The Hacker News Logo
Subscribe to Newsletter

The Hacker News - Cybersecurity News and Analysis: remote code execution

Capital One Fined $80 Million for 2019 Data Breach Affecting 106 Million Users

Capital One Fined $80 Million for 2019 Data Breach Affecting 106 Million Users

August 07, 2020Swati Khandelwal
A United States regulator has fined the credit card provider Capital One Financial Corp with $80 million over last year's data breach that exposed the personal information of more than 100 million credit card applicants of Americans. The fine was imposed by the Office of the Comptroller of the Currency (OCC), an independent bureau within the United States Department of the Treasury that governs the execution of laws relating to national banks. According to a press release published by the OCC on Thursday, Capital One failed to establish appropriate risk management before migrating its IT operations to a public cloud-based service, which included appropriate design and implementation of certain network security controls, adequate data loss prevention controls, and effective dispositioning of alerts. The OCC also said that the credit card provider also left numerous weaknesses in its cloud-based data storage in an internal audit in 2015 as well as failed to patch security
Citrix Issues Critical Patches for 11 New Flaws Affecting Multiple Products

Citrix Issues Critical Patches for 11 New Flaws Affecting Multiple Products

July 08, 2020Ravie Lakshmanan
Citrix yesterday issued new security patches for as many as 11 security flaws that affect its Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WAN Optimization edition (WANOP) networking products. Successful exploitation of these critical flaws could let unauthenticated attackers perform code injection, information disclosure, and even denial-of-service attacks against the gateway or the authentication virtual servers . Citrix confirmed that the aforementioned issues do not impact other virtual servers, such as load balancing and content switching virtual servers. Among the affected Citrix SD-WAN WANOP appliances include models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. The networking vendor also reiterated that these vulnerabilities were not connected to a previously fixed zero-day NetScaler flaw (tagged as CVE-2019-19781 ) that allowed bad actors to perform arbitrary code execution even without proper authentication. It also said there's no evidence
Critical Bugs and Backdoor Found in GeoVision's Fingerprint and Card Scanners

Critical Bugs and Backdoor Found in GeoVision's Fingerprint and Card Scanners

June 25, 2020Ravie Lakshmanan
GeoVision, a Taiwanese manufacturer of video surveillance systems and IP cameras, recently patched three of the four critical flaws impacting its card and fingerprint scanners that could've potentially allowed attackers to intercept network traffic and stage man-in-the-middle attacks. In a report shared exclusively with The Hacker News, enterprise security firm Acronis said it discovered the vulnerabilities last year following a routine security audit of a Singapore-based major retailer. "Malicious attackers can establish persistence on the network and spy on internal users, steal data — without ever getting detected," Acronis said. "They can reuse your fingerprint data to enter your home and/or personal devices, and photos can be easily reused by malicious actors to perpetrate identity theft based on biometric data." In all, the flaws affect at least 6 device families, with over 2,500 vulnerable devices discovered online across Brazil, US, Germany, Ta
Microsoft Releases June 2020 Security Patches For 129 Vulnerabilities

Microsoft Releases June 2020 Security Patches For 129 Vulnerabilities

June 09, 2020Mohit Kumar
Microsoft today released its June 2020 batch of software security updates that patches a total of 129 newly discovered vulnerabilities affecting various versions of Windows operating systems and related products. This is the third Patch Tuesday update since the beginning of the global Covid-19 outbreak, putting some extra pressure on security teams struggling to keep up with patch management while proceeding with caution that should not break anything during this lockdown season. The 129 bugs in the June 2020 bucket for sysadmins and billions of users include 11 critical vulnerabilities—all leading to remote code execution attacks—and 118 classified as important in severity, mostly leading to privilege escalation and spoofing attacks. According to the advisories Microsoft released today, hackers, fortunately, don't appear to be exploiting any of the zero-day vulnerabilities in the wild, and details for none of the flaws addressed this month was disclosed publicly before thi
An Undisclosed Critical Vulnerability Affect vBulletin Forums — Patch Now

