• Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Home
  • About Darknet
  • Hacking Tools
  • Popular Posts
  • Darknet Archives
  • Contact Darknet
    • Advertise
    • Submit a Tool
Darknet – Hacking Tools, Hacker News & Cyber Security

Darknet - Hacking Tools, Hacker News & Cyber Security

Darknet is your best source for the latest hacking tools, hacker news, cyber security best practices, ethical hacking & pen-testing.

0-Day Flash Vulnerability Exploited In The Wild

February 3, 2018

Views: 4,441

So another 0-Day Flash Vulnerability is being exploited in the Wild, a previously unknown flaw which has been labelled CVE-2018-4878 and it affects 28.0.0.137 and earlier versions for both Windows and Mac (the desktop runtime) and for basically everything in the Chrome Flash Player (Windows, Mac, Linux and Chrome OS).

0-Day Flash Vulnerability Exploited In The Wild

The full Adobe Security Advisory can be found here:

– Security Advisory for Flash Player | APSA18-01

Adobe warned on Thursday that attackers are exploiting a previously unknown security hole in its Flash Player software to break into Microsoft Windows computers. Adobe said it plans to issue a fix for the flaw in the next few days, but now might be a good time to check your exposure to this still-ubiquitous program and harden your defenses.

Adobe said a critical vulnerability (CVE-2018-4878) exists in Adobe Flash Player 28.0.0.137 and earlier versions. Successful exploitation could allow an attacker to take control of the affected system.

The software company warns that an exploit for the flaw is being used in the wild, and that so far the attacks leverage Microsoft Office documents with embedded malicious Flash content. Adobe said it plans to address this vulnerability in a release planned for the week of February 5.

According to Adobe’s advisory, beginning with Flash Player 27, administrators have the ability to change Flash Player’s behavior when running on Internet Explorer on Windows 7 and below by prompting the user before playing Flash content. A guide on how to do that is here (PDF). Administrators may also consider implementing Protected View for Office. Protected View opens a file marked as potentially unsafe in Read-only mode.

The wild usage of the exploit seems to be in the Korean context with North Korean hackers using it against South Korean targets and apparently they have been using it since November 2017.

It’s a fairly complex attack chain so I’m surprised if it’s a very reliable exploit as it targets Flash content embedded in Microsoft Office documents.

Hopefully, most readers here have taken my longstanding advice to disable or at least hobble Flash, a buggy and insecure component that nonetheless ships by default with Google Chrome and Internet Explorer. More on that approach (as well as slightly less radical solutions) can be found in A Month Without Adobe Flash Player. The short version is that you can probably get by without Flash installed and not miss it at all.

For readers still unwilling to cut the Flash cord, there are half-measures that work almost as well. Fortunately, disabling Flash in Chrome is simple enough. Paste “chrome://settings/content” into a Chrome browser bar and then select “Flash” from the list of items. By default it should be set to “Ask first” before running Flash, although users also can disable Flash entirely here or whitelist and blacklist specific sites.

By default, Mozilla Firefox on Windows computers with Flash installed runs Flash in a “protected mode,” which prompts the user to decide if they want to enable the plugin before Flash content runs on a Web site.

Another, perhaps less elegant, alternative to wholesale kicking Flash to the curb is to keeping it installed in a browser that you don’t normally use, and then only using that browser on sites that require Flash.

Most browsers of the current generation have either no Flash support at all, or make it “ask-first” when Flash content attempts to display. I would hazard a guess that this is why the attackers chose to target Flash embedded in Microsoft Office documents as it’s such ubiquitous software and not so regularly updated or patched by individuals or organsations.

It’s not the first Flash zero-day and it won’t be the last, we’ve reported on a few before, I think the impact should get less and less as more sites phase out Flash and move to native HTML5.

Source: Krebs

Related Posts:

  • An Introduction To Web Application Security Systems
  • What You Need To Know About KRACK WPA2 Wi-Fi Attack
  • nbtscan Download - NetBIOS Scanner For Windows & Linux
  • Latest Update Patches 78 CVE-classified Flash…
  • Fortinet SSH Backdoor Found In Firewalls
  • Apple Will Not Patch Windows QuickTime Vulnerabilities
Share
Tweet63
Share21
Buffer28
WhatsApp
Email
112 Shares

Filed Under: Hacking News Tagged With: flash



Primary Sidebar

Search Darknet

  • Email
  • Facebook
  • LinkedIn
  • RSS
  • Twitter

Advertise on Darknet

Latest Posts

Defending Against Malicious Botnets in 2025 Automated Traffic Threats and Mitigation

Defending Against Malicious Botnets in 2025 Automated Traffic Threats and Mitigation

Views: 177

Automated internet traffic will now overtake human activity, presenting sophisticated cyber threats … ...More about Defending Against Malicious Botnets in 2025 Automated Traffic Threats and Mitigation

