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Researchers Uncover Windows Flaws Granting Hackers Rootkit-Like Powers

Researchers Uncover Windows Flaws Granting Hackers Rootkit-Like Powers

Apr 22, 2024 Rootkit / Software Security
New research has found that the DOS-to-NT path conversion process could be exploited by threat actors to achieve rootkit-like capabilities to conceal and impersonate files, directories, and processes. "When a user executes a function that has a path argument in Windows, the DOS path at which the file or folder exists is converted to an NT path," SafeBreach security researcher Or Yair  said  in an analysis, which was  presented  at the Black Hat Asia conference last week. "During this conversion process, a known issue exists in which the function removes trailing dots from any path element and any trailing spaces from the last path element. This action is completed by most user-space APIs in Windows." These so-called MagicDot paths allow for rootkit-like functionality that's accessible to any unprivileged user, who could then weaponize them to carry out a series of malicious actions without having admin permissions and remain undetected. They include the ab
Palo Alto Networks Discloses More Details on Critical PAN-OS Flaw Under Attack

Palo Alto Networks Discloses More Details on Critical PAN-OS Flaw Under Attack

Apr 20, 2024 Vulnerability / Network Security
Palo Alto Networks has shared more details of a critical security flaw impacting PAN-OS that has come under active exploitation in the wild by malicious actors. The company described the vulnerability, tracked as  CVE-2024-3400  (CVSS score: 10.0), as "intricate" and a combination of two bugs in versions PAN-OS 10.2, PAN-OS 11.0, and PAN-OS 11.1 of the software. "In the first one, the GlobalProtect service did not sufficiently validate the session ID format before storing them. This enabled the attacker to store an empty file with the attacker's chosen filename," Chandan B. N., senior director of product security at Palo Alto Networks,  said . "The second bug (trusting that the files were system-generated) used the filenames as part of a command."  It's worth noting that while neither of the issues are critical enough on their own, when chained together, they could lead to unauthenticated remote shell command execution. Palo Alto Networks sai
Critical Update: CrushFTP Zero-Day Flaw Exploited in Targeted Attacks

Critical Update: CrushFTP Zero-Day Flaw Exploited in Targeted Attacks

Apr 20, 2024 Vulnerability / Endpoint Security
Users of the CrushFTP enterprise file transfer software are being urged to update to the latest version following the discovery of a security flaw that has come under targeted exploitation in the wild. "CrushFTP v11 versions below 11.1 have a vulnerability where users can escape their VFS and download system files," CrushFTP  said  in an advisory released Friday. "This has been patched in v11.1.0." That said, customers who are operating their CrushFTP instances within a  DMZ  ( demilitarized zone ) restricted environment are protected against the attacks. Simon Garrelou of Airbus CERT has been credited with discovering and reporting the flaw. It has yet to be assigned a CVE identifier. Cybersecurity company CrowdStrike, in a post shared on Reddit, said it has observed an exploit for the flaw being used in the wild in a "targeted fashion." These intrusions are said to have mainly targeted U.S. entities, with the intelligence gathering activity suspe
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Cybersecurity CPEs: Unraveling the What, Why & How

Cybersecurity CPEs: Unraveling the What, Why & How

Jun 10, 2024Cybersecurity / Exposure Management
Staying Sharp: Cybersecurity CPEs Explained Perhaps even more so than in other professional domains, cybersecurity professionals constantly face new threats. To ensure you stay on top of your game, many certification programs require earning Continuing Professional Education (CPE) credits. CPEs are essentially units of measurement used to quantify the time and effort professionals spend on maintaining and enhancing skills and knowledge in the field of cybersecurity, and they act as points that demonstrate a commitment to staying current. CPEs are best understood in terms of other professions: just like medical, legal and even CPA certifications require continuing education to stay up-to-date on advancements and industry changes, cybersecurity professionals need CPEs to stay informed about the latest hacking tactics and defense strategies. CPE credits are crucial for maintaining certifications issued by various cybersecurity credentialing organizations, such as (ISC)², ISACA, and C
Critical Atlassian Flaw Exploited to Deploy Linux Variant of Cerber Ransomware

