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The Hacker News - Cybersecurity News and Analysis: Critical vulnerability

Adobe Releases Emergency Flash Player Update to Address Critical Vulnerability

Adobe Releases Emergency Flash Player Update to Address Critical Vulnerability
November 26, 2014Mohit Kumar
Adobe has rolled-out an urgent out-of-band update for a critical remote code-execution vulnerability in its popular Flash Player that is currently being exploited by hackers. The critical vulnerability ( CVE 2014-8439 ) in Flash Player for Windows, Mac and Linux was originally mitigated more than a month ago in October 14, 2014 patch release, but a French researcher Kafeine found its exploits in the Angler and Nuclear malware kits after Adobe released a patch, according to security vendor F-Secure. " The vulnerability is being exploited in blind mass attack. No doubt about it : the team behind Angler is really good at what it does ," Kafeine said in a blog post . The vulnerability allows an attacker to execute arbitrary code due to a weakness in the way a dereferenced pointer to memory is handled. An attacker could serve a specially crafted Flash file to trigger the vulnerability, which would lead to the execution of attacker's code in order to take control

Microsoft Patch Tuesday to Fix Three Critical Remote Code Execution vulnerabilities

Microsoft Patch Tuesday to Fix Three Critical Remote Code Execution vulnerabilities
August 13, 2013Mohit Kumar
Yeah, it's Patch Tuesday once again. Almost 10 years ago in October, 2003 - Microsoft  invented the process of regularly scheduled security updates on every second Tuesday of the Month, as  Patch Tuesday. Today, the Microsoft Security team will i ssue eight security updates in total, out of that -- three of which are designated as " critical ," and rest five as " Important " updates, that patches vulnerabilities in Microsoft Windows, Microsoft Server Software, and Internet Explorer. The eight bulletins that Microsoft is releasing fixes a total of 23 different vulnerabilities in Microsoft products. Microsoft will be rolling out a total of three Critical patches dealing with Remote Code Execution. Windows 8 is expected to get four of the updates, one of them is critical and dealing with Remote Code Execution with Internet Explorer 10, while the other three updates are Important and deal with Elevation of Privilege and Denial of Service . Windows RT i

Firefox 21 Launches with 3 critical fixes and new Social Integrations

Firefox 21 Launches with 3 critical fixes and new Social Integrations
May 15, 2013Mohit Kumar
Mozilla has launched Firefox 21 for Mac, Windows, and Linux, adding a number of improvements, namely to the browser's Social API. " Today, we are adding multiple new social providers Cliqz, Mixi and msnNOW to Firefox ," wrote Mozilla in a blog post today. The browser first added Facebook integration back in December, and the inclusion of these services goes a long way towards making social integration an even larger part of the services offered. The Do Not Track feature has been part of Firefox for some time now. You can enable it to add information to each connection request to tell sites about your tracking preference. Along with adding more social integration, the release also closed up security holes in the browser rated as high in severity, including two in the Mozilla Maintenance Service although only one of them left the browser open to potential remote exploits . Fixed in Firefox 21 MFSA 2013-48 Memory corruption found using Address Sanitize

HP LaserJet Security flaw allows remote data access

HP LaserJet Security flaw allows remote data access
March 14, 2013Wang Wei
A critical vulnerability discovered in certain LaserJet Pro printers that could give remote attackers access to sensitive data. Homeland Security's Computer Emergency Response Team recently issued a vulnerability note warning that HP LaserJet Professional printers contain a telnet debug shell which could allow a remote attacker to gain unauthorized access to data. This flaw was discovered by a Germany security expert, Christoph von Wittich . He detected the vulnerability during a routine network scan of his company's corporate network. He said the vulnerability could also be used for a denial-of-service attack. " As long as the printer is not connected to the Internet, this vulnerability should not cause much trouble for the end user ,". Marked as CVE-2012-5215 ( VU#782451 , SSRT101078), vulnerability affected 12 printer models including HP LaserJet Pro P1102w, P1102w, P1606dn, M1212nf MFP, M1213nf MFP, M1214nfh MFP, M1216nfh Multifunction Printer, M1217n