TREVORspray - Credential Spray Toolkit for Azure, Okta, OWA & More

TREVORspray – Credential Spray Toolkit for Azure, Okta, OWA & More

Views: 342

TREVORspray is a purpose-built password spraying utility designed for red teams and offensive … ...More about TREVORspray – Credential Spray Toolkit for Azure, Okta, OWA & More

Force Push Scanner - Hunt GitHub Dangling Commits for Leaked Secrets

Force Push Scanner – Hunt GitHub Dangling Commits for Leaked Secrets

Views: 349

Force Push Scanner is an offensive security tool that identifies secrets inadvertently left in … ...More about Force Push Scanner – Hunt GitHub Dangling Commits for Leaked Secrets

Emerging Darknet Marketplaces of 2025 Anatomy Tactics & Trends

Emerging Darknet Marketplaces of 2025 Anatomy Tactics & Trends

Views: 5,493

Darknet marketplaces remain central to illicit trade in 2025, with evolving business models, payment … ...More about Emerging Darknet Marketplaces of 2025 Anatomy Tactics & Trends

Caracal - Rust eBPF Rootkit for Stealthy Post-Exploitation

Caracal – Rust eBPF Rootkit for Stealthy Post-Exploitation

Views: 519

Caracal is a new Rust-based eBPF (extended Berkeley Packet Filter) rootkit that provides a stealth … ...More about Caracal – Rust eBPF Rootkit for Stealthy Post-Exploitation

Windows_EndPoint_Audit - Endpoint Security Auditing Toolkit

Windows_EndPoint_Audit – Endpoint Security Auditing Toolkit

Views: 575

Windows_EndPoint_Audit from ITAuditMaverick introduces a powerful method for offensive security … ...More about Windows_EndPoint_Audit – Endpoint Security Auditing Toolkit

Topics

  • Advertorial (28)
  • Apple (46)
  • Cloud Security (2)
  • Countermeasures (231)
  • Cryptography (84)
  • Dark Web (1)
  • Database Hacking (89)
  • Events/Cons (7)
  • Exploits/Vulnerabilities (432)
  • Forensics (65)
  • GenAI (4)
  • Hacker Culture (9)
  • Hacking News (231)
  • Hacking Tools (688)
  • Hardware Hacking (82)
  • Legal Issues (179)
  • Linux Hacking (74)
  • Malware (240)
  • Networking Hacking Tools (353)
  • Password Cracking Tools (105)
  • Phishing (41)
  • Privacy (219)
  • Secure Coding (119)
  • Security Software (236)
  • Site News (51)
    • Authors (6)
  • Social Engineering (37)
  • Spammers & Scammers (76)
  • Stupid E-mails (6)
  • Telecomms Hacking (6)
  • UNIX Hacking (6)
  • Virology (6)
  • Web Hacking (384)
  • Windows Hacking (170)
  • Wireless Hacking (45)

Security Blogs

  • Dancho Danchev
  • F-Secure Weblog
  • Google Online Security
  • Graham Cluley
  • Internet Storm Center
  • Krebs on Security
  • Schneier on Security
  • TaoSecurity
  • Troy Hunt

Security Links

  • Exploits Database
  • Linux Security
  • Register – Security
  • SANS
  • Sec Lists
  • US CERT

Footer

Most Viewed Posts

  • Brutus Password Cracker Hacker – Download brutus-aet2.zip AET2 (2,333,833)
  • Darknet – Hacking Tools, Hacker News & Cyber Security (2,173,359)
  • Top 15 Security Utilities & Download Hacking Tools (2,096,839)
  • 10 Best Security Live CD Distros (Pen-Test, Forensics & Recovery) (1,199,813)
  • Password List Download Best Word List – Most Common Passwords (933,804)
  • wwwhack 1.9 – wwwhack19.zip Web Hacking Software Free Download (776,476)
  • Hack Tools/Exploits (673,480)
  • Wep0ff – Wireless WEP Key Cracker Tool (530,461)

Search

Recent Posts

  • Defending Against Malicious Botnets in 2025 Automated Traffic Threats and Mitigation July 16, 2025
  • TREVORspray – Credential Spray Toolkit for Azure, Okta, OWA & More July 14, 2025
  • Force Push Scanner – Hunt GitHub Dangling Commits for Leaked Secrets July 11, 2025
  • Emerging Darknet Marketplaces of 2025 Anatomy Tactics & Trends July 9, 2025
  • Caracal – Rust eBPF Rootkit for Stealthy Post-Exploitation July 7, 2025
  • Windows_EndPoint_Audit – Endpoint Security Auditing Toolkit July 4, 2025

Tags

apple botnets computer-security darknet Database Hacking ddos dos exploits fuzzing google hacking-networks hacking-websites hacking-windows hacking tool Information-Security information gathering Legal Issues malware microsoft network-security Network Hacking Password Cracking pen-testing penetration-testing Phishing Privacy Python scammers Security Security Software spam spammers sql-injection trojan trojans virus viruses vulnerabilities web-application-security web-security windows windows-security Windows Hacking worms XSS

Copyright © 1999–2025 Darknet All Rights Reserved · Privacy Policy