An Undisclosed Critical Vulnerability Affect vBulletin Forums — Patch Now

May 11, 2020Mohit Kumar
If you are running an online discussion forum based on vBulletin software, make sure it has been updated to install a newly issued security patch that fixes a critical vulnerability. Maintainers of the vBulletin project recently announced an important patch update but didn't reveal any information on the underlying security vulnerability, identified as CVE-2020-12720 . Written in PHP programming language, vBulletin is a widely used Internet forum software that powers over 100,000 websites on the Internet, including forums for some Fortune 500 and many other top companies. Considering that the popular forum software is also one of the favorite targets for hackers, holding back details of the flaw could, of course, help many websites apply patches before hackers can exploit them to compromise sites, servers, and their user databases. However, just like previous times, researchers and hackers have already started reverse-engineering the software patch to locate and understan
Hackers Breach LineageOS, Ghost, DigiCert Servers Using SaltStack Vulnerability

Hackers Breach LineageOS, Ghost, DigiCert Servers Using SaltStack Vulnerability

May 03, 2020Ravie Lakshmanan
Days after cybersecurity researchers sounded the alarm over two critical vulnerabilities in the SaltStack configuration framework , a hacking campaign has already begun exploiting the flaws to breach servers of LineageOS, Ghost, and DigiCert. Tracked as CVE-2020-11651 and CVE-2020-11652 , the disclosed flaws could allow an adversary to execute arbitrary code on remote servers deployed in data centers and cloud environments. The issues were fixed by SaltStack in a release published on April 29th. "We expect that any competent hacker will be able to create 100% reliable exploits for these issues in under 24 hours," F-Secure researchers had previously warned in an advisory last week. LineageOS, a maker of an open-source operating system based on Android, said it detected the intrusion on May 2nd at around 8 pm Pacific Time. "Around 8 pm PST on May 2nd, 2020, an attacker used a CVE in our SaltStack master to gain access to our infrastructure," the company n
CISA Warns Patched Pulse Secure VPNs Could Still Expose Organizations to Hackers

CISA Warns Patched Pulse Secure VPNs Could Still Expose Organizations to Hackers

April 17, 2020Ravie Lakshmanan
The United States Cybersecurity and Infrastructure Security Agency (CISA) yesterday issued a fresh advisory alerting organizations to change all their Active Directory credentials as a defense against cyberattacks trying to leverage a known remote code execution (RCE) vulnerability in Pulse Secure VPN servers—even if they have already patched it. The warning comes three months after another CISA alert urging users and administrators to patch Pulse Secure VPN environments to thwart attacks exploiting the vulnerability. "Threat actors who successfully exploited CVE-2019-11510 and stole a victim organization's credentials will still be able to access — and move laterally through — that organization's network after the organization has patched this vulnerability if the organization did not change those stolen credentials," CISA said. CISA has also released a tool to help network administrators look for any indicators of compromise associated with the flaw.
Warning — Two Unpatched Critical 0-Day RCE Flaws Affect All Windows Versions

Warning — Two Unpatched Critical 0-Day RCE Flaws Affect All Windows Versions

March 23, 2020Mohit Kumar
Microsoft today issued a new security advisory warning billions of Windows users of two new critical, unpatched zero-day vulnerabilities that could let hackers remotely take complete control over targeted computers. According to Microsoft , both unpatched flaws are being used in limited, targeted attacks and impact all supported versions of the Windows operating system—including Windows 10, 8.1 and Server 2008, 2012, 2016, and 2019 editions, as well as Windows 7 for which Microsoft ended its support on January 14, 2020. Both vulnerabilities reside in the Windows Adobe Type Manager Library , a font parsing software that not only parses content when open with a 3rd-party software but also used by Windows Explorer to display the content of a file in the 'Preview Pane' or 'Details Pane' without having users to open it. The flaws exist in Microsoft Windows when the Adobe Type Manager Library improperly "handles a specially-crafted multi-master font - Adobe Type
Warning — Unpatched Critical 'Wormable' Windows SMBv3 Flaw Disclosed