It's Patch Tuesday, Microsoft rolling out Critical security updates

It's Patch Tuesday, Microsoft rolling out Critical security updates
March 11, 2013Mohit Kumar
It's Microsoft Patch Tuesday, and time of the month in which we gather round, hold hands, and see just how much of Microsoft's software needs patching. Prepare your systems, Microsoft is expected to issue seven bulletins affecting all versions of its Windows operating system (OS), some Office components and also Mac OS X, through Silverlight and Office and 4 out of 7 are critical patches. Critical :  The first bulletin will address a remote code execution vulnerability affecting Windows and Internet Explorer. Critical : The second bulletin addresses a remote code execution vulnerability affecting Microsoft Silverlight. Critical :  The third bulletin addresses a remote code execution vulnerability affecting Office. The fourth security bulletin addresses a critical elevation of privilege vulnerability affecting both the Office and Server suites. Important : The fifth and sixth security bulletins address an information disclosure vulnerability affecting Microsoft Off

New Adobe Reader Zero-Day Vulnerability spotted in the wild

New Adobe Reader Zero-Day Vulnerability spotted in the wild
February 13, 2013Wang Wei
FireEye researchers recently came across a zero-day security flaw in Adobe Reader that's being actively exploited in the wild. The zero-day vulnerability is in Adobe PDF Reader 9.5.3, 10.1.5, 11.0.1 and earlier versions. According to researchers, once malware takes advantage of the flaw, its payload drops two dynamic-link libraries, or DLLs, which are application extensions used by executable files to perform a task. In this case, they allow the infected computer to communicate with a hacker-owned server. No additional details about the zero-day vulnerabilities have been publicly released, and but researchers with antivirus provider Kaspersky Lab have confirmed the exploit can successfully escape the Adobe sandbox. " We have already submitted the sample to the Adobe security team. Before we get confirmation from Adobe and a mitigation plan is available, we suggest that you not open any unknown PDF files ," said FireEye team. But until the vulnerability gets patched,

nCircle patches PureCloud vulnerability scanner on Vulnerability-Lab report

nCircle patches PureCloud vulnerability scanner on Vulnerability-Lab report
January 29, 2013Mohit Kumar
The Vulnerability-Laboratory Research Team discovered persistent and client side POST Injection web vulnerability in the nCircle PureCloud (cloud-based) Vulnerability Scanner Application. The vulnerability allows an attacker to inject own malicious script code in the vulnerable module on application side. Benjamin K.M. from Vulnerability-Laboratory provide more technical details about these flaws, the first vulnerability is located in the Scan Now > Scan Type > Perimeter Scan > Scan section when processing to request via the ` Scan Specific Devices - [Add Devices] ` module and the bound vulnerable formErrorContent exception-handling application parameters. The persistent injected script code will be executed out of the `invalid networks` web application exception-handling. To bypass the standard validation of the application filter the attacker need to provoke the specific invalid networks exception-handling error. In the second step the attacker spli

New Java exploit sells for $5000 on Black market

New Java exploit sells for $5000 on Black market
January 17, 2013Mohit Kumar
We continues to recommend users disable the Java program in their Web browsers, because it remains vulnerable to attacks that could result in identity theft and other cyber crimes and less than 24 hours after Oracle Sunday released a security update that addresses two critical zero-day vulnerabilities in Java that are being actively exploited by attackers, an online vulnerability seller began offering a brand-new Java bug for sale. According to a report , a Java exploits was being advertised for $5,000 a piece in an underground Internet forum and the new zero-day vulnerability was apparently already in at least one attacker's hands. The thread has since been deleted from the forum indicating a sale has been made, something sure to bring more concern to Oracle.Oracle can't predict the future, and its engineers obviously can't predict what exploits are going to be found in its software. The most recent hold Java fixed allowed hackers to enter a computer by using compro

