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Last Years Open Source - Tomorrow's Vulnerabilities

Last Years Open Source - Tomorrow's Vulnerabilities

Nov 01, 2022
Linus Torvalds, the creator of Linux and Git, has his own law in software development, and it goes like this: " given enough eyeballs, all bugs are shallow ." This phrase puts the finger on the very principle of open source: the more, the merrier - if the code is easily available for anyone and everyone to fix bugs, it's pretty safe. But is it? Or is the saying "all bugs are shallow" only true for  shallow  bugs and not ones that lie deeper? It turns out that security flaws in open source can be harder to find than we thought. Emil WĂĄreus, Head of R&D at  Debricked , took it upon himself to look deeper into the community's performance. As the data scientist he is, he, of course, asked the data:  how good is the open source community at finding vulnerabilities in a timely manner ? The thrill of the (vulnerability) hunt Finding open source vulnerabilities is typically done by the maintainers of the open source project, users, auditors, or external secur
Hackers Actively Exploiting Cisco AnyConnect and GIGABYTE Drivers Vulnerabilities

Hackers Actively Exploiting Cisco AnyConnect and GIGABYTE Drivers Vulnerabilities

Oct 26, 2022
Cisco has warned of active exploitation attempts targeting a pair of two-year-old security flaws in the Cisco AnyConnect Secure Mobility Client for Windows. Tracked as  CVE-2020-3153  (CVSS score: 6.5) and  CVE-2020-3433  (CVSS score: 7.8), the vulnerabilities could enable local authenticated attackers to perform DLL hijacking and copy arbitrary files to system directories with elevated privileges.  While CVE-2020-3153 was addressed by Cisco in February 2020, a fix for CVE-2020-3433 was shipped in August 2020. "In October 2022, the Cisco Product Security Incident Response Team became aware of additional attempted exploitation of this vulnerability in the wild," the networking equipment maker said in an updated advisory. "Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability." The alert comes as the U.S. Cybersecurity and Infrastructure Security Agency (CISA) moved to add the two flaws to its K
Making Sense of Operational Technology Attacks: The Past, Present, and Future

Making Sense of Operational Technology Attacks: The Past, Present, and Future

Mar 21, 2024Operational Technology / SCADA Security
When you read reports about cyber-attacks affecting operational technology (OT), it's easy to get caught up in the hype and assume every single one is sophisticated. But are OT environments all over the world really besieged by a constant barrage of complex cyber-attacks? Answering that would require breaking down the different types of OT cyber-attacks and then looking back on all the historical attacks to see how those types compare.  The Types of OT Cyber-Attacks Over the past few decades, there has been a growing awareness of the need for improved cybersecurity practices in IT's lesser-known counterpart, OT. In fact, the lines of what constitutes a cyber-attack on OT have never been well defined, and if anything, they have further blurred over time. Therefore, we'd like to begin this post with a discussion around the ways in which cyber-attacks can either target or just simply impact OT, and why it might be important for us to make the distinction going forward. Figure 1 The Pu
VMware Releases Patch for Critical RCE Flaw in Cloud Foundation Platform

VMware Releases Patch for Critical RCE Flaw in Cloud Foundation Platform

Oct 26, 2022
VMware on Tuesday shipped security updates to address a critical security flaw in its VMware Cloud Foundation product. Tracked as CVE-2021-39144, the issue has been rated 9.8 out of 10 on the CVSS vulnerability scoring system, and relates to a remote code execution vulnerability via XStream open source library. "Due to an unauthenticated endpoint that leverages XStream for input serialization in VMware Cloud Foundation (NSX-V), a malicious actor can get remote code execution in the context of 'root' on the appliance," the company  said  in an advisory. In light of the severity of the flaw and its relatively low bar for exploitation, the Palo Alto-based virtualization services provider has also made available a  patch  for end-of-life products. Also addressed by VMware as part of the update is CVE-2022-31678 (CVSS score: 5.3), an XML External Entity ( XXE ) vulnerability that could be exploited to result in a denial-of-service (DoS) condition or unauthorized info
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Automated remediation solutions are crucial for security

websiteWing SecurityShadow IT / SaaS Security
Especially when it comes to securing employees' SaaS usage, don't settle for a longer to-do list. Auto-remediation is key to achieving SaaS security.
22-Year-Old Vulnerability Reported in Widely Used SQLite Database Library