Warning — Unpatched Critical 'Wormable' Windows SMBv3 Flaw Disclosed

March 11, 2020Ravie Lakshmanan
Shortly after releasing its monthly batch of security updates , Microsoft late yesterday separately issued an advisory warning billions of its Windows users of a new critical, unpatched, and wormable vulnerability affecting Server Message Block 3.0 ( SMBv3 ) network communication protocol. It appears Microsoft originally planned to fix the flaw as part of its March 2020 Patch Tuesday update only, but, for some reason, it pulled the plug at the last minute, which apparently did not stop a tech company from accidentally leaking the existence of the unpatched flaw. The yet-to-be patched flaw (tracked as CVE-2020-0796 ), if exploited successfully, could allow an attacker to execute arbitrary code on the target SMB Server or SMB Client. The belated acknowledgment from Microsoft led some researchers to call the bug " SMBGhost ." "To exploit the vulnerability against an SMB Server, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv3
GhostCat: New High-Risk Vulnerability Affects Servers Running Apache Tomcat

GhostCat: New High-Risk Vulnerability Affects Servers Running Apache Tomcat

February 28, 2020Swati Khandelwal
If your web server is running on Apache Tomcat, you should immediately install the latest available version of the server application to prevent hackers from taking unauthorized control over it. Yes, that's possible because all versions (9.x/8.x/7.x/6.x) of the Apache Tomcat released in the past 13 years have been found vulnerable to a new high-severity (CVSS 9.8) ' file read and inclusion bug '—which can be exploited in the default configuration. But it's more concerning because several proof-of-concept exploits ( 1 , 2 , 3 , 4  and more ) for this vulnerability have also been surfaced on the Internet, making it easy for anyone to hack into publicly accessible vulnerable web servers. Dubbed ' Ghostcat ' and tracked as CVE-2020-1938 , the flaw could let unauthenticated, remote attackers read the content of any file on a vulnerable web server and obtain sensitive configuration files or source code, or execute arbitrary code if the server allows file uploa
Install Latest Chrome Update to Patch 0-Day Bug Under Active Attacks

Install Latest Chrome Update to Patch 0-Day Bug Under Active Attacks

February 25, 2020Ravie Lakshmanan
Google yesterday released a new critical software update for its Chrome web browser for desktops that will be rolled out to Windows, Mac, and Linux users over the next few days. The latest Chrome 80.0.3987.122 includes security fixes for three new vulnerabilities , all of which have been marked 'HIGH' in severity, including one that (CVE-2020-6418) has been reportedly exploited in the wild. The brief description of the Chrome bugs, which impose a significant risk to your systems if left unpatched, are as follows: Integer overflow in ICU — Reported by André Bargull on 2020-01-22 Out of bounds memory access in streams (CVE-2020-6407) — Reported by Sergei Glazunov of Google Project Zero on 2020-01-27 Type confusion in V8 (CVE-2020-6418) — Reported by Clement Lecigne of Google's Threat Analysis Group on 2020-02-18 The Integer Overflow vulnerability was disclosed by André Bargull privately to Google last month, earning him $5,000 in rewards, while the other two
New OpenSMTPD RCE Flaw Affects Linux and OpenBSD Email Servers

New OpenSMTPD RCE Flaw Affects Linux and OpenBSD Email Servers

February 25, 2020Mohit Kumar
OpenSMTPD has been found vulnerable to yet another critical vulnerability that could allow remote attackers to take complete control over email servers running BSD or Linux operating systems. OpenSMTPD , also known as OpenBSD SMTP Server, is an open-source implementation of the Simple Mail Transfer Protocol (SMTP) to deliver messages on a local machine or to relay them to other SMTP servers. It was initially developed as part of the OpenBSD project but now comes pre-installed on many UNIX-based systems. Discovered by experts at Qualys Research Labs, who also reported a similar RCE flaw in the email server application last month, the latest out-of-bounds read issue, tracked as  CVE-2020-8794 , resides in a component of the OpenSMTPD's client-side code that was introduced nearly 5 years ago. Just like the previous issue, which attackers started exploiting in the wild just a day after its public disclosure, the new OpenSMTPD flaw could also let remote hackers execute arbit
Update Microsoft Windows Systems to Patch 99 New Security Flaws

