The blog post details a sophisticated, low-and-slow password spray attack targeting Microsoft 365 accounts. Instead of rapid, easily detected attempts, the attackers used a large botnet to try a small number of common passwords against a massive list of usernames, cycling through different IP addresses and spreading attempts over weeks or months. This approach evaded typical rate-limiting security measures. The attack was discovered through unusual authentication patterns showing a high failure rate with specific common passwords across many accounts. The post emphasizes the importance of strong, unique passwords, multi-factor authentication, and robust monitoring to detect such subtle attacks.
A security researcher discovered a critical vulnerability in a major New Zealand service provider's website. By manipulating a forgotten password request, they were able to inject arbitrary JavaScript code that executed when an administrator viewed the request in their backend system. This cross-site scripting (XSS) vulnerability allowed the researcher to gain access to administrator cookies and potentially full control of the provider's systems. Although they demonstrated the vulnerability by merely changing the administrator's password, they highlighted the potential for far more damaging actions. The researcher responsibly disclosed the vulnerability to the provider, who promptly patched the flaw and awarded them a bug bounty.
HN commenters discuss the ethical implications of the author's actions, questioning whether responsible disclosure was truly attempted given the short timeframe and lack of clear communication with the affected company. Several express skepticism about the "major" provider claim, suggesting it might be smaller than portrayed. Some doubt the technical details, pointing out potential flaws in the exploit description. Others debate the legality of the actions under New Zealand law, with some suggesting potential CFAA violations, despite the author's New Zealand origin. A few commenters offer alternative explanations for the observed behavior, proposing it might be a misconfiguration rather than a vulnerability. The overall sentiment is critical of the author's approach, emphasizing the potential for harm and the importance of responsible disclosure practices.
Security researcher Eric Daigle discovered a significant vulnerability in several "smart" apartment intercom systems. By exploiting a poorly implemented API within these systems, he was able to remotely unlock building doors and individual apartment units using only his phone and publicly available information. He accomplished this by crafting specific HTTP requests that bypassed security measures, granting him unauthorized access. Daigle responsibly disclosed the vulnerability to the affected vendors, prompting them to address the issue and improve their security protocols. This highlighted the risk associated with insecure IoT devices and the importance of robust API security in connected building systems.
HN commenters discuss the prevalence of easily-exploitable vulnerabilities in building access control systems. Several highlight the inherent insecurity of relying solely on cellular connections for such critical infrastructure, pointing out the ease with which cellular signals can be intercepted or spoofed. Others note the conflict between convenience and security, acknowledging that many residents prioritize ease of access over robust protection. Some commenters share anecdotal experiences with similar vulnerabilities in their own buildings, while others suggest potential solutions, such as requiring secondary authentication factors or utilizing more secure communication protocols. The ethical implications of publicly disclosing such vulnerabilities are also debated, with some arguing for responsible disclosure while others emphasize the urgent need for awareness and immediate action. A few commenters question the author's decision to reveal specific technical details, fearing it could empower malicious actors.
The blog post "Removing Jeff Bezos from My Bed" details the author's humorous, yet slightly unsettling, experience with Amazon's Echo Show 15 and its personalized recommendations. The author found that the device, positioned in their bedroom, consistently suggested purchasing a large, framed portrait of Jeff Bezos. While acknowledging the technical mechanisms likely behind this odd recommendation (facial recognition misidentification and correlated browsing data), they highlight the potential for such personalized advertising to become intrusive and even creepy within the intimate space of a bedroom. The post emphasizes the need for more thoughtful consideration of the placement and application of AI-powered advertising, especially as smart devices become increasingly integrated into our homes.
Hacker News users generally found the linked blog post humorous and relatable. Several commenters shared similar experiences with unwanted targeted ads, highlighting the creepiness factor and questioning the effectiveness of such highly personalized marketing. Some discussed the technical aspects of how these ads are generated, speculating about data collection practices and the algorithms involved. A few expressed concerns about privacy and the potential for misuse of personal information. Others simply appreciated the author's witty writing style and the absurdity of the situation. The top comment humorously suggested an alternative headline: "Man Discovers Retargeting."
Zach Holman's post "Nontraditional Red Teams" advocates for expanding the traditional security-focused red team concept to other areas of a company. He argues that dedicated teams, separate from existing product or engineering groups, can provide valuable insights by simulating real-world user behavior and identifying potential problems with products, marketing campaigns, and company policies. These "red teams" can act as devil's advocates, challenging assumptions and uncovering blind spots that internal teams might miss, ultimately leading to more robust and user-centric products and strategies. Holman emphasizes the importance of empowering these teams to operate independently and providing them the freedom to explore unconventional approaches.
HN commenters largely agree with the author's premise that "red teams" are often misused, focusing on compliance and shallow vulnerability discovery rather than true adversarial emulation. Several highlighted the importance of a strong security culture and open communication for red teaming to be effective. Some commenters shared anecdotes about ineffective red team exercises, emphasizing the need for clear objectives and buy-in from leadership. Others discussed the difficulty in finding skilled red teamers who can think like real attackers. A compelling point raised was the importance of "purple teaming" – combining red and blue teams for collaborative learning and improvement, rather than treating it as a purely adversarial exercise. Finally, some argued that the term "red team" has become diluted and overused, losing its original meaning.
Summary of Comments ( 15 )
https://news.ycombinator.com/item?id=43512944
HN users discussed the practicality of the password spraying attack described in the article, questioning its effectiveness against organizations with robust security measures like rate limiting, account lockouts, and multi-factor authentication. Some commenters highlighted the importance of educating users about password hygiene and the need for strong, unique passwords. Others pointed out that the attack's "slow and steady" nature, while evasive, could be detected through careful log analysis and anomaly detection systems. The discussion also touched on the ethical implications of penetration testing and the responsibility of security researchers to disclose vulnerabilities responsibly. Several users shared personal anecdotes about encountering similar attacks and the challenges in mitigating them. Finally, some commenters expressed skepticism about the novelty of the attack, suggesting that it was a well-known technique and not a groundbreaking discovery.
The Hacker News post titled "Unmasking a slow and steady password spray attack" (linking to a Petra Security Substack article) generated a moderate number of comments, primarily focusing on the technical aspects and implications of the described attack.
Several commenters discussed the effectiveness and practicality of the described attack method. Some expressed skepticism about its widespread applicability, highlighting that the specific vulnerability exploited (allowing unlimited login attempts without lockout) is becoming increasingly rare due to improved security practices. They pointed out that many modern systems implement robust rate-limiting and account lockout mechanisms, making such slow and steady password spraying significantly less effective.
Others acknowledged the potential danger, particularly in environments where security practices are less mature. They noted that legacy systems or organizations with inadequate security configurations could still be vulnerable to this type of attack. There was some debate around the trade-offs between security and usability, with some suggesting that overly aggressive lockout policies can negatively impact legitimate users.
A few commenters delved into the technical details of the attack, discussing methods for detection and mitigation. They mentioned techniques like analyzing login logs for suspicious patterns, implementing multi-factor authentication, and using honeypot accounts to trap attackers. The use of threat intelligence feeds to identify commonly used passwords and block them proactively was also suggested.
Some comments focused on the attacker's persistence and methodology. The slow and steady nature of the attack, designed to evade detection, was highlighted as a key characteristic. The discussion also touched upon the resources and infrastructure required by the attackers to execute such campaigns, suggesting that they might be more sophisticated than initially assumed.
Finally, there was a brief discussion about the broader implications of this type of attack, including the potential damage to reputation and financial losses for affected organizations. The importance of proactive security measures and ongoing vigilance was emphasized as a key takeaway.