22-Year-Old Vulnerability Reported in Widely Used SQLite Database Library

Oct 25, 2022
A high-severity vulnerability has been disclosed in the SQLite database library, which was introduced as part of a code change dating all the way back to October 2000 and could enable attackers to crash or control programs. Tracked as  CVE-2022-35737  (CVSS score: 7.5), the 22-year-old issue affects SQLite versions  1.0.12  through 3.39.1, and has been addressed in  version 3.39.2  released on July 21, 2022. "CVE-2022-35737 is  exploitable  on 64-bit systems, and exploitability depends on how the program is compiled," Trail of Bits researcher Andreas Kellas  said  in a technical write-up published today. "Arbitrary code execution is confirmed when the library is compiled without stack canaries, but unconfirmed when stack canaries are present, and denial-of-service is confirmed in all cases." Programmed in C, SQLite is the most widely used database engine , included by default in Android, iOS, Windows, and macOS, as well as popular web browsers such as Googl
Apple Releases Patch for New Actively Exploited iOS and iPadOS Zero-Day Vulnerability

Apple Releases Patch for New Actively Exploited iOS and iPadOS Zero-Day Vulnerability

Oct 25, 2022
Tech giant Apple on Monday rolled out updates to remediate a zero-day flaw in iOS and iPadOS that it said has been actively exploited in the wild. The weakness, given the identifier CVE-2022-42827 , has been described as an out-of-bounds write issue in the Kernel, which could be abused by a rogue application to execute arbitrary code with the highest privileges. Successful exploitation of out-of-bounds write flaws, which typically occur when a program attempts to write data to a memory location that's outside of the bounds of what it is allowed to access, can result in corruption of data, a crash, or execution of unauthorized code. The iPhone maker said it addressed the bug with improved bounds checking, while crediting an anonymous researcher for reporting the vulnerability. As is usually the case with actively exploited zero-day flaws, Apple refrained from sharing more specifics about the shortcoming other than acknowledging that it's "aware of a report that this i
Multiple Campaigns Exploit VMware Vulnerability to Deploy Crypto Miners and Ransomware

Multiple Campaigns Exploit VMware Vulnerability to Deploy Crypto Miners and Ransomware

Oct 21, 2022
A now-patched vulnerability in VMware Workspace ONE Access has been observed being exploited to deliver both cryptocurrency miners and ransomware on affected machines. "The attacker intends to utilize a victim's resources as much as possible, not only to install RAR1Ransom for extortion, but also to spread GuardMiner to collect cryptocurrency," Fortinet FortiGuard Labs researcher Cara Lin  said  in a Thursday report. The issue, tracked as CVE-2022-22954 (CVSS score: 9.8), concerns a remote code execution vulnerability that stems from a case of server-side template injection. Although the shortcoming was addressed by the virtualization services provider in April 2022, it has since come under active exploitation in the wild. Fortinet said it observed in August 2022 attacks that sought to weaponize the flaw to deploy the  Mirai botnet  on Linux devices as well as the RAR1Ransom and  GuardMiner , a variant of the XMRig Monero miner. The Mirai sample is retrieved fr
Hackers Started Exploiting Critical "Text4Shell" Apache Commons Text Vulnerability

Hackers Started Exploiting Critical "Text4Shell" Apache Commons Text Vulnerability

Oct 21, 2022
WordPress security company Wordfence on Thursday said it started detecting exploitation attempts targeting the newly disclosed flaw in Apache Commons Text on October 18, 2022. The vulnerability, tracked as  CVE-2022-42889  aka Text4Shell , has been assigned a severity ranking of 9.8 out of a possible 10.0 on the CVSS scale and affects versions 1.5 through 1.9 of the library. It's also similar to the now infamous  Log4Shell  vulnerability in that the  issue  is rooted in the manner  string substitutions  carried out during  DNS, script, and URL lookups  could lead to the execution of arbitrary code on susceptible systems when passing untrusted input. "The attacker can send a crafted payload remotely using 'script,' 'dns,' and 'url' lookups to achieve arbitrary remote code execution," the Zscaler ThreatLabZ team explained . A  successful exploitation of the flaw  can enable a threat actor to open a reverse shell connection with the vulnerable
Critical RCE Vulnerability Discovered in Popular Cobalt Strike Hacking Software

