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The Hacker News - Cybersecurity News and Analysis: web server

Google Researcher Reported 3 Flaws in Apache Web Server Software

Google Researcher Reported 3 Flaws in Apache Web Server Software

August 24, 2020Ravie Lakshmanan
If your web-server runs on Apache, you should immediately install the latest available version of the server application to prevent hackers from taking unauthorized control over it. Apache recently fixed multiple vulnerabilities in its web server software that could have potentially led to the execution of arbitrary code and, in specific scenarios, even could allow attackers to cause a crash and denial of service. The flaws, tracked as CVE-2020-9490, CVE-2020-11984, CVE-2020-11993, were uncovered by Felix Wilhelm of Google Project Zero, and have since been addressed by the Apache Foundation in the latest version of the software ( 2.4.46 ). The first of the three issues involve a possible remote code execution vulnerability due to a buffer overflow with the "mod_uwsgi" module (CVE-2020-11984), potentially allowing an adversary to view, change, or delete sensitive data depending on the privileges associated with an application running on the server. "[A] Malici
Russian Police Raided NGINX Moscow Office, Detained Co-Founders

Russian Police Raided NGINX Moscow Office, Detained Co-Founders

December 12, 2019Mohit Kumar
Russian law enforcement officers have raided the Moscow offices of Nginx—the company behind the world's second most popular web server software—over a copyright infringement complaint filed by Rambler, a Russian Internet portal and email service provider. According to multiple reports from local media and social media, the police conducted searches and has also detained several employees of the company, including Igor Sysoev , the original developer of Nginx and Maxim Konovalov , another co-founder of the company. Over 30% of the websites on the Internet today, including many of the world's most popular sites like Netflix and Twitch, run on the Nginx server. Igor Sysoev created the Nginx web server in the early 2000s and open-sourced it in 2004, after which he founded the company Nginx in 2015 that has now been acquired by F5 Networks , an American technology company, for $ 670 million. According to a copy of the complaint shared on Twitter, Rambler accused that Sys
Critical Flaw in GoAhead Web Server Could Affect Wide Range of IoT Devices

Critical Flaw in GoAhead Web Server Could Affect Wide Range of IoT Devices

December 04, 2019Mohit Kumar
Cybersecurity researchers today uncovered details of two new vulnerabilities in the GoAhead web server software, a tiny application widely embedded in hundreds of millions of Internet-connected smart devices. One of the two vulnerabilities, assigned as CVE-2019-5096, is a critical code execution flaw that can be exploited by attackers to execute malicious code on vulnerable devices and take control over them. The first vulnerability resides in the way multi-part/form-data requests are processed within the base GoAhead web server application, affecting GoAhead Web Server versions v5.0.1, v.4.1.1, and v3.6.5. According to the researchers at Cisco Talos, while processing a specially crafted HTTP request, an attacker exploiting the vulnerability can cause use-after-free condition on the server and corrupt heap structures, leading to code execution attacks. The second vulnerability, assigned as CVE-2019-5097, also resides in the same component of the GoAhead Web Server and can be
Flaw in Zoom Video Conferencing Software Lets Websites Hijack Mac Webcams

Flaw in Zoom Video Conferencing Software Lets Websites Hijack Mac Webcams

July 08, 2019Swati Khandelwal
If you use Zoom video conferencing software on your Mac computer—then beware—any website you're visiting in your web browser can turn on your device camera without your permission. Ironically, even if you had ever installed the Zoom client on your device and simply uninstalled it, a remote attacker can still activate your webcam. Zoom is one of the most popular cloud-based meeting platforms that provide video, audio, and screen sharing options to users, allowing them to host webinars, teach online courses, conduct online training, or join virtual meetings online. In a Medium post published today, cybersecurity researcher Jonathan Leitschuh disclosed details of an unpatched critical security vulnerability (CVE-2019-13450) in the Zoom client app for Apple Mac computers, which if combined with a separate flaw, could allow attackers to execute arbitrary code on the targeted systems remotely. Jonathan responsibly reported the security vulnerability to the affected company ov
F5 Networks Acquires NGINX For $670 Million