Update Microsoft Windows Systems to Patch 99 New Security Flaws

February 11, 2020Mohit Kumar
A few hours after Adobe today released security updates for five of its widely-distributed software, Microsoft also issued its February 2020 Patch Tuesday edition with patches for a total of 99 new vulnerabilities. According to the advisories, 12 of the total issues patched by the tech giant this month are critical in severity, and the remaining 87 have been listed as important. Five of the bugs are listed as publicly known at the time of release, four of which are important in severity and one critical ( CVE-2020-0674 ) that is also listed as under active attack. Microsoft warned about this zero-day vulnerability in Internet Explorer (IE) browser last month when it released an advisory without releasing a patch for millions of its affected users. As explained previously, this flaw could allow a remote attacker to execute arbitrary code on targeted computers and take full control over them just by convincing victims into opening a maliciously crafted web page on the vulner
5 High Impact Flaws Affect Cisco Routers, Switches, IP Phones and Cameras

5 High Impact Flaws Affect Cisco Routers, Switches, IP Phones and Cameras

February 05, 2020Swati Khandelwal
Several Cisco-manufactured network equipments have been found vulnerable to five new security vulnerabilities that could allow hackers to take complete control over them, and subsequently, over the enterprise networks they power. Four of the five high-severity bugs are remote code execution issues affecting Cisco routers, switches, and IP cameras, whereas the fifth vulnerability is a denial-of-service issue affecting Cisco IP phones. Collectively dubbed ' CDPwn ,' the reported vulnerabilities reside in the various implementations of the Cisco Discovery Protocol (CDP) that comes enabled by default on virtually all Cisco devices and can not be turned OFF. Cisco Discovery Protocol (CDP) is an administrative protocol that works at Layer 2 of the Internet Protocol (IP) stack. The protocol has been designed to let devices discover information about other locally attached Cisco equipment in the same network. According to a report Armis research team shared with The Hacker N
Microsoft Azure Flaws Could Have Let Hackers Take Over Cloud Servers

Microsoft Azure Flaws Could Have Let Hackers Take Over Cloud Servers

January 30, 2020Mohit Kumar
Cybersecurity researchers at Check Point today disclosed details of two recently patched potentially dangerous vulnerabilities in Microsoft Azure services that, if exploited, could have allowed hackers to target several businesses that run their web and mobile apps on Azure. Azure App Service is a fully-managed integrated service that enables users to create web and mobile apps for any platform or device, and easily integrate them with SaaS solutions, on-premises apps to automate business processes. According to a report researchers shared with The Hacker News, the first security vulnerability ( CVE-2019-1234 ) is a request spoofing issue that affected Azure Stack, a hybrid cloud computing software solution by Microsoft. If exploited, the issue would have enabled a remote hacker to unauthorizedly access screenshots and sensitive information of any virtual machine running on Azure infrastructure—it doesn't matter if they're running on a shared, dedicated or isolated vir
Critical OpenSMTPD Bug Opens Linux and OpenBSD Mail Servers to Hackers

Critical OpenSMTPD Bug Opens Linux and OpenBSD Mail Servers to Hackers

January 30, 2020Wang Wei
Cybersecurity researchers have discovered a new critical vulnerability ( CVE-2020-7247 ) in the OpenSMTPD email server that could allow remote attackers to take complete control over BSD and many Linux based servers. OpenSMTPD is an open-source implementation of the server-side SMTP protocol that was initially developed as part of the OpenBSD project but now comes pre-installed on many UNIX-based systems. According to Qualys Research Labs, who discovered this vulnerability, the issue resides in the OpenSMTPD's sender address validation function, called smtp_mailaddr(), which can be exploited to execute arbitrary shell commands with elevated root privileges on a vulnerable server just by sending specially crafted SMTP messages to it. The flaw affects OpenBSD version 6.6 and works against the default configuration for both, the locally enabled interface as well as remotely if the daemon has been enabled to listen on all interfaces and accepts external mail. "Exploit
PoC Exploits Released for Citrix ADC and Gateway RCE Vulnerability