Internet Explorer 6, 7 and 8 vulnerable to remote code execution

Internet Explorer 6, 7 and 8 vulnerable to remote code execution
December 31, 2012Mohit Kumar
Last Friday, we reported that the website of the U.S. Council of Foreign Relations was allegedly compromised by Chinese hackers who exploited the zero-day bug that was only discovered that same day. The CFR website was compromised with JavaScript that served malicious code to older IE browsers and the code then created a heap-spray attack using Adobe Flash Player. Yesterday former hacker Bryce Case Jr (YTCracker) tweeted about a new zero day exploit threatening all users of IE8, " internet explorer 6-8 0day making the rounds force them toolbar installs and keyloggers on exgf while you still can... ". On Saturday, Microsoft published a security advisory warning users of Internet Explorer 6, 7, and 8 that they could be vulnerable to remote code execution hacks. The vulnerability is a remote code execution vulnerability that exists in the way that Internet Explorer accesses an object in memory that has been deleted or has not been properly allocated. The vuln

WordPress plugin W3 Total Cache critical Vulnerability disclosed

WordPress plugin W3 Total Cache critical Vulnerability disclosed
December 26, 2012Wang Wei
One of the most popular Wordpress Plugin called " W3 Total Cache " which is used to Improve site performance and user experience via caching, having potential vulnerability. On Christmas day, someone disclose it on full-disclosure site that how a plugin misconfiguration leads to possible Wordpress cms hack. The loophole is actually activated on the fact that how W3TC stores the database cache. Jason disclosed that cache data is stored in public accessible directory, from where a malicious attack can can retrieve password hashes and other database information. Default location where this plugin stores data is " /wp-content/w3tc/dbcache/ " and if directory listing is enabled, attacker can browse and download it. He said," Even with directory listings off, cache files are by default publicly downloadable, and the key values / file names of the database cache items are easily predictable. " Because the plugin is very famous ,so this makes quite

VMware View critical directory traversal vulnerability

VMware View critical directory traversal vulnerability
December 20, 2012Mohit Kumar
(DDI) Vulnerability Research Team (VRT) for reported a critical vulnerability in VMware View Server , that  is a directory traversal vulnerability that allows an unauthenticated remote attacker to retrieve arbitrary files from affected View Servers. Exploitation of this issue may expose sensitive information stored on the server. VMware has issued a patch for its VMware View product. It is listed as ' VMSA-2012-0017 ' in security advisory. This vulnerability affects both the View Connection Server and the View Security Server; VMware recommends that customers immediately update both servers to a fixed version of View. The Common Vulnerabilities and Exposures project has assigned the name CVE-2012-5978 to this issue. VMware's update to VMware View is available for free to license holders of the product and can be downloaded here . Disabling the Security Server will prevent exploitation of this vulnerability over untrusted remote networks or It may be p

Etsy for iPhone loophole allows attacker to hijack Accounts

Etsy for iPhone loophole allows attacker to hijack Accounts
December 15, 2012Mohit Kumar
Mohamed Ramadan from Attack-Secure discovered a critical vulnerability in Etsy's iPhone application. Etsy is a social commerce website focused on handmade or vintage items as well as art and craft supplies. Any attacker on the same network can sniff traffic (including user password) invisibly without any warning from Etsy app. Its is very similar to the man in the middle attack reported in iPhone Instagram app a few days back. Bug Hunting ! Because Etsy having a Security Bug Bounty Program , so first Mohamed was trying to find a vulnerability in Etsy website , later he found that they have enough good security. Because Etsy mobile apps are eligible in bug bounty program, so next try was on Mobile apps. Mohamed finally  downloaded the latest version 2.2 and installed that on his iPhone 4S with iOS 6 and also on his ipad. Then he configured his Burp Suite proxy 1.5 to listen on all interfaces on port 8080 in invisible mode.  He disabled any firewall and con

Remote 0day Exploit for Tectia SSH Server released

Remote 0day Exploit for Tectia SSH Server released
December 02, 2012Mohit Kumar
Hacker @kingcope discovered critical vulnerability in Tectia SSH Server. Exploit working on SSH-2.0-6.1.9.95 SSH Tectia Server (Latest available version from www.tectia.com) that allow attacker to bypass Authentication remotely. Description :  An attacker in the possession of a valid username of an SSH Tectia installation running on UNIX (verified on AIX/Linux) can login without a password. The bug is in the "SSH USERAUTH CHANGE REQUEST" routines which are there to allow a user to change their password. A bug in the code allows an attacker to login without a password by forcing a password change request prior to authentication. Download Exploit Code : Click Here A default installation on Linux (version 6.1.9.95 of Tectia) is vulnerable to the attack. Eric Romang posted a Demo video on Youtube, hope you will like it :) Command Source : https://goo.gl/BHqWd