Critical Atlassian Flaw Exploited to Deploy Linux Variant of Cerber Ransomware

Apr 17, 2024 Encryption / Vulnerability
Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware. The attacks leverage  CVE-2023-22518  (CVSS score: 9.1), a critical security vulnerability impacting the Atlassian Confluence Data Center and Server that allows an unauthenticated attacker to reset Confluence and create an administrator account. Armed with this access, a threat actor could take over affected systems, leading to a full loss of confidentiality, integrity, and availability. According to cloud security firm Cado, financially motivated cybercrime groups have been observed abusing the newly created admin account to install the Effluence web shell plugin and allow for the execution of arbitrary commands on the host. "The attacker uses this web shell to download and run the primary Cerber payload," Nate Bill, threat intelligence engineer at Cado,  said  in a report shared with The Hacker News. "In a default install, the Confluence applicati
Hackers Exploit Fortinet Flaw, Deploy ScreenConnect, Metasploit in New Campaign

Hackers Exploit Fortinet Flaw, Deploy ScreenConnect, Metasploit in New Campaign

Apr 17, 2024 Vulnerability / Web Application Firewall
Cybersecurity researchers have discovered a new campaign that's exploiting a recently disclosed security flaw in Fortinet FortiClient EMS devices to deliver ScreenConnect and Metasploit Powerfun payloads. The activity entails the exploitation of  CVE-2023-48788  (CVSS score: 9.3), a critical SQL injection flaw that could permit an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests. Cybersecurity firm Forescout is  tracking  the campaign under the codename  Connect:fun  owing to the use of ScreenConnect and Powerfun for post-exploitation. The intrusion, which targeted an unnamed media company that had its vulnerable FortiClient EMS device exposed to the internet, took place shortly after the  release  of a proof-of-concept (PoC) exploit for the flaw on March 21, 2024. Over the next couple of days, the unknown adversary was observed leveraging the flaw to unsuccessfully download ScreenConnect and then install the remote desktop s
Cisco Warns of Global Surge in Brute-Force Attacks Targeting VPN and SSH Services

Cisco Warns of Global Surge in Brute-Force Attacks Targeting VPN and SSH Services

Apr 17, 2024 IoT Security / Network Security
Cisco is warning about a global surge in brute-force attacks targeting various devices, including Virtual Private Network (VPN) services, web application authentication interfaces, and SSH services, since at least March 18, 2024. "These attacks all appear to be originating from TOR exit nodes and a range of other anonymizing tunnels and proxies," Cisco Talos  said . Successful attacks could pave the way for unauthorized network access, account lockouts, or denial-of-service conditions, the cybersecurity company added. The attacks, said to be broad and opportunistic, have been observed targeting the below devices - Cisco Secure Firewall VPN  Check Point VPN Fortinet VPN SonicWall VPN RD Web Services  MikroTik  Draytek  Ubiquiti  Cisco Talos described the brute-forcing attempts as using both generic and valid usernames for specific organizations, with the attacks indiscriminately targeting a wide range of sectors across geographies. The source IP addresses for
AWS, Google, and Azure CLI Tools Could Leak Credentials in Build Logs

AWS, Google, and Azure CLI Tools Could Leak Credentials in Build Logs

Apr 16, 2024 Cloud Security / DevSecOps
New cybersecurity research has found that command-line interface (CLI) tools from Amazon Web Services (AWS) and Google Cloud can expose sensitive credentials in build logs, posing significant risks to organizations. The vulnerability has been codenamed  LeakyCLI  by cloud security firm Orca. "Some commands on Azure CLI, AWS CLI, and Google Cloud CLI can expose sensitive information in the form of environment variables, which can be collected by adversaries when published by tools such as GitHub Actions," security researcher Roi Nisimi  said  in a report shared with The Hacker News. Microsoft has since  addressed  the issue as part of security updates released in November 2023, assigned it the CVE identifier CVE-2023-36052 (CVSS score: 8.6). The idea, in a nutshell, has to do with how the CLI commands such as could be used to show (pre-)defined environment variables and output to Continuous Integration and Continuous Deployment (CI/CD) logs. A list of such commands spann
Widely-Used PuTTY SSH Client Found Vulnerable to Key Recovery Attack

Widely-Used PuTTY SSH Client Found Vulnerable to Key Recovery Attack

Apr 16, 2024 Encryption / Network Security
The maintainers of the  PuTTY Secure Shell (SSH) and Telnet client  are alerting users of a critical vulnerability impacting versions from 0.68 through 0.80 that could be exploited to achieve full recovery of NIST P-521 (ecdsa-sha2-nistp521) private keys. The flaw has been assigned the CVE identifier  CVE-2024-31497 , with the discovery credited to researchers Fabian Bäumer and Marcus Brinkmann from the Ruhr University Bochum. "The effect of the vulnerability is to compromise the private key," the PuTTY project  said  in an advisory. "An attacker in possession of a few dozen signed messages and the public key has enough information to recover the private key, and then forge signatures as if they were from you, allowing them to (for instance) log in to any servers you use that key for." However, in order to obtain the signatures, an attacker will have to compromise the server for which the key is used to authenticate to. In a message posted on the Open Source
Intel and Lenovo BMCs Contain Unpatched Lighttpd Server Flaw