Critical RCE Vulnerability Discovered in Popular Cobalt Strike Hacking Software

Oct 18, 2022
HelpSystems, the company behind the Cobalt Strike software platform, has released an out-of-band security update to address a remote code execution vulnerability that could allow an attacker to take control of targeted systems. Cobalt Strike is a commercial red-team framework that's mainly used for adversary simulation, but cracked versions of the software have been  actively   abused  by ransomware operators and espionage-focused advanced persistent threat (APT) groups alike. The  post-exploitation tool  consists of a team server, which functions as a command-and-control (C2) component, and a beacon, the default malware used to create a connection to the team server and drop next-stage payloads. The issue, tracked as  CVE-2022-42948 , affects Cobalt Strike version 4.7.1, and stems from an incomplete patch released on September 20, 2022, to rectify a cross-site scripting ( XSS ) vulnerability ( CVE-2022-39197 ) that could lead to remote code execution. "The XSS vulnerabi
Researchers Say Microsoft Office 365 Uses Broken Email Encryption to Secure Messages

Researchers Say Microsoft Office 365 Uses Broken Email Encryption to Secure Messages

Oct 17, 2022
New research has disclosed what's being called a security vulnerability in Microsoft 365 that could be exploited to infer message contents due to the use of a broken cryptographic algorithm. "The [Office 365 Message Encryption] messages are encrypted in insecure Electronic Codebook ( ECB ) mode of operation," Finnish cybersecurity company WithSecure  said  in a report published last week. Office 365 Message Encryption (OME) is a security mechanism used to send and receive encrypted email messages between users inside and outside an organization without revealing anything about the communications themselves. A consequence of the newly disclosed issue is that rogue third-parties gaining access to the encrypted email messages may be able to decipher the messages, effectively breaking confidentiality protections. Electronic Codebook is one of the simplest modes of encryption wherein each message block is encoded separately by a key, meaning identical plaintext blocks wi
Critical Bug in Siemens SIMATIC PLCs Could Let Attackers Steal Cryptographic Keys

Critical Bug in Siemens SIMATIC PLCs Could Let Attackers Steal Cryptographic Keys

Oct 12, 2022
A vulnerability in Siemens Simatic programmable logic controller (PLC) can be exploited to retrieve the hard-coded, global private cryptographic keys and seize control of the devices. "An attacker can use these keys to perform multiple advanced attacks against Siemens SIMATIC devices and the related  TIA Portal , while bypassing all four of its  access level protections ," industrial cybersecurity company Claroty  said  in a new report. "A malicious actor could use this secret information to compromise the entire SIMATIC S7-1200/1500 product line in an irreparable way." The critical vulnerability, assigned the identifier  CVE-2022-38465 , is rated 9.3 on the CVSS scoring scale and has been addressed by Siemens as part of security updates issued on October 11, 2022. The list of impacted products and versions is below - SIMATIC Drive Controller family (all versions before 2.9.2) SIMATIC ET 200SP Open Controller CPU 1515SP PC2, including SIPLUS variants (all
Fortinet Warns of Active Exploitation of Newly Discovered Critical Auth Bypass Bug

Fortinet Warns of Active Exploitation of Newly Discovered Critical Auth Bypass Bug

Oct 11, 2022
Fortinet on Monday revealed that the newly patched critical security vulnerability impacting its firewall and proxy products is being actively exploited in the wild. Tracked as  CVE-2022-40684  (CVSS score: 9.6), the flaw relates to an authentication bypass in FortiOS, FortiProxy, and FortiSwitchManager that could allow a remote attacker to perform unauthorized operations on the administrative interface via specially crafted HTTP(S) requests. "Fortinet is aware of an instance where this vulnerability was exploited, and recommends immediately validating your systems against the following indicator of compromise in the device's logs: user='Local_Process_Access,'" the company  noted  in an advisory. The list of impacted devices is below - FortiOS version 7.2.0 through 7.2.1 FortiOS version 7.0.0 through 7.0.6 FortiProxy version 7.2.0 FortiProxy version 7.0.0 through 7.0.6 FortiSwitchManager version 7.2.0, and FortiSwitchManager version 7.0.0 Updates hav
Fortinet Warns of New Auth Bypass Flaw Affecting FortiGate and FortiProxy