F5 Networks Acquires NGINX For $670 Million

March 12, 2019Wang Wei
One of the most important software companies NGINX , which is also behind the very popular open-source web server of the same name, is being acquired by its rival, F5 Networks , in a deal valued at about $670 million. While NGINX is not a name that you have ever heard of, the reality is that you use NGINX every day when you post a photo, watch streaming video, purchase goods online, or log into your applications at work. NGINX powers over half of the busiest websites in the world. Majority of sites on the Internet today, including The Hacker News, and hundreds of thousands apps, like Instagram, Pinterest, Netflix, and Airbnb are hosted on web servers running NGINX. NGINX web server is the third most widely used servers in the world—behind only Microsoft and Apache, and ahead of Google. In short, the internet as we know it today would not exist without NGINX. F5 Acquires NGINX to Bridge NetOps and DevOps F5 Networks is the industry leader in cloud and security application
Apache Tomcat Patches Important Security Vulnerabilities

Apache Tomcat Patches Important Security Vulnerabilities

July 24, 2018Mohit Kumar
The Apache Software Foundation (ASF) has released security updates to address several vulnerabilities in its Tomcat application server, one of which could allow a remote attacker to obtain sensitive information. Apache Tomcat is an open source web server and servlet system, which uses several Java EE specifications like Java Servlet, JavaServer Pages (JSP), Expression Language, and WebSocket, and provides a "pure Java" HTTP web server environment for Java concept to run in. Unlike Apache Struts2 vulnerabilities exploited to breach the systems of America credit reporting agency Equifax late last year, new Apache Tomcat vulnerabilities are less likely to be exploited in the wild. Apache Tomcat — Information Disclosure Vulnerability The more critical flaw ( CVE-2018-8037 ) of all in Apache Tomcat is an information disclosure vulnerability caused due to a bug in the tracking of connection closures which can lead to reuse of user sessions in a new connection. The vu
Apache Tomcat Patches Important Remote Code Execution Flaw

Apache Tomcat Patches Important Remote Code Execution Flaw

October 05, 2017Swati Khandelwal
The Apache Tomcat team has recently patched several security vulnerabilities in Apache Tomcat, one of which could allow an unauthorised attacker to execute malicious code on affected servers remotely. Apache Tomcat, developed by the Apache Software Foundation (ASF), is an open source web server and servlet system, which uses several Java EE specifications like Java Servlet, JavaServer Pages (JSP), Expression Language, and WebSocket, and provides a "pure Java" HTTP web server environment for Java concept to run in. Unlike Apache Struts2 vulnerabilities , which have recently been exploited to breach the systems of American credit reporting agency Equifax , Apache Tomcat flaws are less likely to be exploited. The critical Remote Code Execution (RCE) vulnerability (CVE-2017-12617) discovered in Apache Tomcat is due to insufficient validation of user-supplied input by the affected software. Only systems with HTTP PUTs enabled (via setting the "read-only" initi
EtherParty Breach: Another Ethereum ICO Gets Hacked

EtherParty Breach: Another Ethereum ICO Gets Hacked

October 03, 2017Unknown
Etherparty announced Sunday that its ICO (Initial Coin Offering) website selling tokens for a blockchain-based smart contract tool was hacked and the address for sending funds to buy tokens was replaced by a fraudulent address controlled by the hackers. Vancouver-based Etherparty is a smart contract creation tool that allows its users to create smart contracts on the blockchain. Companies like this launch ICO to let them raise funding from multiple sources. Etherparty said the company launched its Fuel token sale on Sunday, October 1 at 9 A.M. PDT, but just 45 minutes, some unknown attackers hacked into its ICO website and replaced the legitimate address by their own, redirecting cryptocurrencies sent by investors into their digital wallet. According to the details released by the Etherparty team, the company detected the hack after just 15 minutes and immediately took its website down for nearly one and half hour to fix the issue, preventing more people from sending funds to
Critical Flaw in Apache Struts2 Lets Hackers Take Over Web Servers