Java zero-day exploit sold in underground Market

Java zero-day exploit sold in underground Market
November 27, 2012Anonymous
Once again a zero day vulnerability exploit is sold by cyber criminals in the underground, once again a the flaw is related to Oracle's Java software that could allow to gain remote control over victim's machine. The news has been reported by KrebsOnSecurity blog that announced that the exploit being sold on an Underweb forum. The vulnerability is related to the most recent version of Java JRE 7 Update 9, it isn't present in previous versions of the framework, in particular the bug resides within the Java class "MidiDevice according the info provided by the seller that describes it with following statements: " Code execution is very reliable, worked on all 7 version I tested with Firefox and MSIE on Windows 7 ," " I will only sell this ONE TIME and I leave no guarantee that it will not be patched so use it quickly. " The exploited class is a component of Java that handles audio input and output. It's easy to understand that similar vulnerability has a great value du

Airline, Myspace, Banks, Government websites vulnerable to Hackers

Airline, Myspace, Banks, Government websites vulnerable to Hackers
November 04, 2012Mohit Kumar
Cross Site Scripting (XSS) is currently the most common vulnerability in the world. This is vulnerability of some host which allows anyone to inject code/scripts into the page. The injected scripts could be html tags, javascript script, vbscript scripts. A Hacker with virtual name ' Human mind cracker ' expose similar v ulnerabilities in some big and Important sites, like  Israel airline, Myspace, MTV website, Sweden government, Bangladesh bank, Nasa subdomain, Brown University, Afghanistan government website and Rome government website. In a pastebin note , hacker disclose the vulnerabilities and exact working links. These Cross Site Scripting existence is because of the lack of filtering engines to user inputs at websites, forms and web servers. Most of the time readers thinks that XSS is a very minor bug and having very less impact. But if implemented in a better way, that can harm all the visitors who will visit infected site. One of the biggest risk h

Smartphone wireless chipset vulnerable to DoS attack

Smartphone wireless chipset vulnerable to DoS attack
October 25, 2012Mohit Kumar
Security researcher Andres Blanco from CoreSecurity discovered a serious vulnerability in two Wireless Broadcom chipsets used in Smartphones. Broadcom Corporation, a global innovation leader in semiconductor solutions for wired and wireless communications. Broadcom BCM4325 and BCM4329 wireless chipsets have been reported to contain an out-of-bounds read error condition that may be exploited to produce a denial-of-service condition. Other Broadcom chips are not affected. The CVE ID given to issue is  CVE-2012-2619 . In advisory they reported that this error can be leveraged to denial of service attack, and possibly information disclosure. An attacker can send a RSN (802.11i) information element, which causes the Wi-Fi NIC to stop responding. Products containing BCM4325 chipsets: Apple iPhone 3GS Apple iPod 2G HTC Touch Pro 2 HTC Droid Incredible Samsung Spica Acer Liquid Motorola Devour Ford Edge (yes, it's a car) Products containing BCM4329 chipsets: Apple iPhone 4 Ap

CVE-2012-4501 : Critical vulnerability warned in Cloudstack

CVE-2012-4501 : Critical vulnerability warned in Cloudstack
October 09, 2012Mohit Kumar
Citrix and the Apache Software Foundation have alerted users to a critical vulnerability in the CloudStack open source cloud infrastructure management software. The vulnerability affects all versions of Cloudstack prior to October 7, including the Citrix commercial version. Vulnerability could allow an attacker to take a number of unwanted actions, including deleting all of the virtual machines on a system. There are no known exploits at this time, Details of the issue were disclosed on Sunday. Cloudstack is one of the largest open source cloud infrastructure management systems together with OpenStack and Eucalyptus. Mitigation against the vulnerability is possible by logging into the Cloudstack MySQL database, disabling the system user and setting a random password. " The CloudStack PPMC was notified of a configuration vulnerability that exists in development versions of the Apache Incubated CloudStack project. This vulnerability allows a malicious user to execute ar
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