Discovered by the Wiz cloud security firm and dubbed BingBang, this vulnerability allowed researchers to change the top results in Microsoft’s Bing search engine and access any user’s private files by simply logging into an unsecured web page.
The vulnerability is centered on the Microsoft Azure Active Directory and would allow any Azure user in the world to log into it without proper credentials. All it took was a misconfigured app.
In this case it was the Bing trivia app:
After recognizing these issues and their potential impact, the researchers started scanning for vulnerable applications (multi-tenant apps lacking proper validation) on the internet. The results were shocking – approximately 25% of the multi-tenant apps they scanned were vulnerable.
Most surprisingly, the list included an app made by Microsoft itself, named “Bing Trivia.”
Because this app was misconfigured, the researchers were able to log in to it with their own Azure user.
To verify that this CMS was indeed controlling Bing’s live results, they selected a keyword in the CMS and temporarily altered its content. They chose the “best soundtracks” search query, which returned a list of highly recommended movie soundtracks.
They then proceeded to change the first result, “Dune (2021),” to their personal favorite, “Hackers (1995),” and pushed it to production. Their new result, complete with their title, thumbnail, and arbitrary link, immediately appeared on Bing.com.
Researchers then found they could run Cross-Site Scripting (XSS) attacks, and since Bing and Office 365 are integrated, an attacker could access Bing users’ Office 365 data, including Outlook emails, calendars, Teams messages, SharePoint documents, and OneDrive files. The researchers reported the flaw to Microsoft and it was patched shortly afterward, resulting in a $40,000 bug bounty reward.
Brad Hong, Customer Success Lead, Horizon3.ai had this to say:
“The BingBang incident is a reminder that passwords and simple misconfigurations are still the number one attack vector for attackers. Seemingly arbitrary in nature, it can have severe consequences on an organization’s security posture. In this case, a misconfigured application made it possible for researchers to not only gain access to Microsoft’s Azure Active Directory without proper credentials, but then from a privileged perspective chain together and execute exploits on additional vulnerabilities after making their way into the castle.
“Incidents like this validate why the industry is moving away from vulnerability models and into exploitability management, as the misconception is dispelled that attackers are looking to execute zero days, but rather the easiest ways to get in. It additionally highlights the necessity to continuously attack your own infrastructure to identify as the organization’s offerings and architecture change, new or extended vulnerabilities that can be leveraged to get in. It’s also a great reminder that as the world begins to consolidate software offerings, that linkages created between them in the name of convenience and accessibility can also become its greatest downfall.”
Luckily this was caught by a team of security researchers rather than threat actors, otherwise this could have gone very, very sideways. This goes to prove that anyone can screw up and everyone needs to be on their toes when deploying code into a public facing environment.
Elon Musk Is In Deep Trouble With Germany As Twitter Is About To Get Slapped For Not Taking Down Hate Speech
Posted in Commentary with tags Twitter on April 4, 2023 by itnerdElon, the legal consequences may be about to start hitting you while you do stupid stuff like change the Twitter symbol to the Dogecoin symbol. Germany is about to slap him silly:
In an early FAFO test for Elon Musk, Germany could be set to fine Twitter for repeatedly failing to comply with a social media hate speech takedowns law, aka the NetzDG, which requires swift removal of illegal content like hate speech.
The Federal Justice Office (BfJ) announced the move in a press release today — saying it’s instigated a proceeding under the country’s Network Enforcement Act (aka, NetzDG) after establishing there are “sufficient indications of failures” in the platform’s complaint management processes.
Under the NetzDG, social media platforms must response to user reports of illegal content, checking what’s been reported and removing content if it confirms it’s illegal, within seven days — or 24 hours for the most obviously illegal stuff. What’s illegal is governed by Germany’s criminal code, which includes hate speech, abuse and threats, and antisemitism.
“Numerous pieces of content was reported to the BfJ that was published on Twitter, which the authority considers illegal and, despite user complaints, was not deleted or blocked by the provider within the legally stipulated periods. The fine proceedings initiated are based on this,” the BfJ said in a statement (which we’ve translated from German with machine translation).
“In the case of individual violations by providers of social networks, of the inspection and deletion obligations in the NetzDG, it cannot generally be assumed that there is no effective procedure for dealing with complaints about illegal content. However, a systemic failure of complaint management is subject to fines, which occurs when violations of the relevant specifications of the NetzDG occur repeatedly in a timely manner and in a manner that is relevant to the subject.”
The Office said the content it’s acting against Twitter over is “closely related in terms of time and substance” — indicting a “systemic failure in the provider’s complaint management”. “They were published on Twitter over a period of around four months and reported to the provider of Twitter as illegal by users,” it added. “All content contains similar, unjustified, defamatory statements of opinion, all directed against the same person. According to the BfJ, they constitute an offence.”
On paper, Germany’s NetzDG law allows for fines up to €50 million for breaches of the regime.
My guess is that the Germans are going to make an example of Elon because they can. Not to mention that Elon isn’t even trying to deal with hate speech. In fact by all reports, it’s out of control on Twitter. So this is going to be a slam dunk for the Germans. And you have to wonder how Elon who is less Tony Stark and more Johnny Knoxville will handle this situation.
Place your bets now.
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