Critical Flaw in Apache Struts2 Lets Hackers Take Over Web Servers

September 05, 2017Swati Khandelwal
Security researchers have discovered a critical remote code execution vulnerability in the popular Apache Struts web application framework, allowing a remote attacker to run malicious code on the affected servers. Apache Struts is a free, open-source, Model-View-Controller (MVC) framework for developing web applications in the Java programming language, which supports REST, AJAX, and JSON. The vulnerability (CVE-2017-9805) is a programming blunder that resides in the way Struts processes data from an untrusted source. Specifically, Struts REST plugin fails to handle XML payloads while deserializing them properly. All versions of Apache Struts since 2008 (Struts 2.1.2 - Struts 2.3.33, Struts 2.5 - Struts 2.5.12) are affected, leaving all web applications using the framework's REST plugin vulnerable to remote attackers. According to one of the security researchers at LGTM, who discovered this flaw, the Struts framework is being used by "an incredibly large number and va
US Defense Contractor left Sensitive Files on Amazon Server Without Password

US Defense Contractor left Sensitive Files on Amazon Server Without Password

May 31, 2017Swati Khandelwal
Sensitive files linked to the United States intelligence agency were reportedly left on a public Amazon server by one of the nation's top intelligence contractor without a password, according to a new report. UpGuard cyber risk analyst Chris Vickery discovered  a cache of 60,000 documents from a US military project for the National Geospatial-Intelligence Agency (NGA) left unsecured on Amazon cloud storage server for anyone to access. The documents included passwords to a US government system containing sensitive information, and the security credentials of a senior employee of Booz Allen Hamilton, one of the country's top defense contractors. Although there wasn't any top secret file in the cache Vickery discovered, the documents included credentials to log into code repositories that could contain classified files and other credentials. Master Credentials to a Highly-Protected Pentagon System were Exposed Roughly 28GB of exposed documents included the privat
Anonymous Hacker took down over 10,000 Dark Web Sites; Leaked User Database

Anonymous Hacker took down over 10,000 Dark Web Sites; Leaked User Database

February 05, 2017Swati Khandelwal
Dark Web is right now going through a very rough time. Just two days ago, a hacker group affiliated with Anonymous broke into the servers of Freedom Hosting II and took down more than 10,000 Tor-based .onion dark websites with an alarming announcement to its visitors, which said: " Hello, Freedom Hosting II, you have been hacked. " Freedom Hosting II is the single largest host of underground websites accessible only through Tor anonymising browser that hosts somewhere between 15 and 20 percent of all sites on the Dark Web, anonymity and privacy researcher Sarah Jamie Lewis estimated . Besides defacing all Dark Web sites hosted on Freedom Hosting II with the same message and stealing its database, the hackers also demanded a ransom for 0.1 Bitcoin (just over $100) to return the compromised data to the hosting service. Now, it has been reported that the stolen database from Freedom Hosting II has publicly been released online to a site hosted on the Tor network, wh
CTB-Locker Ransomware Spreading Rapidly, Infects Thousands of Web Servers

CTB-Locker Ransomware Spreading Rapidly, Infects Thousands of Web Servers

February 27, 2016Unknown
In last few years, we saw an innumerable rise in ransomware threats ranging from Cryptowall to Locky ransomware discovered last week. Now, another genre of ransomware had been branched out from the family of CTB-Locker Ransomware with an update to infect Websites. The newly transformed ransomware dubbed " CTB-Locker for Websites " exclusively hijacks the websites by locking out its data, which would only be decrypted after making a payment of 0.4 BTC. This seems to be the very first time when any ransomware has actually defaced a website in an attempt to convince its administrator to comply with the ransom demand. However, the infected website admins can unlock any 2 files by the random generator for free as a proof of decryption key works. Here's How CTB-Locker for Websites Ransomware Works Lawrence explained that CTB-Locker ransomware replaces the index page ( the original index.php or index.html ) of the servers hosting websites with the
Mayhem — A New Malware Targets Linux and FreeBSD Web Servers