PoC Exploits Released for Citrix ADC and Gateway RCE Vulnerability

January 11, 2020Wang Wei
It's now or never to prevent your enterprise servers running vulnerable versions of Citrix application delivery, load balancing, and Gateway solutions from getting hacked by remote attackers. Why the urgency? Earlier today, multiple groups publicly released weaponized proof-of-concept exploit code [ 1 , 2 ] for a recently disclosed remote code execution vulnerability in Citrix's NetScaler ADC and Gateway products that could allow anyone to leverage them to take full control over potential enterprise targets. Just before the last Christmas and year-end holidays, Citrix announced that its Citrix Application Delivery Controller (ADC) and Citrix Gateway are vulnerable to a critical path traversal flaw (CVE-2019-19781) that could allow an unauthenticated attacker to perform arbitrary code execution on vulnerable servers. Citrix confirmed that the flaw affects all supported version of the software, including: Citrix ADC and Citrix Gateway version 13.0 all supported build
Dozens of Severe Flaws Found in 4 Popular Open Source VNC Software

Dozens of Severe Flaws Found in 4 Popular Open Source VNC Software

November 23, 2019Swati Khandelwal
Four popular open-source VNC remote desktop applications have been found vulnerable to a total of 37 security vulnerabilities, many of which went unnoticed for the last 20 years and most severe could allow remote attackers to compromise a targeted system. VNC (virtual network computing) is an open source graphical desktop sharing protocol based on RFB (Remote FrameBuffer) that allows users to remotely control another computer, similar to Microsoft's RDP service. The implementation of the VNC system includes a "server component," which runs on the computer sharing its desktop, and a "client component," which runs on the computer that will access the shared desktop. In other words, VNC allows you to use your mouse and keyboard to work on a remote computer as if you are sitting in front of it. There are numerous VNC applications, both free and commercial, compatible with widely used operating systems like Linux, macOS, Windows, and Android. Considering
New WhatsApp Bug Could Have Let Hackers Secretly Install Spyware On Your Devices

New WhatsApp Bug Could Have Let Hackers Secretly Install Spyware On Your Devices

November 16, 2019Mohit Kumar
The recent controversies surrounding the WhatsApp hacking haven't yet settled, and the world's most popular messaging platform could be in the choppy waters once again. The Hacker News has learned that last month WhatsApp quietly patched yet another critical vulnerability in its app that could have allowed attackers to remotely compromise targeted devices and potentially steal secured chat messages and files stored on them. The vulnerability — tracked as CVE-2019-11931 — is a stack-based buffer overflow issue that resided in the way previous WhatsApp versions parse the elementary stream metadata of an MP4 file, resulting in denial-of-service or remote code execution attacks. To remotely exploit the vulnerability, all an attacker needs is the phone number of targeted users and send them a maliciously crafted MP4 file over WhatsApp, which eventually can be programmed to install a malicious backdoor or spyware app on the compromised devices silently. The vulnerability
Watch Out IT Admins! Two Unpatched Critical RCE Flaws Disclosed in rConfig

Watch Out IT Admins! Two Unpatched Critical RCE Flaws Disclosed in rConfig

November 03, 2019Swati Khandelwal
If you're using the popular rConfig network configuration management utility to protect and manage your network devices, here we have an important and urgent warning for you. A cybersecurity researcher has recently published details and proof-of-concept exploits for two unpatched, critical remote code execution vulnerabilities in the rConfig utility, at least one of which could allow unauthenticated remote attackers to compromise targeted servers, and connected network devices. Written in native PHP, rConfig is a free, open source network device configuration management utility that allows network engineers to configure and take frequent configuration snapshots of their network devices. According to the project website, rConfig is being used to manage more than 3.3 million network devices, including switches, routers, firewalls, load-balancer, WAN optimizers. What's more worrisome? Both vulnerabilities affect all versions of rConfig, including the latest rConfig ver
Online Courses and Software

Sign up for cybersecurity newsletter and get latest news updates delivered straight to your inbox daily.