between two parties in order to gain access to sensitive information or to alter the content of the communication. Insider attacks: Insider attacks involve the use of an individual's authorized access to systems or data to compromise the secu...
Post a Comment
Read more