Intel and Lenovo BMCs Contain Unpatched Lighttpd Server Flaw

Apr 15, 2024 Firmware Security / Vulnerability
A security flaw impacting the Lighttpd web server used in baseboard management controllers ( BMCs ) has remained unpatched by device vendors like Intel and Lenovo, new findings from Binarly reveal. While the original shortcoming was  discovered and patched  by the Lighttpd maintainers way back in August 2018 with  version 1.4.51 , the lack of a CVE identifier or an advisory meant that it was overlooked by developers of AMI MegaRAC BMC, ultimately ending up in products made by Intel and Lenovo. Lighttpd  (pronounced "Lighty") is an open-source high-performance web server software designed for speed, security, and flexibility, while optimized for high-performance environments without consuming a lot of system resources. The silent fix for Lighttpd concerns an out-of-bounds read vulnerability that could be exploited to exfiltrate sensitive data, such as process memory addresses, thereby allowing threat actors to bypass crucial security mechanisms like address space layout ra
AI Copilot: Launching Innovation Rockets, But Beware of the Darkness Ahead

AI Copilot: Launching Innovation Rockets, But Beware of the Darkness Ahead

Apr 15, 2024 Secure Coding / Artificial Intelligence
Imagine a world where the software that powers your favorite apps, secures your online transactions, and keeps your digital life could be outsmarted and taken over by a cleverly disguised piece of code. This isn't a plot from the latest cyber-thriller; it's actually been a reality for years now. How this will change – in a positive or negative direction – as artificial intelligence (AI) takes on a larger role in software development is one of the big uncertainties related to this brave new world. In an era where AI promises to revolutionize how we live and work, the conversation about its security implications cannot be sidelined. As we increasingly rely on AI for tasks ranging from mundane to mission-critical, the question is no longer just, "Can AI  boost cybersecurity ?" (sure!), but also "Can AI  be hacked? " (yes!), "Can one use AI  to hack? " (of course!), and "Will AI  produce secure software ?" (well…). This thought leadership article is about the latter. Cydrill  (a
Palo Alto Networks Releases Urgent Fixes for Exploited PAN-OS Vulnerability

Palo Alto Networks Releases Urgent Fixes for Exploited PAN-OS Vulnerability

Apr 15, 2024 Firewall Security / Vulnerability
Palo Alto Networks has released hotfixes to address a maximum-severity security flaw impacting PAN-OS software that has come under active exploitation in the wild. Tracked as  CVE-2024-3400  (CVSS score: 10.0), the critical vulnerability is a case of command injection in the GlobalProtect feature that an unauthenticated attacker could weaponize to execute arbitrary code with root privileges on the firewall. Fixes for the shortcoming are available in the following versions - PAN-OS 10.2.9-h1 PAN-OS 11.0.4-h1, and PAN-OS 11.1.2-h3 Patches for other commonly deployed maintenance releases are expected to be released over the next few days. "This issue is applicable only to PAN-OS 10.2, PAN-OS 11.0, and PAN-OS 11.1 firewalls configured with GlobalProtect gateway or GlobalProtect portal (or both) and device telemetry enabled," the company  clarified  in its updated advisory. It also said that while Cloud NGFW firewalls are not impacted by CVE-2024-3400, specific PAN-OS
Hackers Deploy Python Backdoor in Palo Alto Zero-Day Attack

Hackers Deploy Python Backdoor in Palo Alto Zero-Day Attack

Apr 13, 2024
Threat actors have been exploiting the newly disclosed zero-day flaw in Palo Alto Networks PAN-OS software dating back to March 26, 2024, nearly three weeks before it came to light yesterday. The network security company's Unit 42 division is  tracking  the activity under the name  Operation MidnightEclipse , attributing it as the work of a single threat actor of unknown provenance. The security vulnerability, tracked as  CVE-2024-3400  (CVSS score: 10.0), is a command injection flaw that enables unauthenticated attackers to execute arbitrary code with root privileges on the firewall. It's worth noting that the issue is applicable only to PAN-OS 10.2, PAN-OS 11.0, and PAN-OS 11.1 firewall configurations that have GlobalProtect gateway and device telemetry enabled. Operation MidnightEclipse entails the exploitation of the flaw to create a cron job that runs every minute to fetch commands hosted on an external server ("172.233.228[
Zero-Day Alert: Critical Palo Alto Networks PAN-OS Flaw Under Active Attack