Fortinet Warns of New Auth Bypass Flaw Affecting FortiGate and FortiProxy

Oct 07, 2022
Fortinet has privately warned its customers of a security flaw affecting FortiGate firewalls and FortiProxy web proxies that could potentially allow an attacker to perform unauthorized actions on susceptible devices. Tracked as CVE-2022-40684 (CVSS score: 9.6), the critical flaw relates to an authentication bypass vulnerability that may permit an unauthenticated adversary to carry out arbitrary operations on the administrative interface via a specially crafted HTTP(S) request. The issue impacts the following versions, and has been addressed in FortiOS versions  7.0.7  and  7.2.2 , and FortiProxy versions 7.0.7 and 7.2.1 released this week: FortiOS - From 7.0.0 to 7.0.6 and from 7.2.0 to 7.2.1 FortiProxy - From 7.0.0 to 7.0.6 and 7.2.0 "Due to the ability to exploit this issue remotely, Fortinet is strongly recommending all customers with the vulnerable versions to perform an immediate upgrade," the company  cautioned  in an alert shared by a security researcher w
Details Released for Recently Patched new macOS Archive Utility Vulnerability

Details Released for Recently Patched new macOS Archive Utility Vulnerability

Oct 06, 2022
Security researchers have shared details about a now-addressed security flaw in Apple's macOS operating system that could be potentially exploited to run malicious applications in a manner that can bypass Apple's security measures. The vulnerability, tracked as  CVE-2022-32910 , is rooted in the built-in Archive Utility and "could lead to the execution of an unsigned and unnotarized application without displaying security prompts to the user, by using a specially crafted archive," Apple device management firm Jamf said in an analysis. Following responsible disclosure on May 31, 2022, Apple addressed the issue as part of  macOS Big Sur 11.6.8  and  Monterey 12.5  released on July 20, 2022. The tech giant, for its part, also revised the earlier-issued advisories as of October 4 to add an entry for the flaw. Apple described the bug as a logic issue that could allow an archive file to get around Gatekeeper checks, which is designed so as to ascertain that only trust
Researchers Report Supply Chain Vulnerability in Packagist PHP Repository

Researchers Report Supply Chain Vulnerability in Packagist PHP Repository

Oct 04, 2022
Researchers have disclosed details about a now-patched high-severity security flaw in Packagist, a PHP software package repository, that could have been exploited to mount software supply chain attacks. "This vulnerability allows gaining control of  Packagist ," SonarSource researcher Thomas Chauchefoin  said  in a report shared with The Hacker News. Packagist is used by the PHP package manager Composer to determine and download software dependencies that are included by developers in their projects. The disclosure comes as planting malware in open source repositories is turning into an attractive conduit for performing  software supply chain attacks . Tracked as  CVE-2022-24828  (CVSS score: 8.8), the  issue  has been described as a case of command injection and is linked to another similar Composer bug ( CVE-2021-29472 ) that came to light in April 2021, suggesting an inadequate patch. "An attacker controlling a Git or Mercurial repository explicitly listed by UR
State-Sponsored Hackers Likely Exploited MS Exchange 0-Days Against ~10 Organizations

State-Sponsored Hackers Likely Exploited MS Exchange 0-Days Against ~10 Organizations

Oct 01, 2022
Microsoft on Friday disclosed that a single activity group in August 2022 achieved initial access and breached Exchange servers by chaining the  two newly disclosed zero-day flaws  in a limited set of attacks aimed at less than 10 organizations globally. "These attacks installed the Chopper web shell to facilitate hands-on-keyboard access, which the attackers used to perform Active Directory reconnaissance and data exfiltration," the Microsoft Threat Intelligence Center (MSTIC)  said  in a new analysis. The weaponization of the vulnerabilities is expected to ramp up in the coming days, Microsoft further warned, as malicious actors co-opt the exploits into their toolkits, including deploying ransomware, due to the "highly privileged access Exchange systems confer onto an attacker." The tech giant attributed the ongoing attacks with medium confidence to a state-sponsored organization, adding it was already investigating these attacks when the Zero Day Initiative d
CISA Warns of Hackers Exploiting Critical Atlassian Bitbucket Server Vulnerability

CISA Warns of Hackers Exploiting Critical Atlassian Bitbucket Server Vulnerability