Mayhem — A New Malware Targets Linux and FreeBSD Web Servers

July 25, 2014Swati Khandelwal
Security researchers from Russian Internet giant Yandex have discovered a new piece of malware that is being used to target Linux and FreeBSD web servers in order to make them a part of the wide botnet, even without the need of any root privileges. Researchers dubbed the malware as Mayhem, a nasty malware modular that includes a number of payloads to cause malicious things and targets to infect only those machines which are not updated with security patches or less likely to run security software. So far, researchers have found over 1,400 Linux and FreeBSD servers around the world that have compromised by the malware , with potentially thousands more to come. Most of the compromised machines are located in the USA, Russia, Germany and Canada. Three security experts, Andrej Kovalev, Konstantin Ostrashkevich and Evgeny Sidorov , who work at Russia-based Internet portal Yandex, discovered the malware targeting *nix servers . They were able to trace transmissions from th
Hacker demonstrated 'Remote Code Execution' vulnerability on EBay website

Hacker demonstrated 'Remote Code Execution' vulnerability on EBay website

December 13, 2013Mohit Kumar
A German Security researcher has demonstrated a critical  vulnerability on Ebay website, world's biggest eStore. According to David Vieira-Kurz  discovered Remote code execution flaw " due to a type-cast issue in combination with complex curly syntax ", that allows an attacker to execute arbitrary code on the EBay's web server. In a demo video, he exploited this RCE flaw on EBay website, and managed to display output of phpinfo()  PHP function on the web page, just by modifying the URL and injecting code in that. According to an explanation on his blog , he noticed a legitimate URL on EBay: https://sea.ebay.com/search/?q=david&catidd=1  . . and modified the URL to pass any array values including a payload: https://sea.ebay.com/search/?q[0]=david&q[1]=sec{${ phpinfo() }}&catidd=1 Video Demonstration: But it is not clear at this moment that where the flaw resides on Ebay server, because how a static GET parameter can be converted to accept like an array
Network Enabled Samsung TVs vulnerable to Denial of Service Attack

Network Enabled Samsung TVs vulnerable to Denial of Service Attack

July 22, 2013Mohit Kumar
A vulnerability in the latest firmware of the network-enabled Samsung TV models allows potential attackers to crash the vulnerable devices using Denial of Service ( DoS ) Attack, according to security researcher Malik Mesellem . According to Malik, The web server (DMCRUIS/0.1) installed on Smart TVs on port TCP/5600 can be crashed to reboot the device, if attacker will send a long HTTP GET request on TV's ip address. Malik successfully tested the exploit on his Samsung PS50C7700 plasma TV, as shown in the video demonstration below: In the Demo, The TV is connected by ethernet cable to a home network, and after running the exploit against TV's ip address - A few seconds later, the TV would restart and repeat the process. This means that a potential attacker only needs to obtain access to the LAN that the TV has joined, in order to attack it. This can be done either by breaking into a wireless access point or by infecting a computer on the same network with
Upgrade ModSecurity to version 2.7.4 for fixing Denial of Service Vulnerability

Upgrade ModSecurity to version 2.7.4 for fixing Denial of Service Vulnerability

May 29, 2013Mohit Kumar
ModSecurity is an open source web application firewall. It provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis. ModSecurity developers team recently fixed a vulnerability ( CVE-2013-2765 ) which could be exploited by attackers to crash the firewall . The vulnerability is caused due to an error when processing the " forceRequestBodyVariable " action and can be exploited to cause a NULL pointer dereference via specially crafted HTTP requests.  Flaw was reported by Younes Jaaidi, according to him an attacker can exploit this issue using a web browser. He also released an Exploit for this flaw, which is publicly available at  Github  for download. Through the program to upgrade to version 2.7.4 fixes this problem, this version also fixes some minor bug and lib injection used to identify SQL injection attacks, while the development team also announced its portable version of Nginx has
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