Zero-Day Alert: Critical Palo Alto Networks PAN-OS Flaw Under Active Attack

Apr 12, 2024 Network Security / Zero-Day
Palo Alto Networks is warning that a critical flaw impacting PAN-OS software used in its GlobalProtect gateways is being actively exploited in the wild. Tracked as  CVE-2024-3400 , the issue has a CVSS score of 10.0, indicating maximum severity. "A command injection vulnerability in the GlobalProtect feature of Palo Alto Networks PAN-OS software for specific PAN-OS versions and distinct feature configurations may enable an unauthenticated attacker to execute arbitrary code with root privileges on the firewall," the company  said  in an advisory published today. The flaw impacts the following versions of PAN-OS, with fixes expected to be released on April 14, 2024 - PAN-OS < 11.1.2-h3 PAN-OS < 11.0.4-h1 PAN-OS < 10.2.9-h1 The company also said that the issue is applicable only to firewalls that have the configurations for both  GlobalProtect gateway  (Network > GlobalProtect > Gateways) and  device telemetry  (Device > Setup > Telemetry) enabled.
Python's PyPI Reveals Its Secrets

Python's PyPI Reveals Its Secrets

Apr 11, 2024 Software Security / Programming
GitGuardian is famous for its annual  State of Secrets Sprawl  report. In their 2023 report, they found over 10 million exposed passwords, API keys, and other credentials exposed in public GitHub commits. The takeaways in their 2024 report did not just highlight 12.8 million  new  exposed secrets in GitHub, but a number in the popular Python package repository  PyPI . PyPI, short for the Python Package Index, hosts over 20 terabytes of files that are freely available for use in Python projects. If you've ever typed pip install [name of package], it likely pulled that package from PyPI. A lot of people use it too. Whether it's GitHub, PyPI, or others, the report states, "open-source packages make up an estimated 90% of the code run in production today. "  It's easy to see why that is when these packages help developers avoid the reinvention of millions of wheels every day. In the 2024 report, GitGuardian reported finding over 11,000 exposed  unique  secrets, wit
Fortinet Rolls Out Critical Security Patches for FortiClientLinux Vulnerability

Fortinet Rolls Out Critical Security Patches for FortiClientLinux Vulnerability

Apr 11, 2024 Vulnerability / Threat Mitigation
Fortinet has released patches to address a critical security flaw impacting FortiClientLinux that could be exploited to achieve arbitrary code execution. Tracked as CVE-2023-45590, the vulnerability carries a CVSS score of 9.4 out of a maximum of 10. "An Improper Control of Generation of Code ('Code Injection') vulnerability [CWE-94] in FortiClientLinux may allow an unauthenticated attacker to execute arbitrary code via tricking a FortiClientLinux user into visiting a malicious website," Fortinet  said  in an advisory. The shortcoming, which has been described as a case of remote code execution due to a "dangerous nodejs configuration," impacts the following versions - FortiClientLinux versions 7.0.3 through 7.0.4 and 7.0.6 through 7.0.10 (Upgrade to 7.0.11 or above) FortiClientLinux version 7.2.0 (Upgrade to 7.2.1 or above) Security researcher CataLpa from Dbappsecurity has been credited with discovering and reporting the vulnerability. Fortinet&
Microsoft Fixes 149 Flaws in Huge April Patch Release, Zero-Days Included

Microsoft Fixes 149 Flaws in Huge April Patch Release, Zero-Days Included

Apr 10, 2024 Patch Tuesday / Endpoint Security
Microsoft has released security updates for the month of April 2024 to remediate a record  149 flaws , two of which have come under active exploitation in the wild. Of the 149 flaws, three are rated Critical, 142 are rated Important, three are rated Moderate, and one is rated Low in severity. The update is aside from  21 vulnerabilities  that the company addressed in its Chromium-based Edge browser following the release of the  March 2024 Patch Tuesday fixes . The two shortcomings that have come under active exploitation are below - CVE-2024-26234  (CVSS score: 6.7) - Proxy Driver Spoofing Vulnerability CVE-2024-29988  (CVSS score: 8.8) - SmartScreen Prompt Security Feature Bypass Vulnerability While Microsoft's own advisory provides no information about CVE-2024-26234, cybersecurity firm Sophos said it discovered in December 2023 a malicious executable ("Catalog.exe" or "Catalog Authentication Client Service") that's  signed  by a valid Microsoft Wi
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