Oct 01, 2022
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday  added  a recently disclosed critical flaw impacting Atlassian's Bitbucket Server and Data Center to the Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. Tracked as  CVE-2022-36804 , the issue relates to a command injection vulnerability that could allow malicious actors to gain arbitrary code execution on susceptible installations by sending a specially crafted HTTP request. Successful exploitation, however, banks on the prerequisite that the attacker already has access to a public repository or possesses read permissions to a private Bitbucket repository. "All versions of Bitbucket Server and Datacenter released after 6.10.17 including 7.0.0 and newer are affected, this means that all instances that are running any versions between 7.0.0 and 8.3.0 inclusive are affected by this vulnerability," Atlassian  noted  in a late August 2022 advisory. CISA did
New Malware Campaign Targeting Job Seekers with Cobalt Strike Beacons

New Malware Campaign Targeting Job Seekers with Cobalt Strike Beacons

Sep 30, 2022
A social engineering campaign leveraging job-themed lures is weaponizing a years-old remote code execution flaw in Microsoft Office to deploy Cobalt Strike beacons on compromised hosts. "The payload discovered is a leaked version of a Cobalt Strike beacon," Cisco Talos researchers Chetan Raghuprasad and Vanja Svajcer  said  in a new analysis published Wednesday. "The beacon configuration contains commands to perform targeted process injection of arbitrary binaries and has a high reputation domain configured, exhibiting the redirection technique to masquerade the beacon's traffic." The malicious activity, discovered in August 2022, attempts to exploit the vulnerability  CVE-2017-0199 , a remote code execution issue in Microsoft Office, that allows an attacker to take control of an affected system. The entry vector for the attack is a phishing email containing a Microsoft Word attachment that employs job-themed lures for roles in the U.S. government and Publ
Microsoft Confirms 2 New Exchange Zero-Day Flaws Being Used in the Wild

Microsoft Confirms 2 New Exchange Zero-Day Flaws Being Used in the Wild

Sep 30, 2022
Microsoft officially disclosed it investigating two zero-day security vulnerabilities impacting Exchange Server 2013, 2016, and 2019 following  reports of in-the-wild exploitation . "The first vulnerability, identified as  CVE-2022-41040 , is a Server-Side Request Forgery ( SSRF ) vulnerability, while the second, identified as  CVE-2022-41082 , allows remote code execution (RCE) when PowerShell is accessible to the attacker," the tech giant  said . The company also confirmed that it's aware of "limited targeted attacks" weaponizing the flaws to obtain initial access to targeted systems, but emphasized that authenticated access to the vulnerable Exchange Server is required to achieve successful exploitation. The attacks detailed by Microsoft show that the two flaws are stringed together in an exploit chain, with the SSRF bug enabling an authenticated adversary to remotely trigger arbitrary code execution. The Redmond-based company further emphasized that it
WARNING: New Unpatched Microsoft Exchange Zero-Day Under Active Exploitation

WARNING: New Unpatched Microsoft Exchange Zero-Day Under Active Exploitation

Sep 30, 2022
Security researchers are warning of previously undisclosed flaws in fully patched Microsoft Exchange servers being exploited by malicious actors in real-world attacks to achieve remote code execution on affected systems. The advisory comes from Vietnamese cybersecurity company GTSC, which discovered the shortcomings as part of its security monitoring and incident response efforts in August 2022. The two vulnerabilities, which are formally yet to be assigned CVE identifiers, are being  tracked  by the Zero Day Initiative as  ZDI-CAN-18333  (CVSS score: 8.8) and  ZDI-CAN-18802  (CVSS score: 6.3). GTSC said that successful exploitation of the flaws could be abused to gain a foothold in the victim's systems, enabling adversaries to drop web shells and carry out lateral movements across the compromised network. "We detected web shells, mostly obfuscated, being dropped to Exchange servers," the company  noted . "Using the user-agent, we detected that the attacker use
5 Network Security Threats And How To Protect Yourself

5 Network Security Threats And How To Protect Yourself

Sep 26, 2022
Cybersecurity today matters so much because of everyone's dependence on technology, from collaboration, communication and collecting data to e-commerce and entertainment. Every organisation that needs to deliver services to their customers and employees must protect their IT 'network' - all the apps and connected devices from laptops and desktops to servers and smartphones. While traditionally, these would all live on one "corporate network," - networks today are often just made up of the devices themselves, and how they're connected: across the internet, sometimes via VPNs, to the homes and cafes people work from, to the cloud and data centres where services live. So what threats does this modern network face? Let's look at them in more detail. #1 Misconfiguration According to recent research by  Verizon , misconfiguration errors and misuse now make up 14% of breaches. Misconfiguration errors occur when configuring a system or application so that it&
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